Television receive-only (TVRO
) equipment for home use has, until the advent of direct-broadcast satellite (DBS) and Ku-band applications, been a derivative of professional level equipment and some minor scaling down of products intended for cable television (CATV).
ETL's range of switch matrix / routers have been used in TVRO
applications for playout centres and news gathering / sports events requiring rapid changing of occasional use services.
Working on downlink power alone assumes that we are dealing with TVRO
satellites, whereas we are dealing with a growing community of duplex communications satellites.
These systems include elements such as wide-area and local-area networks, closed-circuit television (CCTV), company phone, public address and general alarm (PAGA), television receive-only (TVRO
) and meteorological monitoring.
MZ Intaj (twofour54), in accordance with the license issued to it, and from its base in Media Zone Authority -- Abu Dhabi, will provide both full time and occasional satellite uplink services for broadcasting purposes and TVRO
(television receive only) downlink satellite services.
Coastal and marine navigational radar frequencies (2.9 to 3.65 GHz) are just below the television receive only (TVRO
) band and frequently wipe out transponders 1-5 in the TVRO
installed near harbors.
Predicting a 25-percent growth in home satellite earth stations, Channel Master's Donald Berg sees TV receive-only (TVRO
) sales of about 500,000 units this year.
"We've set up all the back office operations and on the TVRO
side (a reference to bigdish, C-band satellite TV) we have entered into agreements with the top 25 packagers," noted Sheehan, a company veteran.
In the early 1980s, C-band TVRO
LNA rates were as high as any ever seen but, at best, they only approached 10 percent of the seven-figure level at which Ku-band DBS receivers are presently being produced.
Terrestrial interference, a menacing condition disrupting clear reception on satellite television system, occurs because of other signals relayed on microwave towers traveling in the same TVRO
(television receive-only) C band (3.7 to 4.2 GHz).