>From the Elecraft ordering page: For same operating frequency diversity receive use with K3 and KRX3. Set the K3 offset menu for both filters equal and to the nearest 10Hz offset approximately half way between their marked offset frequencies. Only applies to our 5 pole filters, 200 Hz, 500 Hz and 2.7 kHz, which have non-zero offsets.
Note: Best if both filters to be matched are ordered at the same time. We will try to accommodate matching to 5 pole filters already shipped (8 pole filters all have a nominal 0 offset) but we can only guarantee an offset match within 40 Hz if both filters are ordered at the same time, due to batch to batch manufacturing frequency changes. The menu offset for both filters that are within 40 Hz of each other can be set equally to the midpoint between their offsets. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Walter V. Gilles Sent: Saturday, January 31, 2009 12:51 PM To: [email protected] Subject: [Elecraft] K3 - Diversity Reception, Matched Roofing Filters 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
