At 04:21 PM 1/1/2008, you wrote:
>I will try to reproduce that behavior. I thought to have checked >similar cases, but after your report I will spend some more time on >that. The phase delta information used to acquire lock is computed >after a dedicated low pass filter of less than 3 kHz of bandwidth, >which is reduced by a factor of at lest 10 (must check) after locking. >I guess than in your case the initial wandering of the NCO was caused >not because the carrier at 10 kHz acted as an attractor, but it was >simply a random walk, that by chance ultimately entered the capture >range of that carrier. It rest to be understood why the carrier at 1 >kHz did not attract the NCO,,,, food for investigations. > >73 Alberto I2PHD > The signal 10KHz away was about 20dB higher in amplitude if that helps. When I clicked on the spot, it immediately started heading for the wrong signal at a pretty good speed. in less than 2 seconds it was locked to the wrong signal Cecil K5NWA www.softrockradio.org www.qrpradio.com "Blessed are the cracked, for they shall let in the light."
