Walter, Whatever the absolute offset required for the 8 pole filters, it should not deter your building. The offsets are entered into the menu after the build is complete.
While the 8 pole filters have a 'nominal offset' of zero, you may find that to be perfect for diversity reception that you should find the absolute offset difference between the 2 filters of the same width and use half the difference as the offset. With the 8 pole filters, any offset will be small - but remember that 'nominal' does not equal 'exact', and as far as diversity reception is concerned, you are dealing with exact if there is to be no shift between the main and sub receivers. I am not going to go into saying how to determine the exact offset required, I have not done that because I don't have the sub RX and have only the 5 pole filters - that meets my needs. I leave that exercise to others. 73, Don W3FPR Walter V. Gilles wrote: > I am finishing up my K3/100 kit (all 8 pole roofing filters, no sub > rcvr), and already looking over the fence. > > Am I correct in my understanding that for diversity reception with the > KRX3, and using all 8 pole roofing filters (same 8 pole BW in same > slots for main and sub boards), that matching of filters is > unnecessary due to the inherent 8 pole filter zero offset? > Conversely, matching of filters for diversity only applies if one uses > offset 5 pole filters? Thanks. > > Walter, N0DZJ > > > ------------------------------------------------------------------------ > > ______________________________________________________________ > 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 > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.0.233 / Virus Database: 270.10.16/1926 - Release Date: 01/30/09 > 17:31:00 > > ______________________________________________________________ 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
