[Elecraft] K2 KPA100 transmit test: fail

[Dave Sergeant]

I don't think you can conclude anything by monitoring the transmitter 
with a separate nearby receiver. Have you tried measuring the power 
output with a power meter or even an SWR meter? Your current readings 
look just like what would be expected, and I suspect there is nothing 
whatsoever wrong with your K2. Put a power meter or swr meter in series 
with the dummy load and tell us what that says.

73 Dave G3YMC

On 6 May 2011 at 22:17, Brian - N5BCN wrote:

> When transmitting cw into a 100 watt dummy load, things appear normal
> when transmitting in QRP mode (below 11 watts).  The strength of the cw
> signal on a separate receiver increases in strength as does the current
> draw up until the 11 watt level.
> 
> When the K2 Power level hits 11 watts, the high power relay clicks but
> the signal strength actually drops.  At 20 watts, the signal strength on
> the separate receiver is quieter than at 10 watts.  However, the current
> steadily increases and did not drop after the high power relay kicked
> in.
> 
> My approx current draw measurements at key down for various power levels
> (measured by my power supply's meter):
> 
> 5 W    ~ 2 A
> 10 W  ~ 3 A
> 15 W  ~ 7 A
> 25 W  ~ 8 A
> 50 W  ~ 11 A
> 100 W ~16-17 A
> 


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