Yes and no. When the 4-wire BAND data changes, the ATU does retune on band change to the settings for the frequency last used on the new band. This is often close enough that the receiver works well.
Selection of the precise memory for the Tx frequency occurs (when the KAT500 is in its Automatic mode) on transmission. The ATU does not change settings as you move across the band while receiving. Same as the KAT3 in this regard. 73 de Dick, K6KR -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Oliver Dröse Sent: Saturday, October 06, 2012 2:12 AM To: elecraft@mailman.qth.net List Subject: Re: [Elecraft] KAT500 > * Instant memory-tuning (and antenna selection!) on band change > (without needing to make any RF) Antenna selection yes, memory no. How shall the tuner know which frequency you are tuned to and which memories it should recall? BCD data only encode the band, not the frequency. With the bands "sliced" into several segments for which tuning memories are stored (presuming the KAT500 works the same as the KAT3 and KXAT3 - I would bet on it, hi) you *will* need to "send a dit" for the tuner to recognize on which frequency within a band you are and which memory must be recalled. Judging from the auto RF detection / band change routine in the KPA500 I bet you will not even recognize the tuner's doing it. But that does not mean it does not do it. ;-) 73, Olli - DH8BQA ______________________________________________________________ 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
