- published: 11 Sep 2010
- views: 208427
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http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.
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Please SUBSCRIBE to Science & Reason:
• http://www.youtube.com/Best0fScience
• http://www.youtube.com/ScienceTV
• http://www.youtube.com/FFreeThinker
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MEASURING THE ELECTROMAGNETIC SPECTRUM
The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes - visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation.
Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.
• http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
---
RADIO WAVES
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally-occurring radio waves are made by lightning, or by astronomical objects. Artificially-generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, satellite communication, computer networks and innumerable other applications.
Different frequencies of radio waves have different propagation characteristics in the Earth's atmosphere; long waves may cover a part of the Earth very consistently, shorter waves can reflect off the ionosphere and travel around the world, and much shorter wavelengths bend or reflect very little and travel on a line of sight.
Discovery and utilization: Radio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnetic observations. He then proposed equations, that described light waves and radio waves as waves of electromagnetism that travel in space. In 1887, Heinrich Hertz demonstrated the reality of Maxwell's electromagnetic waves by experimentally generating radio waves in his laboratory. Many inventions followed, making practical the use of radio waves to transfer information through space.
Propagation: The study of electromagnetic phenomena such as reflection, refraction, polarization, diffraction and absorption is of critical importance in the study of how radio waves move in free space and over the surface of the Earth. Different frequencies experience different combinations of these phenomena in the Earth's atmosphere, making certain radio bands more useful for specific purposes than others.
Radio communication: In order to receive radio signals, for instance from AM/FM radio stations, a radio antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range). This is typically done via a resonator (in its simplest form, a circuit with a capacitor and an inductor). The resonator is configured to resonate at a particular frequency (or frequency band), thus amplifying sine waves at that radio frequency, while ignoring other sine waves. Usually, either the inductor or the capacitor of the resonator is adjustable, allowing the user to change the frequency at which it resonates.
In medicine: Radio frequency (RF) energy has been used in medical treatments for over 75 years generally for minimally invasive surgeries and coagulation, including the treatment of sleep apnea.
• http://en.wikipedia.org/wiki/Radio_waves
.
Warning this video may cause excessive drowsiness do not listen to while operating machinery.
In this video I just briefly go over the frequency spectrum allocation chart for the United States toward the end of the video I will also show you where the radio spectrum ends and the light wave spectrum begins.
Here is a link to where you can get this chart for yourself.
( http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf )
... Don't forget your emergency supplies... at the Ready Store Best Price Guarantee
... ( http://www.thereadystore.com/?aid=4bacb6a179898 )
- published: 17 Mar 2012
- views: 13036
Radio spectrum refers to the part of the electromagnetic spectrum corresponding to radio frequencies – that is, frequencies lower than around 300 GHz (or, equivalently, wavelengths longer than about 1 mm). Electromagnetic waves in this frequency range, called radio waves, are used for radio communication and various other applications, such as heating. The generation of radio waves is strictly regulated by the government in most countries, coordinated by an international standards body called the International Telecommunications Union (ITU). Different parts of the radio spectrum are allocated for different radio transmission technologies and applications. In some cases, parts of the radio spectrum is sold or licensed to operators of private radio transmission services (for example, cellular telephone operators or broadcast television stations). Ranges of allocated frequencies are often referred to by their provisioned use (for example, cellular spectrum or television spectrum).
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
- published: 29 Aug 2014
- views: 165
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction To The Electromagnetic Spectrum
---
Please SUBSCRIBE to Science & Reason:
• http://www.youtube.com/Best0fScience
• http://www.youtube.com/ScienceTV
• http://www.youtube.com/FFreeThinker
---
Measuring the electromagnetic spectrum
You actually know more about it than you may think! The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes-- visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation.
Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.
The different types of radiation in the EM spectrum, in order from lowest energy to highest:
Radio: Yes, this is the same kind of energy that radio stations emit into the air for your boom box to capture and turn into your favorite Mozart, Madonna, or Justin Timberlake tunes. But radio waves are also emitted by other things ... such as stars and gases in space. You may not be able to dance to what these objects emit, but you can use it to learn what they are made of.
Microwaves: They will cook your popcorn in just a few minutes! Microwaves in space are used by astronomers to learn about the structure of nearby galaxies, and our own Milky Way!
Infrared: Our skin emits infrared light, which is why we can be seen in the dark by someone using night vision goggles. In space, IR light maps the dust between stars.
Visible: Yes, this is the part that our eyes see. Visible radiation is emitted by everything from fireflies to light bulbs to stars ... also by fast-moving particles hitting other particles.
Ultraviolet: We know that the Sun is a source of ultraviolet (or UV) radiation, because it is the UV rays that cause our skin to burn! Stars and other "hot" objects in space emit UV radiation.
X-rays: Your doctor uses them to look at your bones and your dentist to look at your teeth. Hot gases in the Universe also emit X-rays .
Gamma-rays: Radioactive materials (some natural and others made by man in things like nuclear power plants) can emit gamma-rays. Big particle accelerators that scientists use to help them understand what matter is made of can sometimes generate gamma-rays. But the biggest gamma-ray generator of all is the Universe! It makes gamma radiation in all kinds of ways.
• http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
.
- published: 01 Aug 2010
- views: 613016
Learn about this and other electronics standards in
http://www.amazon.com/Teach-Yourself-Electricity-Electronics-5th/dp/0071741356
- published: 11 Oct 2015
- views: 160
Limited Time Sale at iTunes:
http://smarturl.it/Clarity ($7.99)
http://smarturl.it/ClarityDeluxe ($9.99)
Music video: Spectrum by Zedd (feat. Matthew Koma) (C) 2012 Interscope Records
Video directed by Petro and featuring Taryn Manning & Derek Magyar
Download "Clarity"
http://smarturl.it/Clarity
Spectrum feat. Matthew Koma (Radio Mix) Available at iTunes: http://smarturl.it/Spectrum
- published: 16 Aug 2012
- views: 23557618
Here's the Calvin Harris radio edit of Florence + Machine's "Spectrum (Say My Name)" taken from the album Ceremonials.
- published: 30 May 2012
- views: 3933469
I was always curious to know what the RF signatures of the different 2.4 GHz RC radio implementation look like. I've done some research and read discussions on how they work/perform but never really "saw" them in action - until now.
Using my trustworthy IBM Thinkpad I set up a 2.4 GHz spectrum analyzer system designed to monitor the 2.4 GHz bandwidth for WIFI applications. Turns out the system works very well for RC radio systems as well !
I am not an electrical engineer but I do understand RF theory and have experience working with radio transmitters and antennas (ahh the DXing days...). Having said that, these are what I observed about the differences in the modules.
a) channel coverage
b) tendencies of the peaks to be more concentrated on section/s of the band
c) number of well defined peaks
d) shape of the peaks - base vs height
e) power output and relative presence of ambient noise
I am no expert and cannot determine which is the good, better or best module based on what I observed. What I can say is that all the radio/modules I used performed very well in the field.
