- published: 11 Jul 2010
- views: 8508
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Perfoming a time travel using the TIME MANIPULATOR (VLF 77.5 Khz DCF77 time signal transmitter).
The machine was built simply to enjoy homebrewing. I tried to link the rather analog radio amateur world with the digital one of microcontrollers. Probably you need to be a huge science fiction fan as well as the time manipulator is certainly not a weekend project. Furthermore I used the project to teach myself the basics of a transmitter, impedance matching and harmonic suppression etc. (some first steps towards a homemade SSB TRX).
For further details goto:
http://endorphino.de/projects/electronics/timemanipulator/index_en.html
-----------------------------------------------
Note specifically that building transmitters is legal for licensed radio amateurs only. But even as licensed ham operator connecting this transmitter to an antenna is certainly prohibited by your local law.
-----------------------------------------------
Eine Zeitreise, durchgeführt mit dem ZEITMANIPULATOR (VLF 77,5 Khz DCF77 Zeitzeichensender).
Das Gerät ist aus reinem Spaß am Basteln entstanden, bei dem ich Techniken aus dem eher analogen Amateurfunk- mit Mikrocontrollertechnik verbunden habe. Wahrscheinlich muß man auch ein ziemlicher Science Fiction Fan sein, um einen solchen Aufwand zu betreiben. Ich benutzte dieses Projekt hauptsächlich aber, um mir die Grundlagen eines Senders, Anpassung, Oberwellenfilter etc. beizubringen (Vorbereitung für eine Eigenbau SSB TRX).
Mehr Details gibt's hier:
http://endorphino.de/projects/electronics/timemanipulator/index.html
-----------------------------------------------
Ich weise ausdrücklich darauf hin, daß der Bau von Sendeanlagen lizenzierten Funkamateuren vorbehalten ist! Der Betrieb eines solchen Gerätes an einer Antenne ist aber auch Funkamateuren gesetzlich verboten!
-----------------------------------------------
DCF77 Funksignal dekodieren
in diesem Video zeige ich wie man ein dcf-77 funkuhrsignal mit mit einen dcf77 Empfänger die 100 bis 200 ms Pulse hörbar machen und dann mit Stift und Papier entschlüsseln / decodieren kann. Der dcf-77 Sender ist ein von einer Atomuhr gesteuerter Langwellensender in Mainflingen bei Frankfurt am Main der die meisten Funkuhren in Europa mit der Uhrzeit versorgt. Die Reichweite des Senders beträgt etwa 2000 km.
Übertragen werden die Minuten, Stunden, Kalendertag, Wochentag, Monat, Jahr, ab und zu ein Bit ob eine Schaltsekunden eingefügt wird und ein Bit zur Anzeige ob Sommerzeit oder Winterzeit übertragen wird.
Facebook Elektronik Diskussionsgruppe: https://www.facebook.com/groups/Eflose
- published: 03 May 2011
- views: 12348
OLED Funkuhr mit einem ATmega168 und einem einfachen Zeitsignal-Empfängermodul.
Audiovisuelle Live-Demonstration des DCF77 Protokolls.
Hardware: Blutzuckermessgerät ca. 7€ + 5€ DCF-Modul
DCF77 Receiver:
Radio controlled clock 77.5 kHz 50kW Mainflingen near Frankfurt / Germany
Oled-Display-Recycling:
http://home.arcor.de/wehrsdorf/Oled-Display-Recycling.html
- published: 17 Oct 2009
- views: 8955
Semplice video sulla ricezione del segnale orario DCF77 emesso della stazione tedesca situata a Mainflingen, vicino a Francoforte, in Germania. Il segnale è costitutito da una portante non modulata a 77.5 KHz. Pertanto è ricevibile nei modi USB, LSB e CW.
- published: 22 Feb 2014
- views: 1430
1 minute 4K Ultra HD video showing my Master Clock Mk2 pulsing and chiming the hours at 10 o'clock.
The clock uses the DCF77 radio clock in Germany to keep perfect time. The clock can drive 1 sec alternating and 30 second slave clocks and provides 1min, 1 hour and 24 hour pulses. The clock also provides chime pulses for quarter hour and hours to drive electronic or electromechanical chimes.
See http://home.btconnect.com/brettoliver1/Master_Clock_MK2/Master_Clock_MK2.htm for full construction details.
- published: 13 Sep 2014
- views: 3023
This little fella (a Raspberry Pi single board computer) is going to be my private network time server, to be used by all network devices in my private network. The idea is to use the DCF77 longwave time signal transmitted from Mainflingen in Germany as a long term time reference, and a real-time clock module with battery backup as a reliable local time reference.
Since I live at a fairly long distance from the DCF transmitter (I live in Stockholm, Sweden), the time signal is somewhat unreliable, much depending on weather and time of day. Generally the time signal can be received cleanly at night, but not in daytime. Anyway I just want to sync the real-time clock every now and then, so it is sufficient.
The prototyping board ontop of the RPi is an interface between the DCF77 antenna/receiver and the GPIO connector on the RPi. Ontop of that is the real-time clock module (the little green board with the battery). It is connected to the GPIO pins via a 6-pin passthrough connector on the back (top) side of the prototype board.
The blinking LED indicates the reception of DCF77 time pulses, for debugging. I know it's much easier to just use a GPS module as a reliable time reference, but that just wouldn't be as fun as building a DCF77 decoder, would it? :)
- published: 01 May 2013
- views: 2069
This is a little project I made during the summer of 2011 to learn about DCF77.
For DCF77 reception a Conrad antenna module was used.
The electronics, PCB and SW design was done by me using a custum, chip on glass LCD DOGL128 and PIC18F23K20 controller.
The video shows how a date and time updated when a DCF77 full frame received.
- published: 21 Jun 2012
- views: 1978
Arduino powered DCF77 Analyzer Clock.
Uses 2 x Atmega328 microprocessors 1 for the Analyzer & displays and 1 for the DCF77 Super Filter.
Displays use 3 x 8x8 Dot matrix and 4 are 8 digit 7 segment display modules.
Full details home.btconnect.com/brettoliver1/DCF77_Analyzer_Clock/DCF77_Analyzer_Clock.htm
- published: 10 Dec 2015
- views: 118
http://elektronikbasteln.pl7.de/laengstwellen-konverter-von-9-bis-500-khz-mit-einem-so42p.html
DCF77-Zeitzeichen-Empfang aus über 1000 km Entfernung. Das Antennensignal von einem 30 m langen Draht gelangt in einen Längstwellen-Konverter mit einem SO42P, welcher das Eingangssignal 10 MHz heraufmischt, um vom FT-747GX auf 10,0775 MHz empfangen werden zu können. Danach gelangt dieses Signal nach dem Durchlaufen mehrerer ZF-Stufen zum 12-kHz-Zwischenfrequenz-Ausgang des dafür umgebauten FT-747GX. Dieses 12-kHz-Signal wird über ein Soundkarten-Interface der Soundkarte des PC zugeführt. Dort dekodiert das Programm SoDiRa schließlich das Signal zur Darstellung der Uhrzeit und des Datums. Sicherlich geht es auch einfacher. Es ist eben nur ein Experiment.
