[Elecraft] Amp Failure, Efficiency

[Andy Durbin]

I had one off-line request for my test data so I'll share a link:

https://www.dropbox.com/s/uf258k1nw8o7xw3/Evaluation%20KPA500%20PA%20Dissipation%20rev%20ad4.pdf?dl=0

I have previously shared other links to reports that are based on the same raw data set.

Please note that the plots in this report contain no data for efficiency but efficiency can be derived from the plotted data.

Efficiency is the ratio of RF output to PA DC input power.   You can derive DC input power from the plotted data by adding RF output to PA dissipation.  In the raw data set I have PA voltage, PA current, and RF output.  I calculate PA DC input power then subtract RF output to give PA dissipation.

This is a draft report and may contain errors.  Comments on test method or results are welcome.  My QRZ address is valid.


Andy, k3wyc