Hi Wayne, "The improved resolution ensures that the correct bin is detected when you get within +/- 1 kHz of the target ATU LC data bin rather than +/- 8 kHz."
It has always been possible to provide the KAT500 and KPA1500 with TX frequency to 1 kHz resolution using the serial interface. KAT500: F (Frequency, GET and SET) GET format: F; SET/RESPONSE format: F nnnnn; where nnnnn is the approximate frequency of the last transmitted signal, in kHz. KPA1500: ^FR Frequency GET format: ^FR; RESPONSE/SET format: ^FRfffff; where fffff is the most recent frequency in kHz. However, both the KPA1500 and KAT500 tuners are designed to replace AUX or Serial provided frequency with RF detected frequency. This means that, even if the bin is selected accurately with serial or AUX frequency, the tuning solution is likely to change as soon as TX starts. This will only be prevented if RF detected frequency does not replace CAT or AUX provided frequency. This is a change I have been asking for almost as long as I have owned my KAT500. (Dick has my KAT500 defect/enhancement reports) Hopefully this change to K4 design will accelerate some of the fixes/improvements in both KAT500 and KPA1500 tuner firmware. 73, Andy, k3wyc ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
