[Elecraft] Power loss using K2/100

[Tom Hammond]

And... if I recall, don't forget tht it's in CELSIUS, NOT FARENHEIT. I made 
that (stoopid) error the first time I set tings up.

73,

Tom  N0SS

At 05:42 PM 7/29/03, you wrote:
>Hi Ed:
>Check the CAL TPA procedure. I haven't got my manual right here, but the 
>procedure for setting the "ambient" temp is pretty clear as I recall.
>Good Luck!
>73, Ken K3IU
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>At 06:32 PM 7/29/03, Edward Ringel wrote:
>>Hi,
>>
>>I'm having some difficulty with my KAT100 (we'll get to that later) but
>>in the process of doing final  tune up etc I discovered a problem with
>>my K2 that had not previously been noted. It appears to be a temperature
>>sensitive problem:
>>
>>
>>
>>When I turn on the K2/100 after it has been off for a while, I am easily
>>able to get 20W for tuning on all bands. Suddenly however I will lose
>>power on several bands-output will drop to 1 watt on 20W tune, 0.1 watt
>>on 2 watt tune on some bands but not others. If I cool the unit down
>>(turn off, wait a while) I get power back on all bands. This occurs
>>whether I am driving the ATU or a good quality dummy load (MFJ
>>cantenna). The bands seem to be pretty random.
>>
>>
>>
>>Up to now, everything has checked out pretty well. All toroid pads have
>>excellent conductivity. I was careful to not overheat semiconductors,
>>and I used a grounding strap.
>>
>>
>>
>>Any suggestions on where to begin? I realize I will need to do some
>>sleuthing, but some idea of where to start would be great.
>>
>>
>>
>>  I don't think I can tackle the KAT100 problem till I have stable output
>>on the K2/100. Furthermore, if it is a controller issue, it may be
>>messing up the KAT100.
>>
>>
>>
>>Thanks.
>>
>>
>>
>>Ed Ringel
>>
>>AA1WZ
>>
>>K2 #3548
>>
>>
>>
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