- published: 18 Oct 2011
- views: 2221
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9:57Time Manipulator - DCF77 time signal transmitter [Zeitmanipulator - DCF77 Zeitzeichensender]
Time Manipulator - DCF77 time signal transmitter [Zeitmanipulator - DCF77 Zeitzeichensender]Time Manipulator - DCF77 time signal transmitter [Zeitmanipulator - DCF77 Zeitzeichensender]
Perfoming a time travel using the TIME MANIPULATOR (VLF 77.5 Khz DCF77 time signal transmitter). The machine was built simply to enjoy homebrewing. I tried to link the rather analog radio amateur world with the digital one of microcontrollers. Probably you need to be a huge science fiction fan as well as the time manipulator is certainly not a weekend project. Furthermore I used the project to teach myself the basics of a transmitter, impedance matching and harmonic suppression etc. (some first steps towards a homemade SSB TRX). For further details goto: http://endorphino.de/projects/electronics/timemanipulator/index_en.html ----------------------------------------------- Note specifically that building transmitters is legal for licensed radio amateurs only. But even as licensed ham operator connecting this transmitter to an antenna is certainly prohibited by your local law. ----------------------------------------------- Eine Zeitreise, durchgeführt mit dem ZEITMANIPULATOR (VLF 77,5 Khz DCF77 Zeitzeichensender). Das Gerät ist aus reinem Spaß am Basteln entstanden, bei dem ich Techniken aus dem eher analogen Amateurfunk- mit Mikrocontrollertechnik verbunden habe. Wahrscheinlich muß man auch ein ziemlicher Science Fiction Fan sein, um einen solchen Aufwand zu betreiben. Ich benutzte dieses Projekt hauptsächlich aber, um mir die Grundlagen eines Senders, Anpassung, Oberwellenfilter etc. beizubringen (Vorbereitung für eine Eigenbau SSB TRX). Mehr Details gibt's hier: http://endorphino.de/projects/electronics/timemanipulator/index.html ----------------------------------------------- Ich weise ausdrücklich darauf hin, daß der Bau von Sendeanlagen lizenzierten Funkamateuren vorbehalten ist! Der Betrieb eines solchen Gerätes an einer Antenne ist aber auch Funkamateuren gesetzlich verboten! ----------------------------------------------- -
1:17DCF77 signal reception with Conrad DCF77 module
DCF77 signal reception with Conrad DCF77 module -
3:56DCF77 Funkuhr Dekodieren Entschlüsseln - eflose #44
DCF77 Funkuhr Dekodieren Entschlüsseln - eflose #44DCF77 Funkuhr Dekodieren Entschlüsseln - eflose #44
DCF77 Funksignal dekodieren in diesem Video zeige ich wie man ein dcf-77 funkuhrsignal mit mit einen dcf77 Empfänger die 100 bis 200 ms Pulse hörbar machen und dann mit Stift und Papier entschlüsseln / decodieren kann. Der dcf-77 Sender ist ein von einer Atomuhr gesteuerter Langwellensender in Mainflingen bei Frankfurt am Main der die meisten Funkuhren in Europa mit der Uhrzeit versorgt. Die Reichweite des Senders beträgt etwa 2000 km. Übertragen werden die Minuten, Stunden, Kalendertag, Wochentag, Monat, Jahr, ab und zu ein Bit ob eine Schaltsekunden eingefügt wird und ein Bit zur Anzeige ob Sommerzeit oder Winterzeit übertragen wird. Facebook Elektronik Diskussionsgruppe: https://www.facebook.com/groups/Eflose -
2:37OLED DCF77 Demo - radio controlled clock
OLED DCF77 Demo - radio controlled clockOLED DCF77 Demo - radio controlled clock
OLED Funkuhr mit einem ATmega168 und einem einfachen Zeitsignal-Empfängermodul. Audiovisuelle Live-Demonstration des DCF77 Protokolls. Hardware: Blutzuckermessgerät ca. 7€ + 5€ DCF-Modul DCF77 Receiver: Radio controlled clock 77.5 kHz 50kW Mainflingen near Frankfurt / Germany Oled-Display-Recycling: http://home.arcor.de/wehrsdorf/Oled-Display-Recycling.html -
12:53Decodifica segnale DCF77 Mainflingen - Germania
Decodifica segnale DCF77 Mainflingen - GermaniaDecodifica segnale DCF77 Mainflingen - Germania
Semplice video sulla ricezione del segnale orario DCF77 emesso della stazione tedesca situata a Mainflingen, vicino a Francoforte, in Germania. Il segnale è costitutito da una portante non modulata a 77.5 KHz. Pertanto è ricevibile nei modi USB, LSB e CW. -
2:04DCF77 mit Fledermausdetektor
DCF77 mit Fledermausdetektor -
1:01DCF77 Master Clock Chiming and Pulsing
DCF77 Master Clock Chiming and PulsingDCF77 Master Clock Chiming and Pulsing
1 minute 4K Ultra HD video showing my Master Clock Mk2 pulsing and chiming the hours at 10 o'clock. The clock uses the DCF77 radio clock in Germany to keep perfect time. The clock can drive 1 sec alternating and 30 second slave clocks and provides 1min, 1 hour and 24 hour pulses. The clock also provides chime pulses for quarter hour and hours to drive electronic or electromechanical chimes. See http://home.btconnect.com/brettoliver1/Master_Clock_MK2/Master_Clock_MK2.htm for full construction details. -
0:32Receiving DCF77 time on RPi
Receiving DCF77 time on RPiReceiving DCF77 time on RPi
This little fella (a Raspberry Pi single board computer) is going to be my private network time server, to be used by all network devices in my private network. The idea is to use the DCF77 longwave time signal transmitted from Mainflingen in Germany as a long term time reference, and a real-time clock module with battery backup as a reliable local time reference. Since I live at a fairly long distance from the DCF transmitter (I live in Stockholm, Sweden), the time signal is somewhat unreliable, much depending on weather and time of day. Generally the time signal can be received cleanly at night, but not in daytime. Anyway I just want to sync the real-time clock every now and then, so it is sufficient. The prototyping board ontop of the RPi is an interface between the DCF77 antenna/receiver and the GPIO connector on the RPi. Ontop of that is the real-time clock module (the little green board with the battery). It is connected to the GPIO pins via a 6-pin passthrough connector on the back (top) side of the prototype board. The blinking LED indicates the reception of DCF77 time pulses, for debugging. I know it's much easier to just use a GPS module as a reliable time reference, but that just wouldn't be as fun as building a DCF77 decoder, would it? :) -
0:24DCF77 signal reception
DCF77 signal receptionDCF77 signal reception
This is a little project I made during the summer of 2011 to learn about DCF77. For DCF77 reception a Conrad antenna module was used. The electronics, PCB and SW design was done by me using a custum, chip on glass LCD DOGL128 and PIC18F23K20 controller. The video shows how a date and time updated when a DCF77 full frame received. -
1:17Arduino DCF77 Analyzer Clock
Arduino DCF77 Analyzer ClockArduino DCF77 Analyzer Clock
Arduino powered DCF77 Analyzer Clock. Uses 2 x Atmega328 microprocessors 1 for the Analyzer & displays and 1 for the DCF77 Super Filter. Displays use 3 x 8x8 Dot matrix and 4 are 8 digit 7 segment display modules. Full details home.btconnect.com/brettoliver1/DCF77_Analyzer_Clock/DCF77_Analyzer_Clock.htm -
2:59DCF77 clock
DCF77 clockDCF77 clock
DCF77 clock with Atmel Atmega32 -
1:54Experimenteller DCF77-Zeitzeichen-Empfang
Experimenteller DCF77-Zeitzeichen-EmpfangExperimenteller DCF77-Zeitzeichen-Empfang
http://elektronikbasteln.pl7.de/laengstwellen-konverter-von-9-bis-500-khz-mit-einem-so42p.html DCF77-Zeitzeichen-Empfang aus über 1000 km Entfernung. Das Antennensignal von einem 30 m langen Draht gelangt in einen Längstwellen-Konverter mit einem SO42P, welcher das Eingangssignal 10 MHz heraufmischt, um vom FT-747GX auf 10,0775 MHz empfangen werden zu können. Danach gelangt dieses Signal nach dem Durchlaufen mehrerer ZF-Stufen zum 12-kHz-Zwischenfrequenz-Ausgang des dafür umgebauten FT-747GX. Dieses 12-kHz-Signal wird über ein Soundkarten-Interface der Soundkarte des PC zugeführt. Dort dekodiert das Programm SoDiRa schließlich das Signal zur Darstellung der Uhrzeit und des Datums. Sicherlich geht es auch einfacher. Es ist eben nur ein Experiment. -
1:48DCF77 with 100 mt long wire
DCF77 with 100 mt long wire -
0:17DCF77 leap second on oscilloscope
DCF77 leap second on oscilloscopeDCF77 leap second on oscilloscope
Insertion of leap second into UTC observed on oscilloscope fed by DCF77 signal. Compared to DCF77 adjusted house clock (not reflecting the leap second as obvious). The DCF77 signal diminishes at beginning of each second, except the last second of a minute. Usually, this is the 60th second (hh.mm.59). When the leap second is inserted, diminution occurs at hh.mm.59 and it is missing in the 61th second (hh.mm.60). Upper video shows normal 60 sec. long minute, whereas the bottom video shows the minute with extra leap second. We can see, that diminution (blink) is first missing in upper video, in the next second, it is missing in the bottom video. Then, the bottom time is delayed by the extra second, and house clock shows wrong time, they are one sec. ahead until their readjustment occurs. More info: http://duch.cz/dcf77/prestupna/leap-second.html
