Phil and all, Yes, for diversity receive, the filters should be matched. In theory, the 8 pole filters should have zero offset, but in practice, they may have a small bit of an offset. The answer is to "compromise" - if you hear a WOW-WOW sound while listening to diversity, you should change the filter offsets a bit. until you eliminate the WOW-WOW.
If you are using the SubRX only for RX of the DX in a split situation, there is no need to have matched filters - that operation is quite different than diversity operation. 73, Don W3FPR On 7/2/2012 10:50 PM, Phillip Shepard wrote: > My understanding is that diversity receive works best with matched receiver > topologies. Should the subRx have the same filter array as the main Rx > (bandwidths and types)? If the main Rx has 8-pole 2.8, 1.8 and 0.4 kHz > filters, should the subRx mimic that? Thank you for the enlightenment. > > 73, > Phil, NS7P > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net]On Behalf Of Ron D'Eau Claire > Sent: Monday, July 02, 2012 7:11 PM > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3 - panadapter or subreceiver > > > And for most operations 8 pole filters are not required. > > Ron AC7AC > > -----Original Message----- > > Hi Mike, > > You are right! I should have read the manual before posting ;-) > > It is important to consider the filters needed for the subRX - 8-pole > filters are not inexpensive. > > I hope to have both someday, but for now am very happy with my P3 and KPA500 > (and KAT500 on order...). > > ----- > Brian, op K1NW > -- > > ______________________________________________________________ > 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 > > ______________________________________________________________ > 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 > ______________________________________________________________ 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
