On Sat, 30 Aug 2008 05:57:15 -0700 (PDT), Bill W4ZV <[EMAIL PROTECTED]> wrote:
[snip] >> The beat is not the same as the difference in filter offsets. Somewhere >> in the KRX3 documentation I believe it states the beat may only be as bad >> as a Hz or so. >> >> 73, Bill >> >> > >Found the reference on page 42 of the KRX3 manual (1.6 MB): > >Diversity receive performance may be enhanced by >using crystal filters with matched offsets >(CONFIG:FLx FRQ). This ensures that the VFOs >are at exactly the same frequency. Non-matched >filter offsets will result in a difference of about +/- 1 >Hz between the two synthesizers, which may be >heard as a beat note under some conditions. > >http://www.elecraft.com/manual/KRX3_Subreceiver_Install_&_Operate_Rev_A_WEB.pdf > >73, Bill This beat note experience is one of the reasons I got a K3. My Orion II always had a 6Hz difference between the A VFO and B VFO. It was very irritating after having Kenwoods and Yaesus that did not suffer from that problem. I am still waiting for my KRX3, but when I heard about the offset possibility I changed my order for the KRX3 from a 2.7 KHz filter to a 2.8Khz filter (the others ordered are all 8 pole filters) and replaced the 2.7Khz filter in the K3 with a 2.8Khz filter. Tom, N5GE - SWOT 3537 - Grid EM12jq "Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety" An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
