Mattia Rossi wrote: > On Wed, 21 May 2008 17:01:22 +0300 > Lauri Tischler <lwgt@xxxxxx> wrote: > >> Mattia Rossi wrote: >>> On Wed, 21 May 2008 16:57:33 +0400 >>> Igor <goga777@xxxxx> wrote: >>> >>> --- snip ----- >>>> 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&productname=SBK9935NF >> 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 _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
