Sounds like the frequency counter detects "new" frequencies and switches
over to the settings stored for that new frequency (that's why you hear
the relays clicking). Or it is going into self-protecting mode ...
73, Olli
Contest, DX & radio projects: http://www.dh8bqa.de
Am 29.11.2014 16:54, schrieb Tom Blahovici:
Hi
Yes erased the 80m and then did a bunch of tunes across the band, all OK.
However,, if I then provide a carrier for more than 3 seconds on a tuned
frequency the kat500 starts flipping relays and then goes back to steady only
to keep repeating itself.
In manual mode. That is not supposed to happen in manual mode as far as I am
aware.
On Nov 29, 2014 10:11 AM, Dick Dievendorff <[email protected]> wrote:
All full search tunes, whether started by manually pressing the TUNE button or
an SWR-based autotune, store the tuning solution in memory.
I'd suggest you erase the tuner settings for 20 meters on the affected antenna connector
KAT500 Utility configuration tab) and "train" the tuner by pressing TUNE and
provide a 20 watt tune signal on a few frequencies across the band. You don't want
remnants of the erroneous settings in those memories, or you'll keep finding them.
Then leave the ATU in mode MAN so that it selects from previously found tuning
solutions as you QSY across the band.
As for how you got there - I can speculate, but I don't know anything about
your path from ATU to antennas. It probably matched a different impedance at
some point in the past. I might get that result here by having an external
antenna switch in the wrong position and use the KAT500 to match my 15 meter
beam on 20 meters, and then change my antenna switch.
You probably don't want the ATU in mode AUTO very often. After antenna
configuration changes, erase the tuner memories on the affected bands, and tune
at a few spots on the band. Then let the ATU choose from those settings by
frequency, which it will do in mode MAN.
73 de Dick, K6KR
On Nov 29, 2014, at 06:17, <[email protected]> <[email protected]> wrote:
Our KAT500 (used with K3 and KPA500) seems to have forgotten its correct
memories for the 20 m band or maybe developed new erroneous memories. It gives
me 14 to 1 on autotune. If I set it on manual and do a tune it reads 1.2 to 1.
So here is the question: if I do manual tunes every so many MHz across the
band will those go into memory, or is the memory based only on autotunes?
Also, any idea how this happened?
THANKS!
Julie KT4JR
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