Eric, I agree and open up the bandwidth when there isn't strong adjacent signals, especially with the upper bands. But on Topband I do seem to hear better in the QRN with the filter narrowed down to 200HZ. I do wonder why the difference we both see on Topband with you using a wider setting and I am using a narrower setting? Maybe you have better receive antennas? I only have a couple Pennants, a short 3-el vert inline array that I can't get working well and a BOG. I haven't optimized the length yet on the BOG. But so far it hear fairly well. I sure do miss my long beverages when I lived in Joisey.
73, N2TK, Tony -----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of Eric NO3M Sent: Wednesday, November 30, 2016 12:01 PM To: [email protected] Subject: Re: [Elecraft] K3: KFL3C-200 filter I find the 200Hz filter most useful to knock down adjacent QRM, ie. during crowded contest conditions, not so much dealing with QRN. Try opening up the bandwidth to 500-700Hz when QRN is bad. The brain generally does a better job discerning a weak signal when there is more noise bandwidth, but of course, depends on the operator. APF doesn't seem particularly useful on very weak signals when a certain amount of QRN is present either. I had decent copy of 8Q7SP on QSB peaks on 160M last night with the bandwidth set at 550Hz... no chance with anything much narrower. 73 Eric NO3M On 11/28/2016 06:39 PM, N2TK, Tony wrote: > Tnx Ian, > On 80 and 160M this past weekend had the filter bandwidth set at 200HZ most of the time due to the QRN. The NR helped a little. Just trying to find out if worth the money to buy the new 200 HZ filter if I would really know the difference. > > 73, > N2TK, Tony > > ______________________________________________________________ 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] ______________________________________________________________ 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]