-
Time Manipulator - DCF77 time signal transmitter [Zeitmanipulator - DCF77 Zeitzeichensender]
Perfoming a time travel using the TIME MANIPULATOR (VLF 77.5 Khz DCF77 time signal transmitter). The machine was built simply to enjoy homebrewing. I tried to link the rather analog radio amateur world with the digital one of microcontrollers. Probably you need to be a huge science fiction fan as well as the time manipulator is certainly not a weekend project. Furthermore I used the project to teach myself the basics of a transmitter, impedance matching and harmonic suppression etc. (some first steps towards a homemade SSB TRX). For further details goto: http://endorphino.de/projects/electronics/timemanipulator/index_en.html ----------------------------------------------- Note specifically that building transmitters is legal for licensed radio amateurs only. But even as licensed ... -
-
DCF77 Funkuhr Dekodieren Entschlüsseln - eflose #44
DCF77 Funksignal dekodieren in diesem Video zeige ich wie man ein dcf-77 funkuhrsignal mit mit einen dcf77 Empfänger die 100 bis 200 ms Pulse hörbar machen und dann mit Stift und Papier entschlüsseln / decodieren kann. Der dcf-77 Sender ist ein von einer Atomuhr gesteuerter Langwellensender in Mainflingen bei Frankfurt am Main der die meisten Funkuhren in Europa mit der Uhrzeit versorgt. Die Reichweite des Senders beträgt etwa 2000 km. Übertragen werden die Minuten, Stunden, Kalendertag, Wochentag, Monat, Jahr, ab und zu ein Bit ob eine Schaltsekunden eingefügt wird und ein Bit zur Anzeige ob Sommerzeit oder Winterzeit übertragen wird. Facebook Elektronik Diskussionsgruppe: https://www.facebook.com/groups/Eflose -
OLED DCF77 Demo - radio controlled clock
OLED Funkuhr mit einem ATmega168 und einem einfachen Zeitsignal-Empfängermodul. Audiovisuelle Live-Demonstration des DCF77 Protokolls. Hardware: Blutzuckermessgerät ca. 7€ + 5€ DCF-Modul DCF77 Receiver: Radio controlled clock 77.5 kHz 50kW Mainflingen near Frankfurt / Germany Oled-Display-Recycling: http://home.arcor.de/wehrsdorf/Oled-Display-Recycling.html -
Decodifica segnale DCF77 Mainflingen - Germania
Semplice video sulla ricezione del segnale orario DCF77 emesso della stazione tedesca situata a Mainflingen, vicino a Francoforte, in Germania. Il segnale è costitutito da una portante non modulata a 77.5 KHz. Pertanto è ricevibile nei modi USB, LSB e CW. -
-
DCF77 Master Clock Chiming and Pulsing
1 minute 4K Ultra HD video showing my Master Clock Mk2 pulsing and chiming the hours at 10 o'clock. The clock uses the DCF77 radio clock in Germany to keep perfect time. The clock can drive 1 sec alternating and 30 second slave clocks and provides 1min, 1 hour and 24 hour pulses. The clock also provides chime pulses for quarter hour and hours to drive electronic or electromechanical chimes. See http://home.btconnect.com/brettoliver1/Master_Clock_MK2/Master_Clock_MK2.htm for full construction details. -
Receiving DCF77 time on RPi
This little fella (a Raspberry Pi single board computer) is going to be my private network time server, to be used by all network devices in my private network. The idea is to use the DCF77 longwave time signal transmitted from Mainflingen in Germany as a long term time reference, and a real-time clock module with battery backup as a reliable local time reference. Since I live at a fairly long distance from the DCF transmitter (I live in Stockholm, Sweden), the time signal is somewhat unreliable, much depending on weather and time of day. Generally the time signal can be received cleanly at night, but not in daytime. Anyway I just want to sync the real-time clock every now and then, so it is sufficient. The prototyping board ontop of the RPi is an interface between the DCF77 antenna/rece... -
DCF77 signal reception
This is a little project I made during the summer of 2011 to learn about DCF77. For DCF77 reception a Conrad antenna module was used. The electronics, PCB and SW design was done by me using a custum, chip on glass LCD DOGL128 and PIC18F23K20 controller. The video shows how a date and time updated when a DCF77 full frame received. -
Arduino DCF77 Analyzer Clock
Arduino powered DCF77 Analyzer Clock. Uses 2 x Atmega328 microprocessors 1 for the Analyzer & displays and 1 for the DCF77 Super Filter. Displays use 3 x 8x8 Dot matrix and 4 are 8 digit 7 segment display modules. Full details home.btconnect.com/brettoliver1/DCF77_Analyzer_Clock/DCF77_Analyzer_Clock.htm -
DCF77 clock
DCF77 clock with Atmel Atmega32 -
Experimenteller DCF77-Zeitzeichen-Empfang
http://elektronikbasteln.pl7.de/laengstwellen-konverter-von-9-bis-500-khz-mit-einem-so42p.html DCF77-Zeitzeichen-Empfang aus über 1000 km Entfernung. Das Antennensignal von einem 30 m langen Draht gelangt in einen Längstwellen-Konverter mit einem SO42P, welcher das Eingangssignal 10 MHz heraufmischt, um vom FT-747GX auf 10,0775 MHz empfangen werden zu können. Danach gelangt dieses Signal nach dem Durchlaufen mehrerer ZF-Stufen zum 12-kHz-Zwischenfrequenz-Ausgang des dafür umgebauten FT-747GX. Dieses 12-kHz-Signal wird über ein Soundkarten-Interface der Soundkarte des PC zugeführt. Dort dekodiert das Programm SoDiRa schließlich das Signal zur Darstellung der Uhrzeit und des Datums. Sicherlich geht es auch einfacher. Es ist eben nur ein Experiment. -
-
DCF77 leap second on oscilloscope
Insertion of leap second into UTC observed on oscilloscope fed by DCF77 signal. Compared to DCF77 adjusted house clock (not reflecting the leap second as obvious). The DCF77 signal diminishes at beginning of each second, except the last second of a minute. Usually, this is the 60th second (hh.mm.59). When the leap second is inserted, diminution occurs at hh.mm.59 and it is missing in the 61th second (hh.mm.60). Upper video shows normal 60 sec. long minute, whereas the bottom video shows the minute with extra leap second. We can see, that diminution (blink) is first missing in upper video, in the next second, it is missing in the bottom video. Then, the bottom time is delayed by the extra second, and house clock shows wrong time, they are one sec. ahead until their readjustment occurs... -
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Mystery time signal station on 77.5 kHz (no it's not DCF77)
Since I started to explore longwave reception I have been hearing this time signal station on 77.5 kHz. The station is coming in 24/7 with readable signals here in Taiwan. During the last 20 seconds of each minute there is a variation of dots and dashes, which is clearly different from other stations, including DCF77 which also broadcasts on 77.5 kHz. Any reception reports from others on this station would be appreciated. On my website you can find more recordings and screen shots (just google my call sign). 73 de Hans BX2ABT / PA2BX -
DCF77 Frankfurt Radio Controlled Atomic Time Signal LCD
My home brewed DCF77 Radio Controlled Clock, incorporating 16F873 PIC and 20 MHz stability crystal using veroboard, decoupling caps etc, Red LED=Parity Error, Yellow LED= 0 bit, Green LED=1 bit , A=no pulses received for 2 seconds, LED display=16x2 HD44780 Hitachi. The jumper switch is for plus or minus hours. I will try to answer questions but expect a delay due to commitments. Thanks to my friend Tony who did all the hard work. -
Digital clock based on DCF77
Firstly - You must excuse my English! - Ok? ;) Precise clock synchronization will be held at 2:37 min.! Testmod (clock sound) start at 4:37! The lengh of this video is terrible(I know that), but it demonstrates many things: adjusting side trimmers for LCD contrast, Gong volume, tone changing and finally autovolume for Gong (Gong is in daylight loud and quiet when it's dark). Gong (IC SAE800) sounds on every full minute in testmod - without testmod sounds every half hour and every full hour! Description: Digital clock with 2x16 char LC-Display - based on DCF77 time information with microcontroller PIC16F628A and Gong IC SAE800 - I thank to author (Frits K. Raalte) for the circuit scheme and program (BASIC), published on his website: http://www.picbasic.nl/ I used this work for my graduation... -
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LCD DCF77 Master Bracket Clock
Using the DCF77 signal from Germany the clock uses an Arduino 328 chip to decode and display time on a 4x20 white on blue LCD display. The clock also displays time on a skeletal analogue dial. The clock also sends pulses for driving slave displays including 1sec, 5sec,10sec, 15sec, 20sec,30sec, 1min, 1 hour, 1day and quartz clock motor alternating 1 sec pulses.
