Welcome to Ham Radio DX!

Amateur Radio Blog Posts

Want to learn more about Ham Radio?

SUBSCRIBE to the Ham Radio DX channel

youtube facebook new-instagram-logo-png-transparent-light twitter2



Reduce Common Mode Current (CMC) with a Easy to Build Choke

6 October, 2021 - Reading time: ~1 minute

Common Mode Current can really mess with RFI and cause interference in the shack. In addition, you could also be receiving unwanted interference on the coax outer shield.

In this video I show how I built myself an easy CMC choke using a toroid and RG-58 coax.