Satellite Glossary
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T1
A high-speed Internet connection, allowing transfer rates of 1.5 Mbps (megabytes per second).
T3
Faster than T1, a T-3 transfers information at a rate of 45 megabytes per second.
tape play-back
A Thaicom customer, usually a broadcaster, supplies a television program on a video cassette. This is broadcast to viewers from Thaicom's teleport.
teleport
A teleport (telecommunications port) is a hub that provides access to high-bandwidth services. The Thaicom Teleport and DTH Center is a gateway for satellite transmissions, allowing broadcasters, cablecasters, and public and private network operators to outsource non-core functions. Our Teleport feeds video, data and voice to Thaicom satellites, delivering time-sensitive television and radio programming to audiences globally. It also provides remote and underdeveloped regions with high-quality Internet and network connections.
terrestrial feed
Transmission via land lines or direct (without lines). Different from a satellite feed.
time code
A digitally encoded signal that is recorded on videotape as hours : minutes : seconds : frames.
time signal
A beep, sometimes accompanied by a commercial announcement; also called a time check.
time slot
A period in a transmission schedule. A program starting and ending at specific times is given a time slot, such as 7 p.m. to 9 p.m.
time-coding
The date and time recorded on the edge of a videotape as it is being shot, to assist in editing and record keeping.
tracking
Targeting a signal source, such as a satellite, by a tracking station and following that satellite. Also, the adjustment in a VCR of the videotape playback position against the video reel heads.
trailer
A promotional announcement at the end of one program about a forthcoming program or a commercial attached to the end of a program or another commercial. Also, a short, blank strip at the end of a reel of tape.
transmission
The actual sending or beaming of the audio/video portion of the program from point to point.
transponder
In a Thaicom satellite, a device that receives a earth-based signal, shifts the signal’s frequency, amplifies the signal, and retransmits the signal to receivers on the earth.
turnaround
Receiving a signal from one satellite and re-broadcasting it to another. Thaicom satellites do this to send programs around the world.
TVRO
Television Receive Only terminals that use antenna reflectors and associated electronic equipment to receive and process television and audio communications via satellite. Typically small home systems.
tying in
A procedure for a local station to pick up or to join a network program after it has started.
TWTA (Traveling-wave-tube amplifier)
A traveling-wave tube (TWT) is an electronic device used to amplify radio frequency signals to high power, usually in an electronic assembly known as a traveling-wave tube amplifier (TWTA).
