DIY Simple Pi Attenuator
I have recently build a RF power meter, called “Trinity FR Power Meter” from Daniel’ webpage , in my case in need to measures often up to +-/30-40 db, so i need to put attenuator between power source and RF power meter to avoid saturation or rf-in stage destruction…
Here some links to calculate easily a Pi attenuator:
http://www.microwaves101.com/encyclopedia/calcattenuator.cfm
http://www.random-science-tools.com/electronics/PI_attenuator.html
I have made two versions, 40 and 50db, put in small rf enclosure box, with two BNC connector RF In/Out:
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