50 MHz Door Frame Loop Antenna Construction Photos

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50MHz door frame loop in cottage yard. Mast 5.5 m Al-tube


I used 20 mm plastic support tubes on top and bottom


The wire is 1.5mm enamel wire, total length 6.25m


Wire connection using ring lugs in feeding point


Choke balun 10 Wurth 74270034 ferrites on satellite RG6 coax


75 ohm satellite cable RG6 (lenght 8 x half wave = 19.80m)


Feeding point detail with F-bulkhead connector

Bulkhead F-connector sealed with hot-setting adhesive

Top part detail


Simple bearing for 1mm Kevlar guy ropes

Matching in Smitt chart

SWR below 1.5:1 from 50.000MHz to 5.600MHz


Updated installation, height 10 meters

See also 50MHz door frame loop simulation

Update 2023-06-12 OH7SV

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