Thanks for dropping by and fly safe!
- published: 06 Oct 2010
- views: 16904
Radio spectrum refers to the part of the electromagnetic spectrum corresponding to radio frequencies – that is, frequencies lower than around 300 GHz (or, equivalently, wavelengths longer than about 1 mm).
Different parts of the radio spectrum are used for different radio transmission technologies and applications. Radio spectrum is typically government regulated in developed countries and, in some cases, is sold or licensed to operators of private radio transmission systems (for example, cellular telephone operators or broadcast television stations). Ranges of allocated frequencies are often referred to by their provisioned use (for example, cellular spectrum or television spectrum).
A band is a small section of the spectrum of radio communication frequencies, in which channels are usually used or set aside for the same purpose.
Above 300 GHz, the absorption of electromagnetic radiation by Earth's atmosphere is so great that the atmosphere is effectively opaque, until it becomes transparent again in the near-infrared and optical window frequency ranges.
This page contains text from Wikipedia, the Free Encyclopedia -
http://en.wikipedia.org/wiki/Radio_spectrum
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
Adam Richard Wiles (born 17 January 1984), better known by his stage name Calvin Harris, is a Scottish DJ, singer, songwriter, and record producer. His gold-selling debut album, I Created Disco, was released in 2007 and contained the top ten singles "Acceptable in the 80s" and "The Girls". His second studio album, Ready for the Weekend (2009), reached number one in the UK Album Chart and includes the chart-topper "I'm Not Alone", the UK top five hit "Ready for the Weekend", and the singles "Flashback" and "You Used to Hold Me".
A remix album titled L.E.D. Festival was released in July 2010 as a free album in the August issue of Mixmag. Harris is currently working on his third studio album—due for release in 2012—which has produced the singles "Awooga", "Bounce", "Feel So Close", and "Let's Go". He has written and produced records for other recording artists including Kylie Minogue, Sophie Ellis-Bextor, Dizzee Rascal, Rihanna (on the international chart topper "We Found Love"), and Kesha.
This page contains text from Wikipedia, the Free Encyclopedia -
http://en.wikipedia.org/wiki/Calvin_Harris
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
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3:59Electromagnetic Spectrum: Radio Waves
Electromagnetic Spectrum: Radio WavesElectromagnetic Spectrum: Radio Waves
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object. --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- MEASURING THE ELECTROMAGNETIC SPECTRUM The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes - visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation. Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays. • http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html --- RADIO WAVES Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally-occurring radio waves are made by lightning, or by astronomical objects. Artificially-generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, satellite communication, computer networks and innumerable other applications. Different frequencies of radio waves have different propagation characteristics in the Earth's atmosphere; long waves may cover a part of the Earth very consistently, shorter waves can reflect off the ionosphere and travel around the world, and much shorter wavelengths bend or reflect very little and travel on a line of sight. Discovery and utilization: Radio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnetic observations. He then proposed equations, that described light waves and radio waves as waves of electromagnetism that travel in space. In 1887, Heinrich Hertz demonstrated the reality of Maxwell's electromagnetic waves by experimentally generating radio waves in his laboratory. Many inventions followed, making practical the use of radio waves to transfer information through space. Propagation: The study of electromagnetic phenomena such as reflection, refraction, polarization, diffraction and absorption is of critical importance in the study of how radio waves move in free space and over the surface of the Earth. Different frequencies experience different combinations of these phenomena in the Earth's atmosphere, making certain radio bands more useful for specific purposes than others. Radio communication: In order to receive radio signals, for instance from AM/FM radio stations, a radio antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range). This is typically done via a resonator (in its simplest form, a circuit with a capacitor and an inductor). The resonator is configured to resonate at a particular frequency (or frequency band), thus amplifying sine waves at that radio frequency, while ignoring other sine waves. Usually, either the inductor or the capacitor of the resonator is adjustable, allowing the user to change the frequency at which it resonates. In medicine: Radio frequency (RF) energy has been used in medical treatments for over 75 years generally for minimally invasive surgeries and coagulation, including the treatment of sleep apnea. • http://en.wikipedia.org/wiki/Radio_waves . -
18:48Communications Spectrum
Communications SpectrumCommunications Spectrum
Warning this video may cause excessive drowsiness do not listen to while operating machinery. In this video I just briefly go over the frequency spectrum allocation chart for the United States toward the end of the video I will also show you where the radio spectrum ends and the light wave spectrum begins. Here is a link to where you can get this chart for yourself. ( http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf ) ... Don't forget your emergency supplies... at the Ready Store Best Price Guarantee ... ( http://www.thereadystore.com/?aid=4bacb6a179898 ) -
1:29Radio Spectrum Animation
Radio Spectrum Animation -
10:38Radio spectrum
Radio spectrumRadio spectrum
Radio spectrum refers to the part of the electromagnetic spectrum corresponding to radio frequencies – that is, frequencies lower than around 300 GHz (or, equivalently, wavelengths longer than about 1 mm). Electromagnetic waves in this frequency range, called radio waves, are used for radio communication and various other applications, such as heating. The generation of radio waves is strictly regulated by the government in most countries, coordinated by an international standards body called the International Telecommunications Union (ITU). Different parts of the radio spectrum are allocated for different radio transmission technologies and applications. In some cases, parts of the radio spectrum is sold or licensed to operators of private radio transmission services (for example, cellular telephone operators or broadcast television stations). Ranges of allocated frequencies are often referred to by their provisioned use (for example, cellular spectrum or television spectrum). This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video -
5:20The Electromagnetic Spectrum
The Electromagnetic SpectrumThe Electromagnetic Spectrum