Time Manipulator - DCF77 time signal transmitter [Zeitmanipulator - DCF77 Zeitzeichensender]
- Order: Reorder
- Duration: 9:57
- Updated: 11 Jul 2010
- views: 8508
Perfoming a time travel using the TIME MANIPULATOR (VLF 77.5 Khz DCF77 time signal transmitter).
The machine was built simply to enjoy homebrewing. I tried ...
Perfoming a time travel using the TIME MANIPULATOR (VLF 77.5 Khz DCF77 time signal transmitter).
The machine was built simply to enjoy homebrewing. I tried to link the rather analog radio amateur world with the digital one of microcontrollers. Probably you need to be a huge science fiction fan as well as the time manipulator is certainly not a weekend project. Furthermore I used the project to teach myself the basics of a transmitter, impedance matching and harmonic suppression etc. (some first steps towards a homemade SSB TRX).
For further details goto:
http://endorphino.de/projects/electronics/timemanipulator/index_en.html
-----------------------------------------------
Note specifically that building transmitters is legal for licensed radio amateurs only. But even as licensed ham operator connecting this transmitter to an antenna is certainly prohibited by your local law.
-----------------------------------------------
Eine Zeitreise, durchgeführt mit dem ZEITMANIPULATOR (VLF 77,5 Khz DCF77 Zeitzeichensender).
Das Gerät ist aus reinem Spaß am Basteln entstanden, bei dem ich Techniken aus dem eher analogen Amateurfunk- mit Mikrocontrollertechnik verbunden habe. Wahrscheinlich muß man auch ein ziemlicher Science Fiction Fan sein, um einen solchen Aufwand zu betreiben. Ich benutzte dieses Projekt hauptsächlich aber, um mir die Grundlagen eines Senders, Anpassung, Oberwellenfilter etc. beizubringen (Vorbereitung für eine Eigenbau SSB TRX).
Mehr Details gibt's hier:
http://endorphino.de/projects/electronics/timemanipulator/index.html
-----------------------------------------------
Ich weise ausdrücklich darauf hin, daß der Bau von Sendeanlagen lizenzierten Funkamateuren vorbehalten ist! Der Betrieb eines solchen Gerätes an einer Antenne ist aber auch Funkamateuren gesetzlich verboten!
-----------------------------------------------
wn.com/Time Manipulator Dcf77 Time Signal Transmitter Zeitmanipulator Dcf77 Zeitzeichensender
Perfoming a time travel using the TIME MANIPULATOR (VLF 77.5 Khz DCF77 time signal transmitter).
The machine was built simply to enjoy homebrewing. I tried to link the rather analog radio amateur world with the digital one of microcontrollers. Probably you need to be a huge science fiction fan as well as the time manipulator is certainly not a weekend project. Furthermore I used the project to teach myself the basics of a transmitter, impedance matching and harmonic suppression etc. (some first steps towards a homemade SSB TRX).
For further details goto:
http://endorphino.de/projects/electronics/timemanipulator/index_en.html
-----------------------------------------------
Note specifically that building transmitters is legal for licensed radio amateurs only. But even as licensed ham operator connecting this transmitter to an antenna is certainly prohibited by your local law.
-----------------------------------------------
Eine Zeitreise, durchgeführt mit dem ZEITMANIPULATOR (VLF 77,5 Khz DCF77 Zeitzeichensender).
Das Gerät ist aus reinem Spaß am Basteln entstanden, bei dem ich Techniken aus dem eher analogen Amateurfunk- mit Mikrocontrollertechnik verbunden habe. Wahrscheinlich muß man auch ein ziemlicher Science Fiction Fan sein, um einen solchen Aufwand zu betreiben. Ich benutzte dieses Projekt hauptsächlich aber, um mir die Grundlagen eines Senders, Anpassung, Oberwellenfilter etc. beizubringen (Vorbereitung für eine Eigenbau SSB TRX).
Mehr Details gibt's hier:
http://endorphino.de/projects/electronics/timemanipulator/index.html
-----------------------------------------------
Ich weise ausdrücklich darauf hin, daß der Bau von Sendeanlagen lizenzierten Funkamateuren vorbehalten ist! Der Betrieb eines solchen Gerätes an einer Antenne ist aber auch Funkamateuren gesetzlich verboten!
-----------------------------------------------
- published: 11 Jul 2010
- views: 8508
DCF77 signal reception with Conrad DCF77 module
- Order: Reorder
- Duration: 1:17
- Updated: 30 Jun 2012
- views: 4753
This video shows the output signal of the Conrad DCF77 module on an oscilloscope.
The Conrad DCF77 module (green PCB) is attached to my own DCF77 clock unit (bl...
This video shows the output signal of the Conrad DCF77 module on an oscilloscope.
The Conrad DCF77 module (green PCB) is attached to my own DCF77 clock unit (blue PCB). My DCF77 clock operation can be seen on some of my other videos.
wn.com/Dcf77 Signal Reception With Conrad Dcf77 Module
DCF77 Funkuhr Dekodieren Entschlüsseln - eflose #44
- Order: Reorder
- Duration: 3:56
- Updated: 03 May 2011
- views: 12348
DCF77 Funksignal dekodieren
in diesem Video zeige ich wie man ein dcf-77 funkuhrsignal mit mit einen dcf77 Empfänger die 100 bis 200 ms Pulse hörbar machen und...
DCF77 Funksignal dekodieren
in diesem Video zeige ich wie man ein dcf-77 funkuhrsignal mit mit einen dcf77 Empfänger die 100 bis 200 ms Pulse hörbar machen und dann mit Stift und Papier entschlüsseln / decodieren kann. Der dcf-77 Sender ist ein von einer Atomuhr gesteuerter Langwellensender in Mainflingen bei Frankfurt am Main der die meisten Funkuhren in Europa mit der Uhrzeit versorgt. Die Reichweite des Senders beträgt etwa 2000 km.
Übertragen werden die Minuten, Stunden, Kalendertag, Wochentag, Monat, Jahr, ab und zu ein Bit ob eine Schaltsekunden eingefügt wird und ein Bit zur Anzeige ob Sommerzeit oder Winterzeit übertragen wird.
Facebook Elektronik Diskussionsgruppe: https://www.facebook.com/groups/Eflose
wn.com/Dcf77 Funkuhr Dekodieren Entschlüsseln Eflose 44
DCF77 Funksignal dekodieren
in diesem Video zeige ich wie man ein dcf-77 funkuhrsignal mit mit einen dcf77 Empfänger die 100 bis 200 ms Pulse hörbar machen und dann mit Stift und Papier entschlüsseln / decodieren kann. Der dcf-77 Sender ist ein von einer Atomuhr gesteuerter Langwellensender in Mainflingen bei Frankfurt am Main der die meisten Funkuhren in Europa mit der Uhrzeit versorgt. Die Reichweite des Senders beträgt etwa 2000 km.
Übertragen werden die Minuten, Stunden, Kalendertag, Wochentag, Monat, Jahr, ab und zu ein Bit ob eine Schaltsekunden eingefügt wird und ein Bit zur Anzeige ob Sommerzeit oder Winterzeit übertragen wird.
Facebook Elektronik Diskussionsgruppe: https://www.facebook.com/groups/Eflose
- published: 03 May 2011
- views: 12348
OLED DCF77 Demo - radio controlled clock
- Order: Reorder
- Duration: 2:37
- Updated: 17 Oct 2009
- views: 8955
OLED Funkuhr mit einem ATmega168 und einem einfachen Zeitsignal-Empfängermodul.
