Television channel

A television channel is a physical or virtual channel over which a television station or television network is distributed. For example, in North America, "channel 2" refers to the broadcast or cable band of 54 to 60 MHz, with carrier frequencies of 55.25 MHz for NTSC analog video (VSB) and 59.75 MHz for analog audio (FM), or 55.31 MHz for digital ATSC (8VSB). Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider.

Depending on the multinational bandplan for a given region, analog television channels are typically 6, 7, or 8 MHz in bandwidth, and therefore television channel frequencies vary as well. Channel numbering is also different. Digital television channels are the same for legacy reasons, however through multiplexing, each physical radio frequency (RF) channel can carry several digital subchannels. On satellites, each transponder normally carries one channel, however small, independent channels can be used on each transponder, with some loss of bandwidth due to the need for guard bands between unrelated transmissions. ISDB, used in Japan and Brazil, has a similar segmented mode.

UTV

UTV may refer to:

Broadcasting

Other

Channel

Channel, channels, and similar terms may refer to:

Places

UTV (TV channel)

UTV (formerly Ulster Television) is a commercial television broadcaster in Northern Ireland owned and operated by UTV Media plc as part of the UK-wide ITV Network. Formed in November 1958 and appointed as programme contractor for the Independent Television Authority soon after, UTV was the first indigenous broadcaster in Northern Ireland

On 19 October 2015, it was announced UTV would be sold to ITV plc for £100 million.

Reception

UTV can be watched via the following methods:

Terrestrial

The main transmitters which broadcast UTV's analogue and digital signals are based at Divis transmitting station outside Belfast,Limavady transmitting station in County Londonderry and Brougher Mountain transmitting station in County Tyrone. Each transmitter has a series of relay stations.

UTV was the last of the ITV stations to cease broadcasting on analogue transmitters. The analogue signal was closed at just after 11:35 pm on Tuesday 23 October 2012.

3D modeling

In 3D computer graphics, 3D modeling (or modelling) is the process of developing a mathematical representation of any three-dimensional surface of an object (either inanimate or living) via specialized software. The product is called a 3D model. It can be displayed as a two-dimensional image through a process called 3D rendering or used in a computer simulation of physical phenomena. The model can also be physically created using 3D printing devices.

Models may be created automatically or manually. The manual modeling process of preparing geometric data for 3D computer graphics is similar to plastic arts such as sculpting.

3D modeling software is a class of 3D computer graphics software used to produce 3D models. Individual programs of this class are called modeling applications or modelers.

Models

3D models represent a physical body using a collection of points in 3D space, connected by various geometric entities such as triangles, lines, curved surfaces, etc. Being a collection of data (points and other information), 3D models can be created by hand, algorithmically (procedural modeling), or scanned.