[Elecraft] K3 and JT65

[Jim Brown]

On 3/16/2014 10:00 AM, Bill Frantz wrote:
> I have run a lot of PSK on a K3/10. I have never had a problem running 
> full power -- all 10-12 watts of it. Sometimes I type a lot too. 

The K3, KX3, and the power amps are quite well protected, and designed 
to run full power in keydown modes.

> I get good IMD reports. Don't worry. Be happy. 

In a tutorial on clean signals to the NCCC last fall, K6XX noted that 
the distortion in solid state amps rises with output power, and that all 
Elecraft amps are significantly cleaner at half power.

Distortion also rises as power supply voltage drops. So a K3 running on 
13.8 - 14.5 VDC will be cleaner than on 11 VDC.

73, Jim K9YC