[vdr] DVB-s and analog STB on the same sat cable

[Ondrej Wisniewski <ondrej.wisniewski@eri.ericsson.se>]

Hello everyone,

I want to use my old analog STB and the VDR with DVB-s connected to the same 
cable from the dish. I don't need to switch on both receivers at the same time, 
so I came up with a low cost solution. Since neither the DVB-s (rev.1.6) nor the 
analog receiver have a loop through connection I simply split the signal from 
the LNB. However I don't use an actual splitter but just a simple T connector. 
The guy in the SAT shop who sold this to me said it works and he never had 
problems with this solution.

              LNB
               0
               |
               |
               V
+-------+   +--+--+   +-------+
| DVB-s |<--|split|-->|  STB  |
+-------+   +-----+   +-------+

But since I read quite often here in the list the the DVB-s cards are somewhat 
"fragile" I'm a bit afraid that when switching on the analog receiver I will get 
the 13V/18V tension to the input of the DVB-s card. Could that hurt the tuner on 
the card ? And what do real splitters do ? Do they implement some sort of 
protection (diods) ?

Thank you,
Ondrej ...





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