Michael Watterson's picture

Real Rado Amateurs?

This is what "Radio Amateur" should maybe be about in the 21st Century, rather than CW bugs, Echolink, DStar, collecting squares and off the shelf rigs.

From 1905 to 1950s Amateur radio was in the forefront of Innovation and Wireless Experimentation. Post Office Trunk circuit SSB applied to Radio etc after WWII.

Splitting Satellite Signals

You can't sensibly split satellite cables. Part of the Tuner is the LNB at end of Dish arm. There are four groups of channels. Signals (13V or 18V and 22kHz on/off) from the satellite receiver to the LNB select the group of Channels. In some cases you could damage a tuner.

There are two solutions to add more satellite Receivers (TV with satellite Tuner, Set-box or PVR). A Satellite PVR (Recorder) usually needs two connections for its two tuners unlike a Terrestrial PVR.

  1. LNB with more outlets. LNBs can have 1, 2(Twin) 4(Quad) or 8 (Octo) outlets.
  2. A Multiswitch: Multiswitches need a Quad or Quattro LNB usually to feed them. and are available up to 16 outlets. They can be expanded to over 2000 outlets. Also they can have additional inputs so as to work with 1, 2, 3 or 4 Satellites (positions) at the same time.