[Elecraft] Power cal on KAT2 question

Sun Aug 10 09:46:01 2003

Hi Tim,

The RF Probe is shown in Appendix E of the K2 manual, the troubleshooting section.
The 4.7Meg resistor works together with the DMM's own 10Meg input resistance to scale the voltage, so the reading on the DMM is RMS
voltage.   Connect the RF Probe directly to the dummy load.  If you have a 50 ohm load, the power in watts is calculated by squaring
the DMM reading and dividing by 50.

73/ Bob - AG5Q

----- Original Message -----
From: "Tim" <[email protected]>
To: "Elecraft Reflector" <[email protected]>
Sent: Sunday, August 10, 2003 12:04 AM
Subject: [Elecraft] Power cal on KAT2 question

> Hi folks -
>   Although this is my second KAT2, I am abit confused - I had a watt meter
> when I built the first one.
>    On page 17 it says you can use the RF probe and DMM connected to a dummy
> load instead on a wattmeter. Where do I connect the RF probe and how do I
> connect the DMM? Thanks for any help in advance and sorry if this question
> is really lame.
> 73/Tim NZ7C
>
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