Audiovisuelle Live-Demonstration des DCF77 Protokolls.
Hardware: Blutzucker...
OLED Funkuhr mit einem ATmega168 und einem einfachen Zeitsignal-Empfängermodul.
Audiovisuelle Live-Demonstration des DCF77 Protokolls.
Hardware: Blutzuckermessgerät ca. 7€ + 5€ DCF-Modul
DCF77 Receiver:
Radio controlled clock 77.5 kHz 50kW Mainflingen near Frankfurt / Germany
Oled-Display-Recycling:
http://home.arcor.de/wehrsdorf/Oled-Display-Recycling.html
wn.com/Oled Dcf77 Demo Radio Controlled Clock
OLED Funkuhr mit einem ATmega168 und einem einfachen Zeitsignal-Empfängermodul.
Audiovisuelle Live-Demonstration des DCF77 Protokolls.
Hardware: Blutzuckermessgerät ca. 7€ + 5€ DCF-Modul
DCF77 Receiver:
Radio controlled clock 77.5 kHz 50kW Mainflingen near Frankfurt / Germany
Oled-Display-Recycling:
http://home.arcor.de/wehrsdorf/Oled-Display-Recycling.html
- published: 17 Oct 2009
- views: 8955
Decodifica segnale DCF77 Mainflingen - Germania
- Order: Reorder
- Duration: 12:53
- Updated: 22 Feb 2014
- views: 1430
Semplice video sulla ricezione del segnale orario DCF77 emesso della stazione tedesca situata a Mainflingen, vicino a Francoforte, in Germania. Il segnale è cos...
Semplice video sulla ricezione del segnale orario DCF77 emesso della stazione tedesca situata a Mainflingen, vicino a Francoforte, in Germania. Il segnale è costitutito da una portante non modulata a 77.5 KHz. Pertanto è ricevibile nei modi USB, LSB e CW.
wn.com/Decodifica Segnale Dcf77 Mainflingen Germania
Semplice video sulla ricezione del segnale orario DCF77 emesso della stazione tedesca situata a Mainflingen, vicino a Francoforte, in Germania. Il segnale è costitutito da una portante non modulata a 77.5 KHz. Pertanto è ricevibile nei modi USB, LSB e CW.
- published: 22 Feb 2014
- views: 1430
DCF77 mit Fledermausdetektor
- Order: Reorder
- Duration: 2:04
- Updated: 03 Mar 2013
- views: 2611
Statt des Mikrofons wird eine Spule (Festinduktivität 10 mH) angeschlossen. Das Gerät empfängt dann magnetische Wechselfelder, darunter das DCF77-Signal bei 77,...
Statt des Mikrofons wird eine Spule (Festinduktivität 10 mH) angeschlossen. Das Gerät empfängt dann magnetische Wechselfelder, darunter das DCF77-Signal bei 77,5 kHz.
http://www.elektronik-labor.de/Lernpakete/Fledermaus3.html
wn.com/Dcf77 Mit Fledermausdetektor
DCF77 Master Clock Chiming and Pulsing
- Order: Reorder
- Duration: 1:01
- Updated: 13 Sep 2014
- views: 3023
1 minute 4K Ultra HD video showing my Master Clock Mk2 pulsing and chiming the hours at 10 o'clock.
The clock uses the DCF77 radio clock in Germany to keep per...
1 minute 4K Ultra HD video showing my Master Clock Mk2 pulsing and chiming the hours at 10 o'clock.
The clock uses the DCF77 radio clock in Germany to keep perfect time. The clock can drive 1 sec alternating and 30 second slave clocks and provides 1min, 1 hour and 24 hour pulses. The clock also provides chime pulses for quarter hour and hours to drive electronic or electromechanical chimes.
See http://home.btconnect.com/brettoliver1/Master_Clock_MK2/Master_Clock_MK2.htm for full construction details.
wn.com/Dcf77 Master Clock Chiming And Pulsing
1 minute 4K Ultra HD video showing my Master Clock Mk2 pulsing and chiming the hours at 10 o'clock.
The clock uses the DCF77 radio clock in Germany to keep perfect time. The clock can drive 1 sec alternating and 30 second slave clocks and provides 1min, 1 hour and 24 hour pulses. The clock also provides chime pulses for quarter hour and hours to drive electronic or electromechanical chimes.
See http://home.btconnect.com/brettoliver1/Master_Clock_MK2/Master_Clock_MK2.htm for full construction details.
- published: 13 Sep 2014
- views: 3023
Receiving DCF77 time on RPi
- Order: Reorder
- Duration: 0:32
- Updated: 01 May 2013
- views: 2069
This little fella (a Raspberry Pi single board computer) is going to be my private network time server, to be used by all network devices in my private network....
This little fella (a Raspberry Pi single board computer) is going to be my private network time server, to be used by all network devices in my private network. The idea is to use the DCF77 longwave time signal transmitted from Mainflingen in Germany as a long term time reference, and a real-time clock module with battery backup as a reliable local time reference.
Since I live at a fairly long distance from the DCF transmitter (I live in Stockholm, Sweden), the time signal is somewhat unreliable, much depending on weather and time of day. Generally the time signal can be received cleanly at night, but not in daytime. Anyway I just want to sync the real-time clock every now and then, so it is sufficient.
The prototyping board ontop of the RPi is an interface between the DCF77 antenna/receiver and the GPIO connector on the RPi. Ontop of that is the real-time clock module (the little green board with the battery). It is connected to the GPIO pins via a 6-pin passthrough connector on the back (top) side of the prototype board.
The blinking LED indicates the reception of DCF77 time pulses, for debugging. I know it's much easier to just use a GPS module as a reliable time reference, but that just wouldn't be as fun as building a DCF77 decoder, would it? :)
wn.com/Receiving Dcf77 Time On Rpi
This little fella (a Raspberry Pi single board computer) is going to be my private network time server, to be used by all network devices in my private network. The idea is to use the DCF77 longwave time signal transmitted from Mainflingen in Germany as a long term time reference, and a real-time clock module with battery backup as a reliable local time reference.
Since I live at a fairly long distance from the DCF transmitter (I live in Stockholm, Sweden), the time signal is somewhat unreliable, much depending on weather and time of day. Generally the time signal can be received cleanly at night, but not in daytime. Anyway I just want to sync the real-time clock every now and then, so it is sufficient.
The prototyping board ontop of the RPi is an interface between the DCF77 antenna/receiver and the GPIO connector on the RPi. Ontop of that is the real-time clock module (the little green board with the battery). It is connected to the GPIO pins via a 6-pin passthrough connector on the back (top) side of the prototype board.
The blinking LED indicates the reception of DCF77 time pulses, for debugging. I know it's much easier to just use a GPS module as a reliable time reference, but that just wouldn't be as fun as building a DCF77 decoder, would it? :)
- published: 01 May 2013
- views: 2069
DCF77 signal reception
- Order: Reorder
- Duration: 0:24
- Updated: 21 Jun 2012
- views: 1978
This is a little project I made during the summer of 2011 to learn about DCF77.
For DCF77 reception a Conrad antenna module was used.
The electronics, PCB and S...
This is a little project I made during the summer of 2011 to learn about DCF77.
For DCF77 reception a Conrad antenna module was used.
The electronics, PCB and SW design was done by me using a custum, chip on glass LCD DOGL128 and PIC18F23K20 controller.
The video shows how a date and time updated when a DCF77 full frame received.
wn.com/Dcf77 Signal Reception
This is a little project I made during the summer of 2011 to learn about DCF77.
For DCF77 reception a Conrad antenna module was used.
The electronics, PCB and SW design was done by me using a custum, chip on glass LCD DOGL128 and PIC18F23K20 controller.
The video shows how a date and time updated when a DCF77 full frame received.
- published: 21 Jun 2012
- views: 1978
Arduino DCF77 Analyzer Clock
- Order: Reorder
- Duration: 1:17
- Updated: 10 Dec 2015
- views: 118
Arduino powered DCF77 Analyzer Clock.
Uses 2 x Atmega328 microprocessors 1 for the Analyzer & displays and 1 for the DCF77 Super Filter.
Displays use 3 x 8x8 Do...
Arduino powered DCF77 Analyzer Clock.
Uses 2 x Atmega328 microprocessors 1 for the Analyzer & displays and 1 for the DCF77 Super Filter.
