To calibrate, you need a sine wave source of known power level and a step
attenuator. Actually, a single attenuator would work but it's better to
have multiple points. There's information in the User's Guide and the
software has a built-in function for power calibration.
The source should have a frequency somewhere in "midrange" - perhaps 5 to
I homebrewed two simple sources for my calibration. First was the -10 dBm
square wave calibrator by Bob Kopshi K3NHI and a 10 dBm, 10 MHz sinewave
calibrator by VE7BPO that I calibrated to K3NHI's circuit. I used a
homebrew step attenuator. Attenuators are pretty cheap and easy to build
You can find some folders in the Files area that describe how people did
calibrations. The circuits and articles I described can be found on the
web. I can provide some of the articles and circuits if needed.
Other suggestions I've heard here also sound good.
On Mon, May 7, 2018 at 4:51 PM Alfredo Mendiola Loyola via Groups.Io