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Ham Radio . Magnum Experimentum

Antennas, experiments, engineering and other articles of interest to radio folks.

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parallel

Where quarter-wave radiator decoupling stubs work… and don’t work

January 1, 2021December 28, 2018
Choked dipole of varying lengths with demarcations of max current and voltage.

Tests suggest transmission line decoupling stubs are not immune to the conductor past the stub.

Categories Antennas Tags choke, multi-band, parallel, quarter-wave, Simulation

Ladder Line the Old Fashioned Way

November 5, 2018October 24, 2009

Photo album showcasing the creation of a home made ladder transmission line.

Categories Antennas Tags 40m, 80m, kj4faj, ladder, ladderline, parallel

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2m 6m 10m 15m 20m 40m 43 foot 70cm 80m AHVD APRS Baluns battery BigIR copper Diamond dipole DX-Eng. EFHW Elecraft end-fed EZNEC Field Day Golden Packet hexbeam J-Pole Kenwood kj4faj KX3 kx4o measurement mobile NEC NMO NVIS packet PL259 QRP sdr Simulation SteppIR UHF vertical dipole verticals VHF
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