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction To The Electromagnetic Spectrum --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- Measuring the electromagnetic spectrum You actually know more about it than you may think! The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes-- visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation. Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays. The different types of radiation in the EM spectrum, in order from lowest energy to highest: Radio: Yes, this is the same kind of energy that radio stations emit into the air for your boom box to capture and turn into your favorite Mozart, Madonna, or Justin Timberlake tunes. But radio waves are also emitted by other things ... such as stars and gases in space. You may not be able to dance to what these objects emit, but you can use it to learn what they are made of. Microwaves: They will cook your popcorn in just a few minutes! Microwaves in space are used by astronomers to learn about the structure of nearby galaxies, and our own Milky Way! Infrared: Our skin emits infrared light, which is why we can be seen in the dark by someone using night vision goggles. In space, IR light maps the dust between stars. Visible: Yes, this is the part that our eyes see. Visible radiation is emitted by everything from fireflies to light bulbs to stars ... also by fast-moving particles hitting other particles. Ultraviolet: We know that the Sun is a source of ultraviolet (or UV) radiation, because it is the UV rays that cause our skin to burn! Stars and other "hot" objects in space emit UV radiation. X-rays: Your doctor uses them to look at your bones and your dentist to look at your teeth. Hot gases in the Universe also emit X-rays . Gamma-rays: Radioactive materials (some natural and others made by man in things like nuclear power plants) can emit gamma-rays. Big particle accelerators that scientists use to help them understand what matter is made of can sometimes generate gamma-rays. But the biggest gamma-ray generator of all is the Universe! It makes gamma radiation in all kinds of ways. • http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html . -
5:46The Radio Spectrum
The Radio SpectrumThe Radio Spectrum
Learn about this and other electronics standards in http://www.amazon.com/Teach-Yourself-Electricity-Electronics-5th/dp/0071741356 -
2:57Radio spectrum allocated for global flight tracking
Radio spectrum allocated for global flight tracking -
4:08Zedd - Spectrum (Official Video) ft. Matthew Koma
Zedd - Spectrum (Official Video) ft. Matthew KomaZedd - Spectrum (Official Video) ft. Matthew Koma
Limited Time Sale at iTunes: http://smarturl.it/Clarity ($7.99) http://smarturl.it/ClarityDeluxe ($9.99) Music video: Spectrum by Zedd (feat. Matthew Koma) (C) 2012 Interscope Records Video directed by Petro and featuring Taryn Manning & Derek Magyar Download "Clarity" http://smarturl.it/Clarity Spectrum feat. Matthew Koma (Radio Mix) Available at iTunes: http://smarturl.it/Spectrum -
3:39Spectrum (Say My Name) (Calvin Harris Radio Edit) - Florence + The Machine
Spectrum (Say My Name) (Calvin Harris Radio Edit) - Florence + The MachineSpectrum (Say My Name) (Calvin Harris Radio Edit) - Florence + The Machine
Here's the Calvin Harris radio edit of Florence + Machine's "Spectrum (Say My Name)" taken from the album Ceremonials. -
8:012.4 GHz RC Radio Spectrum Analysis with a PC Laptop
2.4 GHz RC Radio Spectrum Analysis with a PC Laptop2.4 GHz RC Radio Spectrum Analysis with a PC Laptop
I was always curious to know what the RF signatures of the different 2.4 GHz RC radio implementation look like. I've done some research and read discussions on how they work/perform but never really "saw" them in action - until now. Using my trustworthy IBM Thinkpad I set up a 2.4 GHz spectrum analyzer system designed to monitor the 2.4 GHz bandwidth for WIFI applications. Turns out the system works very well for RC radio systems as well ! I am not an electrical engineer but I do understand RF theory and have experience working with radio transmitters and antennas (ahh the DXing days...). Having said that, these are what I observed about the differences in the modules. a) channel coverage b) tendencies of the peaks to be more concentrated on section/s of the band c) number of well defined peaks d) shape of the peaks - base vs height e) power output and relative presence of ambient noise I am no expert and cannot determine which is the good, better or best module based on what I observed. What I can say is that all the radio/modules I used performed very well in the field. Thanks for dropping by and fly safe! -
5:04Tour of the EMS 01 - Introduction
Tour of the EMS 01 - IntroductionTour of the EMS 01 - Introduction
-
4:01Zedd - Spectrum (feat. Matthew Koma) [Radio Edit]
Zedd - Spectrum (feat. Matthew Koma) [Radio Edit]
- 500 kHz
- 6-meter band
- A band (radio)
- Abbreviation
- Active Denial System
- Airband
- Alfred Vail
- Alphabet
- AM radio
- Amateur radio
- Apex (radio band)
- ARPANET
- Avalanche
- B band
- Bandplan
- Base station
- Beacon
- BITNET
- Bluetooth
- Business band
- C band
- Cellular frequencies
- Cellular phone
- Charles Wheatstone
- Citizens' band radio
- Claude Chappe
- Coaxial cable
- Computer network
- Cordless telephone
- Crosshair
- D band
- Dependent territory
- Drum (communication)
- DXing
- E band
- Electrical telegraph
- Elisha Gray
- Ethernet
- F band
- Family Radio Service
- Fax
- FidoNet
- Fire-control system
- FM broadcast band
- FM radio
- Frequency
- Frequency allocation
- G band
- Garage door opener
- Geography
- Geophysics
- German language
- GMRS
- GPS
- Guglielmo Marconi
- H band
- Heart rate monitor
- Heliograph
- Hertz
- HF
- High frequency
- History of radio
- Hydraulic telegraph
- I band
- Infrared
- Internet
- Invention
- ISM band
- ITU
- ITU Radio Bands
- J band
- Johann Philipp Reis
- John Logie Baird
- K band
- Ka band
- Ku band
- L band
- Land mobile
- Lee De Forest
- Local area network
- Longwave
- Low frequency
- M band
- Marine VHF radio
- Mass media
- Medium frequency
- Medium wave
- Meteorology
- Microwave
- Microwave oven
- Mm wave
- Mobile phone
- Mobile telephony
- Nikola Tesla
- Open spectrum
- Optical fiber
- Over-the-horizon
- Packet switching
- Philo Farnsworth
- Photophone
- Police radio
- Q band
- R band
- Radar
- Radio
- Radio astronomy
- Radio clock
- Radio control
- Radio frequencies
- Radio navigation
- Radio network
- Radio Regulations
- Radio spectrum
- Radio waves
- Radiotelephone
- Receiver (radio)
- Reginald Fessenden
- Remote sensing
- RFID
- S band
- Scanner (radio)
- Semaphore line
- Shortwave
- Shortwave bands
- Sovereign state
- Sovereign territory
- Super high frequency
- Super low frequency
- Telecommunication
- Telegraphy
- Telephone line
- Television
- Television network
- Telex
- Template Asia topic
- Template MWband
- Template talk MWband
- Terahertz
- The Telephone Cases
- Tim Berners-Lee
- Transmission medium
- Transmitter
- Trunking
- TV-band device
- Two-way radio
- U band
- U-NII
- UHF
- UHF CB
- Ultra high frequency
- Ultra low frequency
- Ultra-wideband
- V band
- Very high frequency
- Very low frequency
- VHF
- Videotelephony
- Vint Cerf
- Vladimir K. Zworykin
- W band
- Walkie-talkie
- WARC bands
- Wavelength
- Weather radio
- Wi-Fi
- Wide area network
- Wireless LAN
- Wireless network
- World War II
- World Wide Web
- X band
- Y band
- ZigBee
-
Electromagnetic Spectrum: Radio Waves
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object. --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- MEASURING THE ELECTROMAGNETIC SPECTRUM The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes - visible light that comes ... -
Communications Spectrum
Warning this video may cause excessive drowsiness do not listen to while operating machinery. In this video I just briefly go over the frequency spectrum allocation chart for the United States toward the end of the video I will also show you where the radio spectrum ends and the light wave spectrum begins. Here is a link to where you can get this chart for yourself. ( http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf ) ... Don't forget your emergency supplies... at the Ready Store Best Price Guarantee ... ( http://www.thereadystore.com/?aid=4bacb6a179898 ) -
-
Radio spectrum
Radio spectrum refers to the part of the electromagnetic spectrum corresponding to radio frequencies – that is, frequencies lower than around 300 GHz (or, equivalently, wavelengths longer than about 1 mm). Electromagnetic waves in this frequency range, called radio waves, are used for radio communication and various other applications, such as heating. The generation of radio waves is strictly regulated by the government in most countries, coordinated by an international standards body called the International Telecommunications Union (ITU). Different parts of the radio spectrum are allocated for different radio transmission technologies and applications. In some cases, parts of the radio spectrum is sold or licensed to operators of private radio transmission services (for example, cellula... -
