Check the KAT500 utility to see which antennas are authorized and for which bands. You will need to supply RF from the IC7600 in order for the KAT 500 to know what to do.
If you have 2 antennas authorized for the same band that will confuse the issue. Also selecting LastUsed may be an issue where band data is not available. Bob, K4TAX Sent from my iPhone > On Dec 26, 2019, at 10:58 AM, Tom KG3V <k...@chesbayva.com> wrote: > > Don, > > Good to hear from you. You helped me many times with K2 questions in the > past. Thanks for that! Hope you are enjoying the Holiday Season. > > I actually meant the TUNE button on the IC-7600. You must have meant on the > KAT-500, since there is not a TUNE button on the KPA-500. It does not seem to > matter which TUNE button I press. I think you confirmed that it is working as > expected. Still a bit annoying. As soon as the TUNE cycle starts, of course > there is RF. I guess the KAT-500 is not sensing frequency DURING the TUNE > event. So, any time I switch Bands, I may go through a "complete" Tune cycle > with an antenna for the wrong Band. Of course, that most likely will not > complete with a match. The second TUNE cycle always selects the desired > antenna. > > I think I need to send the Band information from the IC-7600 to the KAT-500. > My other option will be to use only one antenna with the KAT-500 during > Contests. Is it safe to assume that if I send the Band info, this would not > happen and the first TUNE cycle would be with the "correct" antenna? > > 73, > > Tom, KG3V > > > >> On 12/26/2019 11:15 AM, Don Wilhelm wrote: >> Tom, >> >> If by "hit the TUNE button", you are referring to the TUNE button on the >> KPA500, those results are completely understandable. >> >> Changing bands on your transceiver is not communicated to the KAT500 yet - >> (it will only be communicated when you provide RF to the KAT500). >> >> So the KAT500 will not switch bands and will attempt to tune on the wrong >> antenna initially. Once the KAT500 senses RF, it will know that the band is >> not correct and will switch to the proper antenna for the band in use. >> >> In your second scenerio, you are providing RF to the KAT500 first and it >> will behave properly, so use that sequence. >> >> You should not have any problems with the KPA500 if you have the keying >> cable run correctly - from the transceiver to the KAT500 and then from the >> KAT500 to the KPA500. >> The KAT500 interrupts the keying line to the KPA500 so the tuning is done >> only with the exciter power level. >> >> 73 and HNY, >> Don W3FPR >> >>> On 12/26/2019 9:39 AM, Tom KG3V wrote: >>> I am using a KAT-500 Tuner with an ICOM IC-7600. I am not providing BAND >>> data, which is in line with recommendations for connecting this radio in >>> the Elecraft manuals. The documents tell me that RF Frequency-sensing >>> overrides all other information. I have two antennas enabled. ANT 1 is a >>> vertical for 10-40 meters. ANT 2 is an 80 meter dipole. I only ENABLE ANT 2 >>> for 80 meters and only ENABLE ANT 1 for all other Bands, in the KAT Config. >>> >>> If I change Bands and hit the Tune button, KAT-500 will not change to the >>> correct antenna Instead, it tries to Tune with the wrong antenna. The >>> second time I hit TUNE, it will go to the correct antenna. If instead, I >>> change Bands and hit the Key, the correct antenna is selected. That is fine >>> on CW, but not great for other Modes. Is this a bug? I don't see how this >>> could be desirable. I think this would be especially bad if I have the >>> KPA-500 powered-ON. >>> > -- > Get on the Air and make some noise > Ham Blog at WWW.KG3V.COM > > ______________________________________________________________ > 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 rmcg...@blomand.net ______________________________________________________________ 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
