by Michael Martens | Nov 18, 2015 | Ham Radio Q and A
So far the first five episodes of the Ham Radio Q and A show have generated quite a bit of interest and response. They’ve also spurred more than a few questions, so I thought I’d take a moment and follow up on a few of the questions asked. In the episode titled RF...
by Michael Martens | Jul 23, 2015 | Ham Radio Q and A
You’ve heard a lot of people recommend putting a few loops of coax near the feed point of your antenna to keep the RF energy out. How does this work and why is it needed. Watch this episode for more information on common mode currents, baluns, and RF chokes....
by Michael Martens | Apr 21, 2012 | Amateur Radio, Antennas, UHF, VHF
Most of the instructions and plans you see online for J-Pole antennas often include the admonition to use a choke balun with the antenna. The purpose of the balun is to limit the amount of RF radiation coming back down the feedline and into the radio. Even though...
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