Here's another approach to using APF on weak signals in an uncrowded band.
- Turn on NR set to 5m3. You can play with this but 5m3 seems to work best here. - Set the DSP bandwidth to 1 KHz. This is a good way to search for weak signals you can't hear otherwise. The combination of NR and DSP BW drops the uncorrelated noise many dB. - Turn on the APF and carefully tune the signal to the peak of the APF passband. I typically use Spectrogram on a PC as a tuning aid throughout this whole process.
- Ride the AF and RF gain controls to minimize the ringing affect Happy hunting! Brian, K0DTJ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
