I have had issues with the new FW not finding solutions as well. I haven't
really investigated beyond discovering that the input attenuator is not the same
topography as the schematic and the resistor value isn't either. I don't know
whether this is a component failure or not. On a band or two I've done a better
job matching manually with the utility program than the tuner algorithm does.
Don't ask for particulars, I did this in the heat of battle and didn't document
anything. I may just roll back the FW, even though I too am using a Kenwood.
Wes N7WS
On 1/2/2022 10:46 AM, Bart Campbell wrote:
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:[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]
