[Elecraft] KPA100 Hi Current on 30M

[Ken K3IU]

Hi Jim:
Looks to me like your KPA100 is working just fine. When I press "Tune" the 
power on mine gets reduced to 20 watts so long as the power commanded is 
greater than 20 watts. I just checked it with the output going directly to 
a dummy load and with the KAT100 disconnected. If you first tap the Display 
button to show volts and amps, then pressing the "Tune" button will produce 
the commanded power out and not be limited to 20 watts. I have no idea why 
you are getting the 55 watts when you press Tune <g>
73, Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
At 02:49 PM 6/12/2005, James T. \"Jim\" Rogers, W4ATK wrote:
>         I am a bit mystified by the reports of low power on 30M. I have 
> K2 #4028
>and bought my KPA-100 at the time I purchased my K2. Barefoot on 30M, I have
>15w out (measured) and QRO a good solid 100W (measured). If I choose to
>observe power out in TUNE, the K2 will cut the power to around 55W, but
>coming out of tune and closing the key will get me a good solid 100W. I have
>not experienced a problem with overcurrent. I wonder what has changed in the
>more recently delivered KPA100s to cause the problem?
>
>         Just for grins, I switched in the dummy load and on 30M with the 
> POWER
>control at full throttle, I can bump 3.5 amps according to the K2 current
>display. And as reported above, a rock solid 100W.
>
>Just curious.
>
>Jim, W4ATK