I trained my KAT500 right after I built it, I run it in MANUAL, and it's
about as perfect as you can get. I don't think I've ever asked for an
additional feature, so here goes:
I use a C-R dipole @~65 ft for 40, 30, 17, and 12 [the GAP Titan is
just too noisy on those bands]. I built it from two lengths of 450 ohm
"window-line". Works great ... like a fan-dipole, it has a dipole
pattern on all bands instead of squirting my RF in undesired directions
on 17 and 12. The problem: 450 ohm window-line is somewhat sensitive
to rain, fog, snow, ice, and other forms of wetness. Thus, I need to
re-train at the beginning of the rain, and again when summer arrives
[almost never rains in the N. Cal Sierra foothills from about May to
Oct]. So,
1. Two banks of EEPROM to store separate training values. As an
accessory would be fine for me, a lot of folk have stable antennas and,
in the "Elecraft Ethic," should not have to pay for it if they don't
need it.
2. As an alternative, add a "Train Your KAT500" option in the KAT500
Utility. Upside is that doing it manually takes quite awhile. Down
side is that your 20W tune signal is sure to step very briefly on
someone somewhere since the Utility won't have any good way of know if
the chosen training frequency is occupied [Don't use 14230 or 14300
:-)]. The Utility could maybe allow you to select segments used [mine
would all be CW] which would lessen the on-air impact.
And now, I await someone telling me that the KAT500 Utility already does
this. I don't see it there, but I've overlooked a lot of features on my
Elecraft gear.
Fred K6DGW
TDY Livermore CA
On 6/9/2014 8:03 PM, Cady, Fred wrote:
Hello again on the training of the KAT500:
Don W3WPR points out that I forgot to mention that each band has segments for
which you should find the tuner settings. The segment widths are:
Below 3 MHz -- 10 kHz
3MHz to 26 MHz -- 20 kHz
26 MHz to 38 MHz -- 100 kHz
38 MHz to 60 MHz -- 200 kHz
You should train the KAT500 on at least one frequency in each segment. For
example, on 20 meters, start at about 14.010 and then move up the band in 20
kHz jumps to fully train the tuner for the entire band. Of course you don't
have to train it for the whole band or every band if you don't operate on some
frequencies.
73,
Fred KE7x
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