The Electromagnetic Spectrum
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction To The Electromagnetic Spectrum --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- Measuring the electromagnetic spectrum You actually know more about it than you may think! The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes-- visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation. Other examples of EM radiation are microwaves, infrared and ultraviolet lig... -
The Radio Spectrum
Learn about this and other electronics standards in http://www.amazon.com/Teach-Yourself-Electricity-Electronics-5th/dp/0071741356 -
-
Zedd - Spectrum (Official Video) ft. Matthew Koma
Limited Time Sale at iTunes: http://smarturl.it/Clarity ($7.99) http://smarturl.it/ClarityDeluxe ($9.99) Music video: Spectrum by Zedd (feat. Matthew Koma) (C) 2012 Interscope Records Video directed by Petro and featuring Taryn Manning & Derek Magyar Download "Clarity" http://smarturl.it/Clarity Spectrum feat. Matthew Koma (Radio Mix) Available at iTunes: http://smarturl.it/Spectrum -
Spectrum (Say My Name) (Calvin Harris Radio Edit) - Florence + The Machine
Here's the Calvin Harris radio edit of Florence + Machine's "Spectrum (Say My Name)" taken from the album Ceremonials. -
2.4 GHz RC Radio Spectrum Analysis with a PC Laptop
I was always curious to know what the RF signatures of the different 2.4 GHz RC radio implementation look like. I've done some research and read discussions on how they work/perform but never really "saw" them in action - until now. Using my trustworthy IBM Thinkpad I set up a 2.4 GHz spectrum analyzer system designed to monitor the 2.4 GHz bandwidth for WIFI applications. Turns out the system works very well for RC radio systems as well ! I am not an electrical engineer but I do understand RF theory and have experience working with radio transmitters and antennas (ahh the DXing days...). Having said that, these are what I observed about the differences in the modules. a) channel coverage b) tendencies of the peaks to be more concentrated on section/s of the band c) number o... -
Tour of the EMS 01 - Introduction
-
Electromagnetic Spectrum: Radio Waves
- Order: Reorder
- Duration: 3:59
- Updated: 11 Sep 2010
- views: 208427
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves
The electromagnetic spectrum is the range of all...
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.
---
Please SUBSCRIBE to Science & Reason:
• http://www.youtube.com/Best0fScience
• http://www.youtube.com/ScienceTV
• http://www.youtube.com/FFreeThinker
---
MEASURING THE ELECTROMAGNETIC SPECTRUM
The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes - visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation.
Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.
• http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
---
RADIO WAVES
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally-occurring radio waves are made by lightning, or by astronomical objects. Artificially-generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, satellite communication, computer networks and innumerable other applications.
Different frequencies of radio waves have different propagation characteristics in the Earth's atmosphere; long waves may cover a part of the Earth very consistently, shorter waves can reflect off the ionosphere and travel around the world, and much shorter wavelengths bend or reflect very little and travel on a line of sight.
Discovery and utilization: Radio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnetic observations. He then proposed equations, that described light waves and radio waves as waves of electromagnetism that travel in space. In 1887, Heinrich Hertz demonstrated the reality of Maxwell's electromagnetic waves by experimentally generating radio waves in his laboratory. Many inventions followed, making practical the use of radio waves to transfer information through space.
Propagation: The study of electromagnetic phenomena such as reflection, refraction, polarization, diffraction and absorption is of critical importance in the study of how radio waves move in free space and over the surface of the Earth. Different frequencies experience different combinations of these phenomena in the Earth's atmosphere, making certain radio bands more useful for specific purposes than others.
Radio communication: In order to receive radio signals, for instance from AM/FM radio stations, a radio antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range). This is typically done via a resonator (in its simplest form, a circuit with a capacitor and an inductor). The resonator is configured to resonate at a particular frequency (or frequency band), thus amplifying sine waves at that radio frequency, while ignoring other sine waves. Usually, either the inductor or the capacitor of the resonator is adjustable, allowing the user to change the frequency at which it resonates.
In medicine: Radio frequency (RF) energy has been used in medical treatments for over 75 years generally for minimally invasive surgeries and coagulation, including the treatment of sleep apnea.
• http://en.wikipedia.org/wiki/Radio_waves
.
wn.com/Electromagnetic Spectrum Radio Waves
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object.
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MEASURING THE ELECTROMAGNETIC SPECTRUM
The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes - visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation.
Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.
• http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
---
RADIO WAVES
Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Like all other electromagnetic waves, they travel at the speed of light. Naturally-occurring radio waves are made by lightning, or by astronomical objects. Artificially-generated radio waves are used for fixed and mobile radio communication, broadcasting, radar and other navigation systems, satellite communication, computer networks and innumerable other applications.
Different frequencies of radio waves have different propagation characteristics in the Earth's atmosphere; long waves may cover a part of the Earth very consistently, shorter waves can reflect off the ionosphere and travel around the world, and much shorter wavelengths bend or reflect very little and travel on a line of sight.
Discovery and utilization: Radio waves were first predicted by mathematical work done in 1865 by James Clerk Maxwell. Maxwell noticed wavelike properties of light and similarities in electrical and magnetic observations. He then proposed equations, that described light waves and radio waves as waves of electromagnetism that travel in space. In 1887, Heinrich Hertz demonstrated the reality of Maxwell's electromagnetic waves by experimentally generating radio waves in his laboratory. Many inventions followed, making practical the use of radio waves to transfer information through space.
Propagation: The study of electromagnetic phenomena such as reflection, refraction, polarization, diffraction and absorption is of critical importance in the study of how radio waves move in free space and over the surface of the Earth. Different frequencies experience different combinations of these phenomena in the Earth's atmosphere, making certain radio bands more useful for specific purposes than others.
Radio communication: In order to receive radio signals, for instance from AM/FM radio stations, a radio antenna must be used. However, since the antenna will pick up thousands of radio signals at a time, a radio tuner is necessary to tune in to a particular frequency (or frequency range). This is typically done via a resonator (in its simplest form, a circuit with a capacitor and an inductor). The resonator is configured to resonate at a particular frequency (or frequency band), thus amplifying sine waves at that radio frequency, while ignoring other sine waves. Usually, either the inductor or the capacitor of the resonator is adjustable, allowing the user to change the frequency at which it resonates.
