[Elecraft] K2 in Overdrive Mode: 20 watts ?

[Eric Swartz WA6HHQ - Elecraft]

Hi Jim,

We emphatically do not recommend trying to run the K2 above 15W, especially in
SSB operation. In SSB operation you will see seriously degraded IMD distortion,
especially on the bands above 20M, if you run well over 15W. 

While on CW you can tolerate some flat topping when operating above 15W (the low
pass filter takes out the 3rd order harmonic), you will be removing the cw
shaping circuitry, built in power dissipation headroom, over current and SWR
protection that makes the K2's PAs so rugged. Also, you will be exceeding the
design level for our PA heatsink. Not a good idea.

Stay tuned - The K2/100 will be shipping by Dayton (May 19th).

73, Eric  WA6HHQ
Elecraft
==============

> ----- Original Message -----
> From: JimWMiller@aol.com
> Sent: Monday, April 22, 2002 3:10 PM
> Subject: [Elecraft] K2 in Overdrive Mode: 20 watts ?
> 
> It is my understanding that the K2 is capable of about 20 watts output on the
> lower bands if the power supply is run at 15 volts and the high voltage 
> output protection  circuit is defeated.
> 
> Is anyone getting 20+ watts in this "over-drive" mode?
> 
> I realized that this is pushing the rig to the max but I enjoy "life in the fast lane".
> 73,
> Jim Miller, WA2UMP