Ron D'Eau Claire wrote:
Hmmm... Did you increase the 20 amp fast-blow fuse size Elecraft specifies,
Vic?
I'm using a Rigrunner power strip and I have a 25 amp fuse in the K2's slot.
If you are really drawing 20 amps (or more), that suggests some issues with
your output bandpass filters.
I don't recall which band or bands drew 20 amps, but I don't think
there's a problem. I recall discussing this with Gary at the time and
we decided that 'some of them do this'. I will check it the next time
I'm in my shack and see which bands.
One other thing to keep in mind is that a slightly reactive load -- even
with a reasonable SWR -- may change the current draw significantly. I
think this was my issue, actually. Some band on which the antenna's SWR
was about 1.4:1 nevertheless drew much more current than the dummy load.
Yes, the K2/100 is a bit more efficient than many rigs. I suspect that's why
a lot of ops got the idea that the 20 amp Astron was too 'light' for it!
I think the 20 amp Astron would be fine just to run a K2. In my case I
also have a 2-meter rig (which I used to use for packet and which would
therefore randomly transmit at 45 watts) and a whole bunch of filters,
etc., each of which is good for an amp or so.
--
Best Regards,
Vic Rosenthal
Transparent Software, Inc. -- RAKEFET
559.226.5147
Visit us at <http://www.rakefet.com>
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