Buck, I have a similar setup with an IC-7300 and my KAT500/KPA500 combo. It does not auto band change before key up. It does change on a quick, low power tune however. IIRC I made a not so recent inquiry to Elecraft yielded the explanation that my experience was correct. If I can find the message I will post the text.
As Ken WA2LBI indicated in his message, what I did subsequently was to jettison the "ICOM AH4 cable" set up (KAT500 Owners Manual, pg 8 to 10) and just used a generic Analog radio configuration. The frequency sensing capabilities of the ATU and amp do the job fast and efficiently. Currently I use a 4-way RCA audio switch to select the keyline sig from one of the HF radios I use and a remote antenna/rig selector (MFJ 4724) to route the selected rig to the amp. The KAT500 remembers my preferred HF antenna for the band I have chosen to use so the antenna side of the MFJ is used to switch other coaxial feeds. Jack Spitznagel - KD4IZ -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Buck Sent: Monday, April 19, 2021 14:04 To: [email protected]; [email protected] Subject: Re: [Elecraft] Controlling KAT500/KPA500 with Icom 7610 I made up the cable from the Molex to the TUNE on the KAT500 as described and have checked continuity from end to end. All OK. I have the SEND from the 7610 connected to the PTT RLY on the KAT500. When I change bands, nothing happens. Is there another setting I need to change in the 7610? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/19/2021 10:35 AM, Lyn Norstad wrote: > Buck - > > The KAT500 Rev D1 Manual, pages 13, 14 and 15 cover the Icom connections. > > The "AH4" cable (the one you're describing) powers the KAT500 and > controls the "Tune" function. If yours isn't doing anything, the > cable is probably defective. > > What else do you have connected? > > 73 > Lyn, W0LEN > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Buck > Sent: Monday, April 19, 2021 7:42 AM > To: [email protected] > Subject: [Elecraft] Controlling KAT500/KPA500 with Icom 7610 > > Anyone who has succeeded, I could use some help. The connection from > the 7610 molex antenna tuner jack to the "Icom in" jack on the KSAT500 > doesn't do anything. > ______________________________________________________________ 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 Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]

