Does the KBPF3 go into the RX module or the main board module? Ie do you need two if you have the dual receivers? You probably wouldn't need dual RX out of band but just a wonder.... I guess the band passes would have to be on the RX modules or you wouldn't be able to get the two RX modules onto frequencies on two separate bands.... True?
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mark Bayern Sent: Monday, February 18, 2008 1:55 PM To: Bill Kimura Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Filter question >From the K3 FAQs (see <http://www.elecraft.com/K3/K3FAQ.htm>) ~~~~ Q: I'm still not clear on the general-coverage (GC) receive option -- if it is indeed "optional" or available by default in a minimally configured radio. The basic radio, as well as the subreceiver, has a full array of ham-band-only filters at the front end. This is to ensure excellent performance in the ham bands. These filters are switched in by means of relays. The KBPF3 option is a small plug-in module that sits above the ham-band filters. It, too, has a number of filters switched in by relays. The difference is that these are wider filters, covering all of the area between the ham bands. But they share the same input/output path as the ham-band filters. When not selected, the GC filters have absolutely no effect on performance, thanks to a very careful layout that minimizes trace lengths. When you tune the radio well outside the ham bands, an appropriate GC filter is automatically selected by firmware. ~~~~ Hopes this helps -- at least with your KBPF3 question. Mark AD5SS _______________________________________________ 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 _______________________________________________ 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