In medicine: Radio frequency (RF) energy has been used in medical treatments for over 75 years generally for minimally invasive surgeries and coagulation, including the treatment of sleep apnea.
• http://en.wikipedia.org/wiki/Radio_waves
.
- published: 11 Sep 2010
- views: 208427
Communications Spectrum
- Order: Reorder
- Duration: 18:48
- Updated: 17 Mar 2012
- views: 13036
Warning this video may cause excessive drowsiness do not listen to while operating machinery.
In this video I just briefly go over the frequency spectrum all...
Warning this video may cause excessive drowsiness do not listen to while operating machinery.
In this video I just briefly go over the frequency spectrum allocation chart for the United States toward the end of the video I will also show you where the radio spectrum ends and the light wave spectrum begins.
Here is a link to where you can get this chart for yourself.
( http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf )
... Don't forget your emergency supplies... at the Ready Store Best Price Guarantee
... ( http://www.thereadystore.com/?aid=4bacb6a179898 )
wn.com/Communications Spectrum
Warning this video may cause excessive drowsiness do not listen to while operating machinery.
In this video I just briefly go over the frequency spectrum allocation chart for the United States toward the end of the video I will also show you where the radio spectrum ends and the light wave spectrum begins.
Here is a link to where you can get this chart for yourself.
( http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf )
... Don't forget your emergency supplies... at the Ready Store Best Price Guarantee
... ( http://www.thereadystore.com/?aid=4bacb6a179898 )
- published: 17 Mar 2012
- views: 13036
Radio Spectrum Animation
- Order: Reorder
- Duration: 1:29
- Updated: 12 Dec 2012
- views: 2293
This short animation explores the Radio Spectrum and the everyday activities that rely on radio frequencies.
This short animation explores the Radio Spectrum and the everyday activities that rely on radio frequencies.
wn.com/Radio Spectrum Animation
Radio spectrum
- Order: Reorder
- Duration: 10:38
- Updated: 29 Aug 2014
- views: 165
Radio spectrum refers to the part of the electromagnetic spectrum corresponding to radio frequencies – that is, frequencies lower than around 300 GHz (or, equiv...
Radio spectrum refers to the part of the electromagnetic spectrum corresponding to radio frequencies – that is, frequencies lower than around 300 GHz (or, equivalently, wavelengths longer than about 1 mm). Electromagnetic waves in this frequency range, called radio waves, are used for radio communication and various other applications, such as heating. The generation of radio waves is strictly regulated by the government in most countries, coordinated by an international standards body called the International Telecommunications Union (ITU). Different parts of the radio spectrum are allocated for different radio transmission technologies and applications. In some cases, parts of the radio spectrum is sold or licensed to operators of private radio transmission services (for example, cellular telephone operators or broadcast television stations). Ranges of allocated frequencies are often referred to by their provisioned use (for example, cellular spectrum or television spectrum).
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
wn.com/Radio Spectrum
Radio spectrum refers to the part of the electromagnetic spectrum corresponding to radio frequencies – that is, frequencies lower than around 300 GHz (or, equivalently, wavelengths longer than about 1 mm). Electromagnetic waves in this frequency range, called radio waves, are used for radio communication and various other applications, such as heating. The generation of radio waves is strictly regulated by the government in most countries, coordinated by an international standards body called the International Telecommunications Union (ITU). Different parts of the radio spectrum are allocated for different radio transmission technologies and applications. In some cases, parts of the radio spectrum is sold or licensed to operators of private radio transmission services (for example, cellular telephone operators or broadcast television stations). Ranges of allocated frequencies are often referred to by their provisioned use (for example, cellular spectrum or television spectrum).
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
- published: 29 Aug 2014
- views: 165
The Electromagnetic Spectrum
- Order: Reorder
- Duration: 5:20
- Updated: 01 Aug 2010
- views: 613016
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction To The Electromagnetic Spectrum
---
Please SUBSCRIBE to Science & Rea...
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction To The Electromagnetic Spectrum
---
Please SUBSCRIBE to Science & Reason:
• http://www.youtube.com/Best0fScience
• http://www.youtube.com/ScienceTV
• http://www.youtube.com/FFreeThinker
---
Measuring the electromagnetic spectrum
You actually know more about it than you may think! The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes-- visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation.
Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.
The different types of radiation in the EM spectrum, in order from lowest energy to highest:
Radio: Yes, this is the same kind of energy that radio stations emit into the air for your boom box to capture and turn into your favorite Mozart, Madonna, or Justin Timberlake tunes. But radio waves are also emitted by other things ... such as stars and gases in space. You may not be able to dance to what these objects emit, but you can use it to learn what they are made of.
Microwaves: They will cook your popcorn in just a few minutes! Microwaves in space are used by astronomers to learn about the structure of nearby galaxies, and our own Milky Way!
Infrared: Our skin emits infrared light, which is why we can be seen in the dark by someone using night vision goggles. In space, IR light maps the dust between stars.
Visible: Yes, this is the part that our eyes see. Visible radiation is emitted by everything from fireflies to light bulbs to stars ... also by fast-moving particles hitting other particles.
Ultraviolet: We know that the Sun is a source of ultraviolet (or UV) radiation, because it is the UV rays that cause our skin to burn! Stars and other "hot" objects in space emit UV radiation.
X-rays: Your doctor uses them to look at your bones and your dentist to look at your teeth. Hot gases in the Universe also emit X-rays .
Gamma-rays: Radioactive materials (some natural and others made by man in things like nuclear power plants) can emit gamma-rays. Big particle accelerators that scientists use to help them understand what matter is made of can sometimes generate gamma-rays. But the biggest gamma-ray generator of all is the Universe! It makes gamma radiation in all kinds of ways.
• http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
.
wn.com/The Electromagnetic Spectrum
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction To The Electromagnetic Spectrum
---
Please SUBSCRIBE to Science & Reason:
• http://www.youtube.com/Best0fScience
• http://www.youtube.com/ScienceTV
• http://www.youtube.com/FFreeThinker
---
Measuring the electromagnetic spectrum
You actually know more about it than you may think! The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group. Radiation is energy that travels and spreads out as it goes-- visible light that comes from a lamp in your house and radio waves that come from a radio station are two types of electromagnetic radiation.
Other examples of EM radiation are microwaves, infrared and ultraviolet light, X-rays and gamma-rays. Hotter, more energetic objects and events create higher energy radiation than cool objects. Only extremely hot objects or particles moving at very high velocities can create high-energy radiation like X-rays and gamma-rays.
The different types of radiation in the EM spectrum, in order from lowest energy to highest:
Radio: Yes, this is the same kind of energy that radio stations emit into the air for your boom box to capture and turn into your favorite Mozart, Madonna, or Justin Timberlake tunes. But radio waves are also emitted by other things ... such as stars and gases in space. You may not be able to dance to what these objects emit, but you can use it to learn what they are made of.
