Power out on K2 # Power out on Wattmeter

[oe9fwv]

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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[oe9fwv]

hi Jim,

k4zm schrieb am 19 Mar 2006 um 17:13:

> Does the K2 have a KAT2 installed in it?

there is no tuner in either rig.


73! de Werner OE9FWV

--
The problem with being in the middle of the road is that you tend to get run
over.


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[Don Wilhelm-3]

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: [hidden email]
> [mailto:[hidden email]]On Behalf Of Dr. Werner Furlan
> Sent: Sunday, March 19, 2006 2:00 PM
> To: [hidden email]
> 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
>
>
> Email powered by Pegasus Mail free at <http://www.pmail.com>
> Homepage: <http://www.qsl.net/oe9fwv/>
> Fone [phone]
> Fax [phone]
> Mobile      [phone]
> Elecraft K2 #5203
>
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[oe9fwv]

hi Don,

sorry for the missing data - the K2's are both without PA and ATU.
The next test will be side by side on a dummy load.

73! de Werner
OE9FWV

--  
 You speak of beer, you speak my language  -- Al Bundy



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