Most LNB's would have a gain of about 60 dB, So I would guess that +23dBm to +26dBm was the signal level going into the HackRF One with a maximum safe input across the entire spectrum of -5dBm (LNA on) [ https://github.com/mossmann/hackrf/wiki/HackRF-One#receive-power ]. Best to leave the LNA off at all times, unless you have checked the entire spectrum is not going to damage it. Someone already damaged theirs HackRF One by using a 5W handheld held an inch from it.
Most likely, U13 needs to be replaced. It's an MGA-81563-TR1G. On 03/12/2014 20:39, Rémi Laisné wrote: > Hello, > > First, I'm not here for complaining. > > I plugged hackrf to lnb output of sat receiver and it seems hackrf > frontend didn't like it.. (not 18v output though..) > When i switch RF gain from 0 to 14 dB signals are shown weaker than > without. > Before to repair it, do you know if another sensitive component could > have blown up because of that ? > > thanks. > > > _______________________________________________ > HackRF-dev mailing list > [email protected] > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
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