[linux-dvb] [OT] UHF masthead amp power supply location

Olaf Titz olaf at bigred.inka.de
Fri Feb 29 11:13:21 CET 2008


> http://www.youplala.net/~will/htpc/Satellite/masthead_amp-where.png

Option A is not possible, because the LNB is powered by the tuner too.
You can't have two power supplies in parallel on the same wire.

(The only solution would be to draw the power for the amp from the LNB
supply too, so you would need a suitable combiner and perhaps a
suitable amp which runs on 13-17V [AC or DC?], and you would need a
sat tuner which can deliver enough power for LNB plus amp, and never
turn it off. Unlikely that such components exist.)

Olaf



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