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Marconi Goniometer Radio Antenna Extremely rare, museum goniometer radio antenna, model "F" MARCONI - TYPE 2469 B - Serial. N.2767 - The naval antenna of the crossed loop type, made with alloy
GONIOMETER GO-6/GRD RADIO CITY PRODUCTS
Reproduction 1909 Marconi Direction Finder - Made on a Glowforge - Glowforge Owners Forum
software defined radio - How might one realize a first order, two dimensional RF field antenna for HF? - Amateur Radio Stack Exchange
Radio Direction Finding
Detail of Goniometer Used inside the Radio Beacon Transmitting Station at Ford Airport, 1926 - The Henry Ford