Displays use 3 x 8x8 Dot matrix and 4 are 8 digit 7 segment display modules.
Full details home.btconnect.com/brettoliver1/DCF77_Analyzer_Clock/DCF77_Analyzer_Clock.htm
wn.com/Arduino Dcf77 Analyzer Clock
Arduino powered DCF77 Analyzer Clock.
Uses 2 x Atmega328 microprocessors 1 for the Analyzer & displays and 1 for the DCF77 Super Filter.
Displays use 3 x 8x8 Dot matrix and 4 are 8 digit 7 segment display modules.
Full details home.btconnect.com/brettoliver1/DCF77_Analyzer_Clock/DCF77_Analyzer_Clock.htm
- published: 10 Dec 2015
- views: 118
DCF77 clock
- Order: Reorder
- Duration: 2:59
- Updated: 07 Mar 2013
- views: 2728
DCF77 clock with Atmel Atmega32
DCF77 clock with Atmel Atmega32
wn.com/Dcf77 Clock
Experimenteller DCF77-Zeitzeichen-Empfang
- Order: Reorder
- Duration: 1:54
- Updated: 18 Oct 2011
- views: 2221
http://elektronikbasteln.pl7.de/laengstwellen-konverter-von-9-bis-500-khz-mit-einem-so42p.html
DCF77-Zeitzeichen-Empfang aus über 1000 km Entfernung. Das Ant...
http://elektronikbasteln.pl7.de/laengstwellen-konverter-von-9-bis-500-khz-mit-einem-so42p.html
DCF77-Zeitzeichen-Empfang aus über 1000 km Entfernung. Das Antennensignal von einem 30 m langen Draht gelangt in einen Längstwellen-Konverter mit einem SO42P, welcher das Eingangssignal 10 MHz heraufmischt, um vom FT-747GX auf 10,0775 MHz empfangen werden zu können. Danach gelangt dieses Signal nach dem Durchlaufen mehrerer ZF-Stufen zum 12-kHz-Zwischenfrequenz-Ausgang des dafür umgebauten FT-747GX. Dieses 12-kHz-Signal wird über ein Soundkarten-Interface der Soundkarte des PC zugeführt. Dort dekodiert das Programm SoDiRa schließlich das Signal zur Darstellung der Uhrzeit und des Datums. Sicherlich geht es auch einfacher. Es ist eben nur ein Experiment.
wn.com/Experimenteller Dcf77 Zeitzeichen Empfang
http://elektronikbasteln.pl7.de/laengstwellen-konverter-von-9-bis-500-khz-mit-einem-so42p.html
DCF77-Zeitzeichen-Empfang aus über 1000 km Entfernung. Das Antennensignal von einem 30 m langen Draht gelangt in einen Längstwellen-Konverter mit einem SO42P, welcher das Eingangssignal 10 MHz heraufmischt, um vom FT-747GX auf 10,0775 MHz empfangen werden zu können. Danach gelangt dieses Signal nach dem Durchlaufen mehrerer ZF-Stufen zum 12-kHz-Zwischenfrequenz-Ausgang des dafür umgebauten FT-747GX. Dieses 12-kHz-Signal wird über ein Soundkarten-Interface der Soundkarte des PC zugeführt. Dort dekodiert das Programm SoDiRa schließlich das Signal zur Darstellung der Uhrzeit und des Datums. Sicherlich geht es auch einfacher. Es ist eben nur ein Experiment.
- published: 18 Oct 2011
- views: 2221
DCF77 with 100 mt long wire
- Order: Reorder
- Duration: 1:48
- Updated: 10 Jul 2008
- views: 8274
Listening Time Signals Station DCF77 on 77,5 kHz with homemade converter (IF 28 MHz) and 100 mt long wire during LF/VLF LW & MW Field Day.
Listening Time Signals Station DCF77 on 77,5 kHz with homemade converter (IF 28 MHz) and 100 mt long wire during LF/VLF LW & MW Field Day.
wn.com/Dcf77 With 100 Mt Long Wire
DCF77 leap second on oscilloscope
- Order: Reorder
- Duration: 0:17
- Updated: 02 Jan 2009
- views: 3507
Insertion of leap second into UTC observed on oscilloscope fed by DCF77 signal. Compared to DCF77 adjusted house clock (not reflecting the leap second as obviou...
Insertion of leap second into UTC observed on oscilloscope fed by DCF77 signal. Compared to DCF77 adjusted house clock (not reflecting the leap second as obvious).
The DCF77 signal diminishes at beginning of each second, except the last second of a minute. Usually, this is the 60th second (hh.mm.59). When the leap second is inserted, diminution occurs at hh.mm.59 and it is missing in the 61th second (hh.mm.60).
Upper video shows normal 60 sec. long minute, whereas the bottom video shows the minute with extra leap second. We can see, that diminution (blink) is first missing in upper video, in the next second, it is missing in the bottom video. Then, the bottom time is delayed by the extra second, and house clock shows wrong time, they are one sec. ahead until their readjustment occurs.
More info: http://duch.cz/dcf77/prestupna/leap-second.html
wn.com/Dcf77 Leap Second On Oscilloscope
Insertion of leap second into UTC observed on oscilloscope fed by DCF77 signal. Compared to DCF77 adjusted house clock (not reflecting the leap second as obvious).
The DCF77 signal diminishes at beginning of each second, except the last second of a minute. Usually, this is the 60th second (hh.mm.59). When the leap second is inserted, diminution occurs at hh.mm.59 and it is missing in the 61th second (hh.mm.60).
Upper video shows normal 60 sec. long minute, whereas the bottom video shows the minute with extra leap second. We can see, that diminution (blink) is first missing in upper video, in the next second, it is missing in the bottom video. Then, the bottom time is delayed by the extra second, and house clock shows wrong time, they are one sec. ahead until their readjustment occurs.
More info: http://duch.cz/dcf77/prestupna/leap-second.html
- published: 02 Jan 2009
- views: 3507
Receiving the DCF77 signal in Thessaloniki, Greece
- Order: Reorder
- Duration: 0:22
- Updated: 17 Jan 2012
- views: 2457
Receiving the DCF77 signal from Frankfurt
Distance between Frankfurt and Thessaloniki approx. 1500 km
Receiver datasheet : http://www.pvelectronics.co.uk/...
Receiving the DCF77 signal from Frankfurt
Distance between Frankfurt and Thessaloniki approx. 1500 km
Receiver datasheet : http://www.pvelectronics.co.uk/rftime/SYM-RFT-XX.pdf
More info : http://en.wikipedia.org/wiki/DCF77
wn.com/Receiving The Dcf77 Signal In Thessaloniki, Greece
Mystery time signal station on 77.5 kHz (no it's not DCF77)
- Order: Reorder
- Duration: 2:43
- Updated: 13 Jan 2014
- views: 1864
Since I started to explore longwave reception I have been hearing this time signal station on 77.5 kHz. The station is coming in 24/7 with readable signals here...
Since I started to explore longwave reception I have been hearing this time signal station on 77.5 kHz. The station is coming in 24/7 with readable signals here in Taiwan. During the last 20 seconds of each minute there is a variation of dots and dashes, which is clearly different from other stations, including DCF77 which also broadcasts on 77.5 kHz.
Any reception reports from others on this station would be appreciated. On my website you can find more recordings and screen shots (just google my call sign).
73 de Hans
BX2ABT / PA2BX
wn.com/Mystery Time Signal Station On 77.5 Khz (No It's Not Dcf77)
Since I started to explore longwave reception I have been hearing this time signal station on 77.5 kHz. The station is coming in 24/7 with readable signals here in Taiwan. During the last 20 seconds of each minute there is a variation of dots and dashes, which is clearly different from other stations, including DCF77 which also broadcasts on 77.5 kHz.
Any reception reports from others on this station would be appreciated. On my website you can find more recordings and screen shots (just google my call sign).
73 de Hans
BX2ABT / PA2BX
- published: 13 Jan 2014
- views: 1864
DCF77 Frankfurt Radio Controlled Atomic Time Signal LCD
- Order: Reorder
- Duration: 6:16
- Updated: 31 Jul 2009
- views: 14926
My home brewed DCF77 Radio Controlled Clock, incorporating 16F873 PIC and 20 MHz stability crystal using veroboard, decoupling caps etc, Red LED=Parity Error, Y...
