helical hf

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A two dollar helical hf portable antenna - AH6NF
Here is an easily transportable vertical antenna for 20 meters collapsible to 4 feet that ...

[ Hits: 22388 | Votes: 14 | Rating: 7.65 ]
Axial-Mode Helical Antennas - W4RNL
Turn Helical Antennas Over Perfect Ground and Modeling Helices in NEC-2

[ Hits: 1987 | Votes: 4 | Rating: 1.75 ]
Axial-Mode Helical Antennas - W4RNL
Notes on Axial Mode Helical Antennas in Amateur Service Helix Basics Modeling Issues and Short ...

[ Hits: 1651 | Votes: 0 | Rating: 0 ]
Helical Feed Antennas
Helical antennas have long been popular in applications from VHF to microwaves requiring circular polarization ...

[ Hits: 1919 | Votes: 2 | Rating: 3 ]
HF Helical Whip Calculator - VK4ADC
Calculating HF helical whip antenna for mobile or portable operation

[ Hits: 1158 | Votes: 6 | Rating: 3 ]
Helical HF Portable Antenna
An easily transportable vertical antenna for 20 meters collapsible to 4 feet

[ Hits: 1774 | Votes: 0 | Rating: 0 ]