Hi Trevor,
Simply terminate the high impedance side of your transformer in a 470 ohm resistor (or almost any other resistor) and use an antenna analyzer to measure the input impedance of the transformer. The reading should be consistent the impedance ratio of the transformer. Sláinte Frank Donovan W3LPL ----- Original Message ----- From: "MR TREVOR DUNNE" <ei2...@eircom.net> To: "''topband List''" <topband@contesting.com> Cc: "MR TREVOR DUNNE" <ei2...@eircom.net> Sent: Friday, February 2, 2018 3:33:32 PM Subject: Topband: Beverage transformer and testing Hi I know it's probably been covered here hundreds of times but I'm looking to make a matching Transformer for a 550ft beverage to 75 ohm coax, I have so bn73-202 cores Also how can I test it once it's built Thanks Trevor EI2GLB _________________ Topband Reflector Archives - http://www.contesting.com/_topband _________________ Topband Reflector Archives - http://www.contesting.com/_topband
