Building a Short 40m Antenna With Coil and AT-271 Whip.
12:31
Ham Radio: Base loaded Coil testing on 80M and 160M and Just how many Henry's do you need?
21:12
Experimental 40m Coil for MFJ1979
26:28
MicroVert 40M antenna - home made
33:41
WALLOOP ANTENNA - Simple Homemade Project ( +openWSPR receiver )
15:11
MY DIY 20-40 meter Air Wound Coil
26:51
Downloading Images From US Military Satellites
13:16
Ham Radio: 40 Metre Dipole In A Small Space
34:39