Microwaves: They will cook your popcorn in just a few minutes! Microwaves in space are used by astronomers to learn about the structure of nearby galaxies, and our own Milky Way!
Infrared: Our skin emits infrared light, which is why we can be seen in the dark by someone using night vision goggles. In space, IR light maps the dust between stars.
Visible: Yes, this is the part that our eyes see. Visible radiation is emitted by everything from fireflies to light bulbs to stars ... also by fast-moving particles hitting other particles.
Ultraviolet: We know that the Sun is a source of ultraviolet (or UV) radiation, because it is the UV rays that cause our skin to burn! Stars and other "hot" objects in space emit UV radiation.
X-rays: Your doctor uses them to look at your bones and your dentist to look at your teeth. Hot gases in the Universe also emit X-rays .
Gamma-rays: Radioactive materials (some natural and others made by man in things like nuclear power plants) can emit gamma-rays. Big particle accelerators that scientists use to help them understand what matter is made of can sometimes generate gamma-rays. But the biggest gamma-ray generator of all is the Universe! It makes gamma radiation in all kinds of ways.
• http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html
.
- published: 01 Aug 2010
- views: 613016
The Radio Spectrum
- Order: Reorder
- Duration: 5:46
- Updated: 11 Oct 2015
- views: 160
Learn about this and other electronics standards in
http://www.amazon.com/Teach-Yourself-Electricity-Electronics-5th/dp/0071741356
Learn about this and other electronics standards in
http://www.amazon.com/Teach-Yourself-Electricity-Electronics-5th/dp/0071741356
wn.com/The Radio Spectrum
Learn about this and other electronics standards in
http://www.amazon.com/Teach-Yourself-Electricity-Electronics-5th/dp/0071741356
- published: 11 Oct 2015
- views: 160
Radio spectrum allocated for global flight tracking
- Order: Reorder
- Duration: 2:57
- Updated: 11 Nov 2015
- views: 771
Aieron President & CEO Don Thoma discusses the agreement reached at the World Radiocommunication Conference 2015 (WRC-15) in Geneva on the allocation of radiofr...
Aieron President & CEO Don Thoma discusses the agreement reached at the World Radiocommunication Conference 2015 (WRC-15) in Geneva on the allocation of radiofrequency spectrum for global flight tracking in civil aviation.
wn.com/Radio Spectrum Allocated For Global Flight Tracking
Zedd - Spectrum (Official Video) ft. Matthew Koma
- Order: Reorder
- Duration: 4:08
- Updated: 16 Aug 2012
- views: 23557618
Limited Time Sale at iTunes:
http://smarturl.it/Clarity ($7.99)
http://smarturl.it/ClarityDeluxe ($9.99)
Music video: Spectrum by Zedd (feat. Matthew Koma) (...
Limited Time Sale at iTunes:
http://smarturl.it/Clarity ($7.99)
http://smarturl.it/ClarityDeluxe ($9.99)
Music video: Spectrum by Zedd (feat. Matthew Koma) (C) 2012 Interscope Records
Video directed by Petro and featuring Taryn Manning & Derek Magyar
Download "Clarity"
http://smarturl.it/Clarity
Spectrum feat. Matthew Koma (Radio Mix) Available at iTunes: http://smarturl.it/Spectrum
wn.com/Zedd Spectrum (Official Video) Ft. Matthew Koma
Limited Time Sale at iTunes:
http://smarturl.it/Clarity ($7.99)
http://smarturl.it/ClarityDeluxe ($9.99)
Music video: Spectrum by Zedd (feat. Matthew Koma) (C) 2012 Interscope Records
Video directed by Petro and featuring Taryn Manning & Derek Magyar
Download "Clarity"
http://smarturl.it/Clarity
Spectrum feat. Matthew Koma (Radio Mix) Available at iTunes: http://smarturl.it/Spectrum
- published: 16 Aug 2012
- views: 23557618
Spectrum (Say My Name) (Calvin Harris Radio Edit) - Florence + The Machine
- Order: Reorder
- Duration: 3:39
- Updated: 30 May 2012
- views: 3933469
Here's the Calvin Harris radio edit of Florence + Machine's "Spectrum (Say My Name)" taken from the album Ceremonials.
Here's the Calvin Harris radio edit of Florence + Machine's "Spectrum (Say My Name)" taken from the album Ceremonials.
wn.com/Spectrum (Say My Name) (Calvin Harris Radio Edit) Florence The Machine
Here's the Calvin Harris radio edit of Florence + Machine's "Spectrum (Say My Name)" taken from the album Ceremonials.
- published: 30 May 2012
- views: 3933469
2.4 GHz RC Radio Spectrum Analysis with a PC Laptop
- Order: Reorder
- Duration: 8:01
- Updated: 06 Oct 2010
- views: 16904
I was always curious to know what the RF signatures of the different 2.4 GHz RC radio implementation look like. I've done some research and read discussions on ...
I was always curious to know what the RF signatures of the different 2.4 GHz RC radio implementation look like. I've done some research and read discussions on how they work/perform but never really "saw" them in action - until now.
Using my trustworthy IBM Thinkpad I set up a 2.4 GHz spectrum analyzer system designed to monitor the 2.4 GHz bandwidth for WIFI applications. Turns out the system works very well for RC radio systems as well !
I am not an electrical engineer but I do understand RF theory and have experience working with radio transmitters and antennas (ahh the DXing days...). Having said that, these are what I observed about the differences in the modules.
a) channel coverage
b) tendencies of the peaks to be more concentrated on section/s of the band
c) number of well defined peaks
d) shape of the peaks - base vs height
e) power output and relative presence of ambient noise
I am no expert and cannot determine which is the good, better or best module based on what I observed. What I can say is that all the radio/modules I used performed very well in the field.
Thanks for dropping by and fly safe!
wn.com/2.4 Ghz Rc Radio Spectrum Analysis With A Pc Laptop
I was always curious to know what the RF signatures of the different 2.4 GHz RC radio implementation look like. I've done some research and read discussions on how they work/perform but never really "saw" them in action - until now.
Using my trustworthy IBM Thinkpad I set up a 2.4 GHz spectrum analyzer system designed to monitor the 2.4 GHz bandwidth for WIFI applications. Turns out the system works very well for RC radio systems as well !
I am not an electrical engineer but I do understand RF theory and have experience working with radio transmitters and antennas (ahh the DXing days...). Having said that, these are what I observed about the differences in the modules.
a) channel coverage
b) tendencies of the peaks to be more concentrated on section/s of the band
c) number of well defined peaks
d) shape of the peaks - base vs height
e) power output and relative presence of ambient noise
I am no expert and cannot determine which is the good, better or best module based on what I observed. What I can say is that all the radio/modules I used performed very well in the field.
Thanks for dropping by and fly safe!
