True power will be the indicated forward power minus the indicated reflected
power on the 43.
Looks like the dummy load got overloaded at one time.
73
Gary K4FMX
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
> On Behalf Of David C. Hallam
> Sent: Wednesday, December 02, 2009 12:16 PM
> To: AMPS List
> Subject: [Amps] Dummy Loads & Wattmeters
>
> A little education, please.
>
> I am working on restoring an old transceiver and linear. I have a Bird
> 43 wattmeter and a Heath Cantenna dummy load. The wattmeter is for 50
> ohm impedance and I measure the DC resistance of the Cantenna at 70 ohm.
>
> Is there any effect on the wattmeter reading from this mismatch?
>
> David
> KW4DH
> --
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