L1 vs W1 Power Reading

Posted by akiwi ham on May 09, 2009; 7:20pm
URL: http://elecraft.85.s1.nabble.com/L1-vs-W1-Power-Reading-tp2851144.html

I recently put together a DL1 dummy load and W1 wattmeter.

I have the DL1 connected to my KX1 through the W1. I have the W1 connected
to a computer using the W1 software. I have a significant difference between
the power reading from the W1 and the power calculated from the voltage
measured on TP1 of the DL1 using a digital volt meter.

For example:

W1 reading = 4.04W

TP1 volts on DL1 = 8.97V => 3.29W

Is this magnitude of difference to be expected?

 Bryan, Zl1NI
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