Posted by
Steven Pituch on
Aug 09, 2005; 1:52am
URL: http://elecraft.85.s1.nabble.com/K2-TX-power-cutoff-tp381044p381050.html
Hi Don,
Sorry, I forgot to mention that I have tried using several Wattmeters after
the KPA100 and before the KAT100, and they all pretty much agree. I will
calibrate the pot as you suggest. Thanks.
Steve, W2MY
-----Original Message-----
From: W3FPR - Don Wilhelm [mailto:
[hidden email]]
Sent: Monday, August 08, 2005 7:33 PM
To: Steven Pituch; 'Elecraft Main Group'
Subject: RE: [Elecraft] 8W Lo & 40W Hi in Tune
Steve,
How are you determining the power output? Is the 8 watts and the 40 watts
what is indicated on the K2 or what is indicated on an external wattmeter.
If it is an external wattmeter, then the answer is easy - calibrate the
forward power pot in the KPA100.
OTOH, if the power indication is on the K2 display, look carefully at your
dummy load. A good 50 ohm dummy load connected directly to the K2 should
provide a power output of 2 watts and 20 watts on the K2 display (but the
KPA100 wattmeter still needs to be calibrated before the actual power is
equal to what the K2 displays).
73,
Don W3FPR
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