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dummy load with power measurement?

Sideways

Active Member
Mar 18, 2013
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southern ohio
I made my own dummy load a while back, via instuctions on k4eaa's website
http://www.k4eaa.com/dummy.html

I recently added binding post for power measurement, and it works great, but I had a couple questions for the more informed.
I used 2 1n4148 diodes in series as he did in the pics. But he recommends a bav21 as the signal diode. What would be the advantage of the bav21?

And also, using a 1kz tone, is this an accurate way of measuring pep?
Measuring power with the dummy load vs my (cheap) meters, i've found my meters pretty accurate when measuring carrier. But measuring pep, my meters show lower numbers vs the dummy load. Not to say, i was expecting them to be accurate by any means..

I appreciate any info or insight. Thanks in advance
 
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