- published: 06 Oct 2010
- views: 16904
Tour of the EMS 01 - Introduction
- Order: Reorder
- Duration: 5:04
- Updated: 06 May 2010
- views: 194963
- published: 06 May 2010
- views: 194963
Zedd - Spectrum (feat. Matthew Koma) [Radio Edit]
- Order: Reorder
- Duration: 4:01
- Updated: 03 Jun 2012
- views: 573197
Hope you enjoy the track. It can also be found on Zedd's first official album, 'Clarity'
Oh and also, feel free to check out my latest remake of Toulouse by Ni...
Hope you enjoy the track. It can also be found on Zedd's first official album, 'Clarity'
Oh and also, feel free to check out my latest remake of Toulouse by Nicky Romero, for you producers out there http://www.youtube.com/watch?v=zdvsfDARX7k
wn.com/Zedd Spectrum (Feat. Matthew Koma) Radio Edit
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3:59
Electromagnetic Spectrum: Radio Waves
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Epis...
published: 11 Sep 2010
Electromagnetic Spectrum: Radio Waves
Electromagnetic Spectrum: Radio Waves
- Report rights infringement
- published: 11 Sep 2010
- views: 208427
18:48
Communications Spectrum
Warning this video may cause excessive drowsiness do not listen to while operating machine...
published: 17 Mar 2012
Communications Spectrum
Communications Spectrum
- Report rights infringement
- published: 17 Mar 2012
- views: 13036
1:29
Radio Spectrum Animation
This short animation explores the Radio Spectrum and the everyday activities that rely on ...
published: 12 Dec 2012
Radio Spectrum Animation
Radio Spectrum Animation
- Report rights infringement
- published: 12 Dec 2012
- views: 2293
10:38
Radio spectrum
Radio spectrum refers to the part of the electromagnetic spectrum corresponding to radio f...
published: 29 Aug 2014
Radio spectrum
Radio spectrum
- Report rights infringement
- published: 29 Aug 2014
- views: 165
5:20
The Electromagnetic Spectrum
http://www.facebook.com/ScienceReason ... Science@NASA: EMS (Episode 1) - An Introduction ...
published: 01 Aug 2010
The Electromagnetic Spectrum
The Electromagnetic Spectrum
- Report rights infringement
- published: 01 Aug 2010
- views: 613016
5:46
The Radio Spectrum
Learn about this and other electronics standards in
http://www.amazon.com/Teach-Yourself-E...
published: 11 Oct 2015
The Radio Spectrum
The Radio Spectrum
- Report rights infringement
- published: 11 Oct 2015
- views: 160
2:57
Radio spectrum allocated for global flight tracking
Aieron President & CEO Don Thoma discusses the agreement reached at the World Radiocommuni...
published: 11 Nov 2015
Radio spectrum allocated for global flight tracking
Radio spectrum allocated for global flight tracking
- Report rights infringement
- published: 11 Nov 2015
- views: 771
4:08
Zedd - Spectrum (Official Video) ft. Matthew Koma
Limited Time Sale at iTunes:
http://smarturl.it/Clarity ($7.99)
http://smarturl.it/Clarit...
published: 16 Aug 2012
Zedd - Spectrum (Official Video) ft. Matthew Koma
Zedd - Spectrum (Official Video) ft. Matthew Koma
- Report rights infringement
- published: 16 Aug 2012
- views: 23557618
3:39
Spectrum (Say My Name) (Calvin Harris Radio Edit) - Florence + The Machine
Here's the Calvin Harris radio edit of Florence + Machine's "Spectrum (Say My Name)" taken...
published: 30 May 2012
Spectrum (Say My Name) (Calvin Harris Radio Edit) - Florence + The Machine
Spectrum (Say My Name) (Calvin Harris Radio Edit) - Florence + The Machine
- Report rights infringement
- published: 30 May 2012
- views: 3933469
8:01
2.4 GHz RC Radio Spectrum Analysis with a PC Laptop
I was always curious to know what the RF signatures of the different 2.4 GHz RC radio impl...
published: 06 Oct 2010
2.4 GHz RC Radio Spectrum Analysis with a PC Laptop
2.4 GHz RC Radio Spectrum Analysis with a PC Laptop
- Report rights infringement
- published: 06 Oct 2010
- views: 16904
5:04
Tour of the EMS 01 - Introduction
published: 06 May 2010
Tour of the EMS 01 - Introduction
Tour of the EMS 01 - Introduction
- Report rights infringement
- published: 06 May 2010
- views: 194963
4:01
Zedd - Spectrum (feat. Matthew Koma) [Radio Edit]
Hope you enjoy the track. It can also be found on Zedd's first official album, 'Clarity'
...
published: 03 Jun 2012
Zedd - Spectrum (feat. Matthew Koma) [Radio Edit]
Zedd - Spectrum (feat. Matthew Koma) [Radio Edit]
- Report rights infringement
- published: 03 Jun 2012
- views: 573197
Electromagnetic Spectrum: Radio Waves...
Communications Spectrum...
Radio Spectrum Animation...
Radio spectrum...
The Electromagnetic Spectrum...
The Radio Spectrum...
Radio spectrum allocated for global flight trackin...
Zedd - Spectrum (Official Video) ft. Matthew Koma...
Spectrum (Say My Name) (Calvin Harris Radio Edit) ...
2.4 GHz RC Radio Spectrum Analysis with a PC Lapto...
Tour of the EMS 01 - Introduction...
![Zedd - Spectrum (feat. Matthew Koma) [Radio Edit]](http://web.archive.org./web/20160520165006/http://i.ytimg.com/vi/tN-wGd7y0kE/0.jpg)
Zedd - Spectrum (feat. Matthew Koma) [Radio Edit]...
photo: AP / Manu Brabo, File
From The Halls Of Montezuma To Shores Of Tripoli, Imperialism Still Reigns Supreme
Edit WorldNews.com 20 May 2016
Article by WN.com Correspondent Dallas Darling It might come as a surprise to some, but since the early 1800’s the United States has taken the lead in empire-building throughout the world, primarily though aggressive racial, economic, military and cultural expansionist policies. It follows, then, that last week’s deployment of U.S ... military interventions. Shores of Tripoli First Overthrow of a Foreign Government Consequently, the U.S ... ....
photo: AP / Gonzalo Fuentes, Pool via AP
[UPDATE]: Egyptian, French Authorities Open EgyptAir Investigations, Bodies Recovered
Edit WorldNews.com 19 May 2016
Egypt’s chief prosecutor and the Paris prosecutor have ordered an “urgent investigation” into the crash of EgyptAir Flight 804, which crashed in the Mediterranean on Thursday with 66 people aboard en route from Paris to Cairo, Breitbart reported. Meanwhile, rescue teams have recovered the first two bodies thought to be from the crash, according to the Al Arabia channel, quoting Greek sources ... “I’m not excluding any theory....
photo: US Navy / MCS3 Bobby J Siens
China demands end to US surveillance after aircraft intercept
Edit The Times of India 20 May 2016
WASHINGTON/BEIJING. Beijing demanded an end to US surveillance near China on Thursday after two of its fighter jets carried out what the Pentagon said was an "unsafe" intercept of a US military reconnaissance aircraft over the South China Sea ... A US defense official said two Chinese J-11 fighter jets flew within 50 feet (15 meters) of the US EP-3 aircraft. The official said the incident took place east of Hainan island ... RELATED....
photo: US DoD / Army Sgt. 1st Class Clydell Kinchen
Israel defence minister resigns because he doesn't trust Benjamin Netanyahu
Edit The Independent 20 May 2016
Israel's defense minister has announced his resignation, citing a lack of 'trust' in Prime Minister Benjamin Netanyahu ... More follows More about. Benjamin Netanyahu ....
