[TowerTalk] Test Fixture for Common Mode Chokes

[Tony Brock-Fisher]

Looks good to me. I bought one - will let you know how it goes.

It seems to be very convenient to have switches that allow you to do the 
VNA calibration right on board. However it seems to measure the choke 
straight thru the outer shield. I think there are issues with that, and 
I previously always did it according to G3TXQ (SK) method:

http://www.karinya.net/g3txq/chokes/s21.pdf


-Tony, K1KP