My home brewed DCF77 Radio Controlled Clock, incorporating 16F873 PIC and 20 MHz stability crystal using veroboard, decoupling caps etc, Red LED=Parity Error, Yellow LED= 0 bit, Green LED=1 bit , A=no pulses received for 2 seconds, LED display=16x2 HD44780 Hitachi. The jumper switch is for plus or minus hours. I will try to answer questions but expect a delay due to commitments. Thanks to my friend Tony who did all the hard work.
wn.com/Dcf77 Frankfurt Radio Controlled Atomic Time Signal Lcd
My home brewed DCF77 Radio Controlled Clock, incorporating 16F873 PIC and 20 MHz stability crystal using veroboard, decoupling caps etc, Red LED=Parity Error, Yellow LED= 0 bit, Green LED=1 bit , A=no pulses received for 2 seconds, LED display=16x2 HD44780 Hitachi. The jumper switch is for plus or minus hours. I will try to answer questions but expect a delay due to commitments. Thanks to my friend Tony who did all the hard work.
- published: 31 Jul 2009
- views: 14926
Digital clock based on DCF77
- Order: Reorder
- Duration: 9:03
- Updated: 03 Apr 2013
- views: 3092
Firstly - You must excuse my English! - Ok? ;)
Precise clock synchronization will be held at 2:37 min.!
Testmod (clock sound) start at 4:37!
The lengh of this v...
Firstly - You must excuse my English! - Ok? ;)
Precise clock synchronization will be held at 2:37 min.!
Testmod (clock sound) start at 4:37!
The lengh of this video is terrible(I know that), but it demonstrates many things: adjusting side trimmers for LCD contrast, Gong volume, tone changing and finally autovolume for Gong (Gong is in daylight loud and quiet when it's dark).
Gong (IC SAE800) sounds on every full minute in testmod - without testmod sounds every half hour and every full hour!
Description:
Digital clock with 2x16 char LC-Display - based on DCF77 time information with microcontroller PIC16F628A and Gong IC SAE800 - I thank to author (Frits K. Raalte) for the circuit scheme and program (BASIC), published on his website:
http://www.picbasic.nl/
I used this work for my graduation project.
Device in this video is in state without case and with the old version of v-regulator (7805) cooler.
For more info visit the website with this concrete circuit:
http://www.picbasic.nl/dcf77_klok_uk.htm
wn.com/Digital Clock Based On Dcf77
Firstly - You must excuse my English! - Ok? ;)
Precise clock synchronization will be held at 2:37 min.!
Testmod (clock sound) start at 4:37!
The lengh of this video is terrible(I know that), but it demonstrates many things: adjusting side trimmers for LCD contrast, Gong volume, tone changing and finally autovolume for Gong (Gong is in daylight loud and quiet when it's dark).
Gong (IC SAE800) sounds on every full minute in testmod - without testmod sounds every half hour and every full hour!
Description:
Digital clock with 2x16 char LC-Display - based on DCF77 time information with microcontroller PIC16F628A and Gong IC SAE800 - I thank to author (Frits K. Raalte) for the circuit scheme and program (BASIC), published on his website:
http://www.picbasic.nl/
I used this work for my graduation project.
Device in this video is in state without case and with the old version of v-regulator (7805) cooler.
For more info visit the website with this concrete circuit:
http://www.picbasic.nl/dcf77_klok_uk.htm
- published: 03 Apr 2013
- views: 3092
DCF77
- Order: Reorder
- Duration: 0:08
- Updated: 08 Jan 2014
- views: 182
The low frequency T-aerial antennas of DCF77 in Mainflingen (Germany);
date 08/01/2014; Fr 77,5 kHZ; UTC 06:51/06:53; SIGNAL/SINPO 0 (only audio); antenna Mini ...
The low frequency T-aerial antennas of DCF77 in Mainflingen (Germany);
date 08/01/2014; Fr 77,5 kHZ; UTC 06:51/06:53; SIGNAL/SINPO 0 (only audio); antenna Mini whip; rx Yaesu FT 950.
My location is Maddaloni (CE) ITALY; Loc JN71EA.
wn.com/Dcf77
"Connect" to an atomic clock in space! GPS, DCF77 - DCF77 reception
- Order: Reorder
- Duration: 1:24
- Updated: 07 Jul 2014
- views: 1055
This is a demonstration of the DCF77 signal reception and clock synchronization.
For more details about this project visit:
http://hackaday.io/project/1353-%22C...
This is a demonstration of the DCF77 signal reception and clock synchronization.
For more details about this project visit:
http://hackaday.io/project/1353-%22Connect-to%22-an-ATOMIC-CLOCK!-
wn.com/Connect To An Atomic Clock In Space Gps, Dcf77 Dcf77 Reception
Receiving DCF77 station on 77,5 KHz in Macedonia with RTL-SDR + Upconverter
- Order: Reorder
- Duration: 0:33
- Updated: 08 Dec 2014
- views: 591
Receiving DCF77 station on 77,5 KHz in Macedonia with RTL-SDR + Upconverter and comparison between Mini-Whip vs Delta Loop 33m antenna
Receiving DCF77 station on 77,5 KHz in Macedonia with RTL-SDR + Upconverter and comparison between Mini-Whip vs Delta Loop 33m antenna
wn.com/Receiving Dcf77 Station On 77,5 Khz In Macedonia With Rtl Sdr Upconverter
DCF77 VFD Clock
- Order: Reorder
- Duration: 2:41
- Updated: 09 Jul 2014
- views: 1574
LCD DCF77 Master Bracket Clock
- Order: Reorder
- Duration: 0:53
- Updated: 04 Dec 2013
- views: 3406
Using the DCF77 signal from Germany the clock uses an Arduino 328 chip to decode and display time on a 4x20 white on blue LCD display. The clock also displays t...
Using the DCF77 signal from Germany the clock uses an Arduino 328 chip to decode and display time on a 4x20 white on blue LCD display. The clock also displays time on a skeletal analogue dial.
The clock also sends pulses for driving slave displays including 1sec, 5sec,10sec, 15sec, 20sec,30sec, 1min, 1 hour, 1day and quartz clock motor alternating 1 sec pulses.
wn.com/Lcd Dcf77 Master Bracket Clock
Using the DCF77 signal from Germany the clock uses an Arduino 328 chip to decode and display time on a 4x20 white on blue LCD display. The clock also displays time on a skeletal analogue dial.
The clock also sends pulses for driving slave displays including 1sec, 5sec,10sec, 15sec, 20sec,30sec, 1min, 1 hour, 1day and quartz clock motor alternating 1 sec pulses.
- published: 04 Dec 2013
- views: 3406
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9:57
Time Manipulator - DCF77 time signal transmitter [Zeitmanipulator - DCF77 Zeitzeichensender]
Perfoming a time travel using the TIME MANIPULATOR (VLF 77.5 Khz DCF77 time signal transmi...
published: 11 Jul 2010
Time Manipulator - DCF77 time signal transmitter [Zeitmanipulator - DCF77 Zeitzeichensender]
Time Manipulator - DCF77 time signal transmitter [Zeitmanipulator - DCF77 Zeitzeichensender]
- Report rights infringement
- published: 11 Jul 2010
- views: 8508
1:17
DCF77 signal reception with Conrad DCF77 module
This video shows the output signal of the Conrad DCF77 module on an oscilloscope.
The Conr...
published: 30 Jun 2012
DCF77 signal reception with Conrad DCF77 module
DCF77 signal reception with Conrad DCF77 module
- Report rights infringement
- published: 30 Jun 2012
- views: 4753
3:56
DCF77 Funkuhr Dekodieren Entschlüsseln - eflose #44
DCF77 Funksignal dekodieren
in diesem Video zeige ich wie man ein dcf-77 funkuhrsignal mi...
published: 03 May 2011
DCF77 Funkuhr Dekodieren Entschlüsseln - eflose #44
DCF77 Funkuhr Dekodieren Entschlüsseln - eflose #44
- Report rights infringement
- published: 03 May 2011
- views: 12348
2:37
OLED DCF77 Demo - radio controlled clock
OLED Funkuhr mit einem ATmega168 und einem einfachen Zeitsignal-Empfängermodul.
