[Elecraft] K2 running QRP

[W3FPR - Don Wilhelm]

Jean-Francois,

Whether you can run your K2 at full power or not depends on the duty cycle. 
For data modes where the duty cycle is 100%, the answer is NO - in fact you 
should keep the power down to about 5 watts for continuous duty modes.

For CW and SSB, operating at 14 watts should present no problem since the 
duty cycles with these modes is 50% or less.  Continuous key-down should be 
avoided except for short periods.

73,
Don W3FPR

----- Original Message ----- 
From: "Jean-François Ménard" <jfmenard at mac.com>
To: "Elecraft - Maling List" <elecraft at mailman.qth.net>
Sent: Thursday, December 30, 2004 6:49 AM
Subject: [Elecraft] K2 running QRP


Hi,

I know I read sometime a message telling that we must use the K2 at a
maximum power level of 10W to prevent such overheating, or final to
blow...... I'm not sure if I dream it or it is a real concern.

Yesterday, I checked my K2 running at full QRP power on every band
using the dummy load and my meter, I mesured the output level since I
added the internal antenna tuner KAT.... just to make sure that
everything is working fine. I have a CAL CUR set at 3.5A as suggested
in the manual. On 40M at 7.100 Khz, I got a nearly 19V DC on my dummy
load... so about 14.6W....

Can I run my K2 at full QRP power ?

73


===========================
Jean-François Ménard / VA2VYZ
Elecraft K2 #4130

http://homepage.mac.com/jfmenard
===========================
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