I upgraded one of my KAT500 tuners to firmware version 2.05. I had already upgraded the KAT500 utility to the current version, so no issues there. After the upgrade, the KAT500 is unable to find a tuning solution on my 80 meter dipole. My first thought was that there was an issue with the dipole, but I checked it with an AA-230 antenna analyzer and there was no change from previous measurements. I then switched the upgraded KAT500 with another KAT500 that I have which was running firmware version 1.75. It found a tuning solution on the dipole just fine, as has always been the case with the first KAT500 prior to the firmware upgrade. So, I "downgraded" the updated KAT500 to firmware version 1.75 and it once again was able to easily find a tuning solution for the 80 meter dipole. It seems that something in the tuning algorithm was changed in the latest firmware that affects the tuner's ability to find a tuning solution on 80 meters (I did not notice this issue on other bands after I updated the firmware, but I concentrated my troubleshooting on the 80 meter dipole).
Any ideas? I really want to use the latest firmware to take advantage of the capability to accept transceiver TX frequency messages in Kenwood format. Bart, NS4X ______________________________________________________________ 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