Audiovis...
published: 17 Oct 2009
OLED DCF77 Demo - radio controlled clock
OLED DCF77 Demo - radio controlled clock
- Report rights infringement
- published: 17 Oct 2009
- views: 8955
12:53
Decodifica segnale DCF77 Mainflingen - Germania
Semplice video sulla ricezione del segnale orario DCF77 emesso della stazione tedesca situ...
published: 22 Feb 2014
Decodifica segnale DCF77 Mainflingen - Germania
Decodifica segnale DCF77 Mainflingen - Germania
- Report rights infringement
- published: 22 Feb 2014
- views: 1430
2:04
DCF77 mit Fledermausdetektor
Statt des Mikrofons wird eine Spule (Festinduktivität 10 mH) angeschlossen. Das Gerät empf...
published: 03 Mar 2013
DCF77 mit Fledermausdetektor
DCF77 mit Fledermausdetektor
- Report rights infringement
- published: 03 Mar 2013
- views: 2611
1:01
DCF77 Master Clock Chiming and Pulsing
1 minute 4K Ultra HD video showing my Master Clock Mk2 pulsing and chiming the hours at 10...
published: 13 Sep 2014
DCF77 Master Clock Chiming and Pulsing
DCF77 Master Clock Chiming and Pulsing
- Report rights infringement
- published: 13 Sep 2014
- views: 3023
0:32
Receiving DCF77 time on RPi
This little fella (a Raspberry Pi single board computer) is going to be my private network...
published: 01 May 2013
Receiving DCF77 time on RPi
Receiving DCF77 time on RPi
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- published: 01 May 2013
- views: 2069
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DCF77 signal reception
This is a little project I made during the summer of 2011 to learn about DCF77.
For DCF77 ...
published: 21 Jun 2012
DCF77 signal reception
DCF77 signal reception
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- published: 21 Jun 2012
- views: 1978
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Arduino DCF77 Analyzer Clock
Arduino powered DCF77 Analyzer Clock.
Uses 2 x Atmega328 microprocessors 1 for the Analyze...
published: 10 Dec 2015
Arduino DCF77 Analyzer Clock
Arduino DCF77 Analyzer Clock
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- published: 10 Dec 2015
- views: 118
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DCF77 clock
DCF77 clock with Atmel Atmega32
published: 07 Mar 2013
DCF77 clock
DCF77 clock
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- published: 07 Mar 2013
- views: 2728
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Experimenteller DCF77-Zeitzeichen-Empfang
http://elektronikbasteln.pl7.de/laengstwellen-konverter-von-9-bis-500-khz-mit-einem-so42p....
published: 18 Oct 2011
Experimenteller DCF77-Zeitzeichen-Empfang
Experimenteller DCF77-Zeitzeichen-Empfang
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- published: 18 Oct 2011
- views: 2221
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DCF77 with 100 mt long wire
Listening Time Signals Station DCF77 on 77,5 kHz with homemade converter (IF 28 MHz) and 1...
published: 10 Jul 2008
DCF77 with 100 mt long wire
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DCF77 leap second on oscilloscope
Insertion of leap second into UTC observed on oscilloscope fed by DCF77 signal. Compared t...
published: 02 Jan 2009
DCF77 leap second on oscilloscope
DCF77 leap second on oscilloscope
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- published: 02 Jan 2009
- views: 3507
Time Manipulator - DCF77 time signal transmitter [...
DCF77 signal reception with Conrad DCF77 module...
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Receiving DCF77 time on RPi...
DCF77 signal reception...
Arduino DCF77 Analyzer Clock...
DCF77 clock...
Experimenteller DCF77-Zeitzeichen-Empfang...
DCF77 with 100 mt long wire...
DCF77 leap second on oscilloscope...
Receiving the DCF77 signal in Thessaloniki, Greece...
Mystery time signal station on 77.5 kHz (no it's n...
DCF77 Frankfurt Radio Controlled Atomic Time Signa...
Digital clock based on DCF77...
DCF77...
"Connect" to an atomic clock in space! GPS, DCF77 ...
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DCF77 VFD Clock...
LCD DCF77 Master Bracket Clock...
photo: AP / Shakh Aivazov
Pentagon Silent Over Report Questioning If Air Strike Killed Top Islamic State Commander
Edit WorldNews.com 10 Mar 2016
A recent U.S. Defense Department claim an air strike “likely” killed a top Islamic State commander is untrue, a Reuters report on Inquistr said Thursday. The U.S ... The report is a direct contradiction with the U.S. Defense Department’s statement the group’s “minister of war” was “likely” killed when the attack occurred....
photo: GFDL / Nevit Dilmen
T-Rex Fossil Skull 'Discovery' on Mars Excites UFO Community On Earth
Edit WorldNews.com 09 Mar 2016
The UFO community is in a self-proclaimed state of gleeful commotion with the bizarre announcement by UFO blogger Scott C. Waring of a Tyrannosaurus Rex-type dinosaur discovered in an image of the Martian surface snapped by NASA’s Curiously rover, an Inquisitr report said Wednesday ... Waring announced the “discovery” of the fossilized skull of a T. Rex-type dinosaur in a Feb. 11 blog post ... – WN.com, Jack Durschlag....
photo: AP / Gerry Broome
The question Trump can't dodge in Florida
Edit CNN 10 Mar 2016
(CNN)On Thursday night, the remaining Republican presidential candidates -- led, of course, by Donald Trump -- will gather in the Miami area for yet another debate. South Florida, whether or not it's stated, is a crucial front line for climate change. And my hope is that the candidates, particularly Trump, won't be able to keep dismissing questions about this issue. For Trump, it's not only rhetoric and votes that are at stake ... Replay ... ....
photo: AP / Thibault Camus
Backlash: France’s New Hard Line on Terror
Edit Al Jazeera 10 Mar 2016
In 2015, two devastating attacks, claimed by the Islamic State of Iraq and the Levant (ISIL, also known as ISIS) killed 147 people in Paris. Nine of the 13 perpetrators were born in France, prompting the government to launch a national "de-radicalisation programme" and introduce a series of extra-judiciary measures against those considered a threat to national security ... By Victoria Baux and Charles Emptaz ... MORE TO THIS STORY ... Source ... ....
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Casio Release World’s First G-SHOCK That Receives both of GPS Signals and Radio Wave Time-Calibration Signals (Casio Italia Srl)
Edit noodls 03 Sep 2014
(Source. Casio Italia Srl). COMUNICATO STAMPA. 02.09.2014. Casio Release World's First G-SHOCK That Receives both of GPS Signals and Radio Wave Time-Calibration Signals. Keeps Accurate Time in the Harshest of Environments. TOKYO, September, 2014 - Casio Computer Co., Ltd ... *1 As of June 30, 2014 based on survey by Casio ... The watch offers unsurpassed toughness combined with the world's first hybrid time keeping system ... 77.5 kHz (DCF77 ... China)....
Casio Release World’s First G-SHOCK That Receives both of GPS Signals and Radio Wave Time-Calibration Signals (Casio España SL)
Edit noodls 03 Sep 2014
(Source. Casio España SL). NOTA DE PRENSA. 03.09.2014. Casio Release World's First G-SHOCK That Receives both of GPS Signals and Radio Wave Time-Calibration Signals. Keeps Accurate Time in the Harshest of Environments. TOKYO, September, 2014 - Casio Computer Co., Ltd ... *1 As of June 30, 2014 based on survey by Casio ... The watch offers unsurpassed toughness combined with the world's first hybrid time keeping system ... Construction ... 77.5 kHz (DCF77....
Casio Release World’s First G-SHOCK That Receives both of GPS Signals and Radio Wave Time-Calibration Signals (Casio France SA)
Edit noodls 03 Sep 2014
(Source. Casio France SA). COMMUNIQUÉ DE PRESSE. 03.09.2014. Casio Release World's First G-SHOCK That Receives both of GPS Signals and Radio Wave Time-Calibration Signals. Keeps Accurate Time in the Harshest of Environments. TOKYO, September, 2014 - Casio Computer Co., Ltd ... *1 As of June 30, 2014 based on survey by Casio ... The watch offers unsurpassed toughness combined with the world's first hybrid time keeping system ... 77.5 kHz (DCF77 ... China)....
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