BUILD and TEST a 49:1 UNUN for EFHW HF Antenna
21:28
Build a Better 49:1 UnUn for the EFHW antenna *RE-TESTED*
34:03
How to build 9:1 unun for a random wire hf antenna
15:12
EFHW ham radio HF antenna transformer tests - build the best yourself - save money build and learn
36:34
Build a Better 49:1 UnUn for the EFHW antenna
1:06:55
KJ6ER - PERformer, Challenger and Dominatorportable antennas for POTA
17:29
ATU350 - A Cheap 350 Watt Remote Automatic HF Antenna Tuner
26:55
HF Antenna Micro-Traps - DIY Build Project
6:53