If I am receiving a psk31 signal at a -12 dB SNR and I can amplify the signal by 9 dBm that would make the SNR at -3 dB. If psk31 can't decode the signal then, I would suspect that there is a problem with psk31 or the receive or transmit software.
A fade of 6 to 10 dB us not all that uncommon on HF. So all you are doing is compensating for the fade. Walt/K5YFW James Wilson wrote: > > During an emergency you can pretty much do whatever it takes to get your > message through. > > But if you can't decode him turning up your power won't help. > > ----- Original Message ----- > *From:* Walt DuBose <mailto:[EMAIL PROTECTED]> > *To:* [email protected] > <mailto:[email protected]> > *Sent:* Saturday, March 10, 2007 8:10 PM > *Subject:* [digitalradio] Re: Bad PSK signals & linears > > Ok, here's a question I don't know how to answer since I don't have > the experience. > > Let's say I am running my IC-746PRO on PSK31 and passing disaster > relief traffic > in and out of a disaster area. If the station I am working on the > other end > can't decode me and I am also having trouble decoding his signal due > to a weak > signal, if I turn on my linear is that Ok or should I just give up > and wait for > better conditions? And my assumption is that the linear is properly > tuned to > amplify a PSK31 signal and my antenna and band is optimum for the > working path. > > 73, > > Walt/K5YFW > >
