How To Build An SWR / Relative Power Bridge

I start building an SWR / Relative Power Bridge. This is a simple circuit. I show you how to wind the toroid coils.

The circuit is based on Don Cantrell, ND6T’s Bitx Hacks webpage:
http://bitxhacks.blogspot.com/2017/03/

News

Happy 45th Birthday, AMSAT-OSCAR 7!

November 20, 2019 in: News No comments

The world’s longest-lived satellite, AO-7, turned 45 years old this month. It was launched on November 15, 1974, from Vandenberg Air Force Base in California. After nearly 7 years of service, AO-7 was thought to have reached the end of its... Read more

Melissa Stemmer Joins ARRL Headquarters as Development Manager

November 19, 2019 No comments
Nominations Invited for CWops Award for Advancing the Art of CW

November 18, 2019 No comments
IARU update regarding Amateur Satellite allocations

November 17, 2019 No comments
The K7RA Solar Update

November 15, 2019 No comments

App - Mobile

RUMlogNG2Go for iOS version 3.5.2 now available

August 19, 2018 in: App - Mobile No comments

Thomas Lindner, DL2RUM, is happy to announce the availability of version 3.5.2 of his RUMlogNG2Go logger for the iPhone and iPad. RUMlogNG2Go can be downloaded from the Apple iTunes store. More information on RUMlogNG2Go can be found on T... Read more