Greetings fellow Elecrafters,
Being very interested in Wayne's initial comments regarding his experiments, and because I share his noise problems here; I've had an initial play. A brief summary of my initial results are as follows: I was copying VP8SGI on 10110KHZ around about 1000UTC- they had a very fluttery polar signal on a rather "hissy" band with the usual bursts of QRN as well. (Both VP8STI & VP8SGI are very difficult for us ZLs, as it's a bad polar path...) I'd faked my 6KHz filter to operate at 300Hz width, and it did help quite a bit with the NB activated, to clean the signal up. For me, the sweet point seems to be t2-6, and the readability of the signal was much improved over using my 400Hz filter at 400Hz width, with or without noise blanking or noise reduction. I also listened to some poor signals on 40 metres in the VP8's pile up there, and found exactly the same results. In fact, some signals were improved from being audible but barely readable to being quite good copy, and again, t2-6 seemed to be best. On 80 metres this morning, digging out the Europeans at the bottom of the band, t3-2 seemed best. I'll continue to play, it's certainly worth investigating further, even if it does mean tweaking the NB setting from time to time. I don't mind tweaking a knob or two if it lets me notch up a new one. 73, Tony, ZL2AGY. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