« back to news headlines
HSR and Federal Partners Realign Grant to Reflect Updated Business Plan (California High-Speed Rail Authority)
Edit Public Technologies 19 May 2016
(Source. California High-Speed Rail Authority) e7f77ea5-7a5e-41f5-bf6a-7266ae90653d.pdf. May 18, 2016. Annie Parker. 916-403-6931 (w). 916-203-2960 (c) ... SACRAMENTO, Calif ... Key amendments to the agreement include. ... This streamlines the payment process ... Amendment of the grant budget to include the Construction Package 1 northern extension to Madera and the purchase of Radio Spectrum to support train communications and safety measures ... #####....
Cell Phone Technology Takes the Next Step
Edit Economy & Markets Daily 12 May 2016
(Nasdaq ... Energous has designed several prototypes that actually charge your wireless device using the very radio frequencies that allow it to communicate ... If it can receive a radio signal, it can charge ... The FCC is charged with ensuring all radio, television, wire, satellite, and cable communications are properly managed and do not interfere with one another ... Expect radio spectrum approvals for using this technology to be extremely slow....
TeraGo Reports First Quarter 2016 Financial Results
Edit Stockhouse 12 May 2016
To deliver its services, the Company has built and operates a carrier-grade, IP network, using licensed and license-exempt spectrum and fibre-optic wireline infrastructure that supports commercially available equipment ... Radio Spectrum ... The Company owns a national spectrum portfolio of 24-GHz and 38-GHz wide-area spectrum licences which covers regions across Canada, including 1,160 MHz in Canada's 6 largest cities....
América Móvil informs about an acquisition in Peru (América Móvil SAB de CV)
Edit Public Technologies 10 May 2016
(Source. América Móvil SAB de CV) Microsoft Word - Adquisición Olo del Perú (Inglés-Mayo 9, 2016). "América Móvil informs about an acquisition in Peru". Mexico City, May 9, 2016. América Móvil, S.A.B. de C.V. ("AMX") [BMV. AMX] [NYSE. AMX] [NASDAQ. AMOV] [LATIBEX ... ("TVS") ... Olo and TVS provide telecommunications services throughout Peru and hold radio spectrum in the 2.5 GHz band ... Original document ... (noodl. 33472951) ....
SAF Tehnika has successfully participated in exhibition NAB Show 2016 (SAF Tehnika AS)
Edit Public Technologies 06 May 2016LCQ13: Internet access services for residents in remote areas (Commerce and Economic Development Bureau of the Hong Kong Special Administrative Region of the People's Republic of China)
Edit Public Technologies 05 May 2016
(Source. Commerce and Economic Development Bureau of the Hong Kong Special Administrative Region of the People's Republic of China). LCQ13 ... Question. ... Reply.. President, ... Among these FNOs, two are existing FNOs; while the other one is a new FNO who just obtained CA's approval last year to amend its unified carrier licence, such that it is able to use its radio spectrum to provide wireless fixed broadband services in rural and remote areas....
Could the FCC Shrink the Influence of Money in Politics?
Edit The Atlantic 03 May 2016
Require media to allocate specific amounts of coverage to the political process as terms of use for public radio spectrum or over cable, as cable crosses over not only public property, but also over private property seized by state eminent domain ... playing field for candidates that don’t have access to millions of dollars to buy TV and radio ads?....
ESA extends global ties (ESA - European Space Agency)
Edit Public Technologies 03 May 2016
(Source. ESA - European Space Agency). ESA extends global ties. Opening Malargüe. 3 May 2016. As an intergovernmental space agency, ESA engages with countries well beyond those of its member states ... From the Pampas to the cosmos ... Jornada Espacial ... ESA Malargüe tracking station. As part of the arrangement with Argentina, 10% of the station's time is available to Argentine scientists and engineers conducting research using the radio spectrum....
Risk aversion impedes innovation in information technology
Edit Science Daily 02 May 2016
Smartphones and tablets come from Asia and America, European industry is far behind. Causes are unfolded by a new study, e.g. risk aversion made the companies offer own data services at high prices instead of using open internet. Competitive pressure by Europe-wide granting of mobile telephone licenses or deregulation of the radio spectrum might improve the situation ... ....
Risk Aversion Impedes Innovation in Information Technology (Universität Karlsruhe)
Edit Public Technologies 02 May 2016
European IT and Mobile Providers often Missed Market Opportunities / Study Recommends Deregulation of Radio Spectrum and Funding of Secure Computers ... Competitive pressure by Europe-wide granting of mobile telephone licenses or the deregulation of the radio spectrum might improve the situation ... It exclusively relied on the GSM mobile radio standard ......
Vodafone IPO may be biggest since Coal India's
Edit DNA India 01 May 2016
-->. Telecom major Vodafone is getting closer to its initial public offering (IPO) plan in India and the company has already selected investment bankers for the issue ... ALSO READ ... ALSO READ ... The company is one of the largest corporate investors in Asia's third-largest economy and is expected to use the proceeds to buy additional radio spectrum and further expand its operations across India's crowded and cut-throat telecoms market....
Vodafone picks BofA, Kotak, UBS, other banks for India IPO, sources say
Edit The Times of India 30 Apr 2016
SINGAPORE/HONG KONG ... Deutsche Bank, HSBC and ICICI Securities have won joint book-runner roles, the people added, declining to be identified as the information is not public ... The company is one of the largest corporate investors in Asia's third-largest economy and is expected to use the proceeds to buy additional radio spectrum and further expand its operations across India's crowded and cut-throat telecoms market ... ....
Vodafone picks BofA, Kotak, UBS, other banks for India IPO - sources
Edit Yahoo Daily News 30 Apr 2016
By S. Anuradha and Sumeet Chatterjee ... Deutsche Bank, HSBC and ICICI Securities have won joint book-runner roles, the people added, declining to be identified as the information is not public ... The company is one of the largest corporate investors in Asia's third-largest economy and is expected to use the proceeds to buy additional radio spectrum and further expand its operations across India's crowded and cut-throat telecoms market....
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