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Ham Radio . Magnum Experimentum

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

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cell

Energizer lithium vs. alkaline batteries

January 1, 2021May 23, 2019
Shows cell voltage of Energizer Lithium and Alkaline battery over time.

Some APRS beacon tests provide data directly comparing the energy performance of Energizer alkaline and lithium AA cells.

Categories power supply Tags AA, APRS, battery, cell, energizer, Energizer Lithium, Energizer MAX, LiFeS2, lithium, measurement

Ham Saves Self with HT While Hunting

May 19, 2018November 7, 2008
Entire communications path for ham requesting ambulance.

Ham radio enhances hunting safety by bringing assistance to injured hunter using cross band repeat.

Categories EmComm Tags 2m, 70cm, cell, crossband, emcomm, HT, Kenwood, repeater, TM-708a, vx6r, Yeasu

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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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