In this situation - I'm not sure the output of the hackrf will actually hurt the DVB receiver though - however, it's easy to deal with the LNB power voltage - just turn it off in the DVB menu prior to hooking up the hackrf. But separating them a few feet will most likely work as well.
> Date: Sun, 19 Apr 2015 12:59:55 +0000 > From: amaca...@galactic.demon.co.uk > To: hackrf-dev@greatscottgadgets.com > Subject: Re: [Hackrf-dev] HackRF to DVB-S receiver hardware connection. > > On Sat, Apr 18, 2015 at 02:58:53PM +0100, William Hill wrote: > > Hi, all this talk of blown amplifier stages is making me nervous, so a > > quick sanity check needed. I’m wanting to use a HackRF to generate a test > > signal and feed it into a DVB-S receiver. This is about 950MHz so the > > HackRF outputs up to 15dBm. The DVB-S unit (SatLink WS-6906) is rated > > -65dBm to -25dBm, and also sends out DC power for a LNB. The attenuator > > should block 50dB of the DC, but I’ll check with a meter. So if I feed this > > from the HackRF through a 50dB attenuator to the DVB-S unit is there > > anything obvious I’m missing before I get to the magic smoke expedited > > egress event? > > Thanks, > > Bill > > Instead of hard wiring through - feed the hackrf through your 50db attenuator > into a 50 ohm dummy load - place the receiver at the other end of the test > bench - move > rx closer until you hear a signal? > > AndyC > > > > _______________________________________________ > > HackRF-dev mailing list > > HackRF-dev@greatscottgadgets.com > > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev > > _______________________________________________ > HackRF-dev mailing list > HackRF-dev@greatscottgadgets.com > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
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