[Elecraft] Power out on K2 # Power out on Wattmeter

[Don Wilhelm]

Werner,

If the K2 is in fact a K2/100, it could be that the wattmeter in the KPA100
needs to be calibrated.

On the other hand, if this is a QRP K2, the power output indication on the
K2 is a simple RF Probe and is very sensitive to the actual load (antenna)
impedance.  If you use the QRP K2 (without the KAT2 or KAT100) driving a
good 50 ohm non-reactive dummy load, you should find close agreement between
the K2 indication and the wattmeter - in fact, if you do not, I would blame
either the dummy load or the external wattmeter rather than the K2.

Sorry, but with the information available, there is no single answer, I can
only guess.

73,
Don W3FPR

> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net]On Behalf Of Dr. Werner Furlan
> Sent: Sunday, March 19, 2006 2:00 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Power out on K2 # Power out on Wattmeter
>
>
> hi all,
>
> my friend Egon purchased a used K2 and he asks me what could be the
> cause that the power he is reading on the Watt meter is always
> about double
> as high as the numbers on the K2 display.
> I checked this here with my K2 and I also find a difference, but
> usually not so
> high than he. I also found out that the difference is not the
> same on different
> bands. I use a Daiwa CN620A cross needle meter with the 20W setting.
> Both transceivers otherwise work fine.
>
> Is there an explanation or something to fix?
>
> 73! de Werner OE9FWV
>
> --
> "Einige halten Fussball für einen Kampf auf Leben und Tod. Aber ich
> versichere Ihnen, dass es weit ernster ist."
> Bill Shankley
>
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