Mattia Rossi wrote:
On Wed, 21 May 2008 17:01:22 +0300 Lauri Tischler lwgt@iki.fi wrote:
Mattia Rossi wrote:
On Wed, 21 May 2008 16:57:33 +0400 Igor goga777@bk.ru wrote:
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could you explain please how it's possible to connect 3 cards in VDR to 3 LNB's for Hotbird, Sirius, Astra for example with DiSEq-Cswitch
Hmm, using this switch ? http://www.spaun.de/?lang=en&modul=products&product=842379&produ...
Good God NO, just a simple 4 input diseqc-switch, one for each card, price something like 10-30€ each
Well, he didn't ask for the cheapest solution, he only asked how it could be done ;)
By the way, the multiple diseqc switch is ok if the number of dvb terminals is less than 4, for 4 terminal or more the multiswitch solution (it hasn't to be spaun) becomes quickly more convenient in terms of complexity and, eventually, costs
If you also need to mix terrestrial signal to the lot, then it becomes even more desirable.
... but we are digressing :)
if he has never heard of diseqc maybe some basics would be good
http://www.spaun.de/files/8df79_en_DiSEqC_for_Technicians.pdf http://www.spaun.de/?lang=en&modul=adigs
with diseqc you can address a single lnb among a limited number of lnb´s from the "electrical" point there are two ways lets say 2 sat´s and 4 receivers
1. using a lnb with 4 equivalent outputs for every satelite (you could connect a receiver to those outputs and will get all four options high, low, horizontal, vertical on every output, the receiver switches the to its 4 options, same es having 4 single lnb´s) so you would need 4 single passive diseqc switches, one for every receiver shown here: http://www.spaun.de/files/ba406_de_ske11s133.pdf
2. using lnb´s with 4 different outputs (each for h, l, hor., ver., if you connect a receiver you will only have one option at every connector, thats the difference between quad and quattro lnb´s) 2 of those with a multiswitch (input for every option for every sat) you can multiplie all 8 signals (the lnb´s don't have to be "switched" with voltage or tone to a option) and deliver on the 4 receiver outputs whats needed - this installation alway needs external power from 110/220V, usually used for 4 or more receivers
in the situation with 4 sat´s and 2-4 receivers the scenario 1. will usually cheaper