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Antenna Marconi 136 khz


The qso made in cross mode at the same QRG because my set-up has not the capability to TX audio, but only CW QRSS and Opera
post 31 Jan 2024
Antenna Marconi 136 khz

Antenna 136KHz Links

73



VLF Loop for Radio Direction Finding
With two crossed loops, one North/South, one East/West, radio-direction finding on VLF is possible

VLF nach KW-Konverter
The schematic above is a simple up converter which I used in conjunction with a short-wave receiver to quite successfully to monitor solar flare activity a few years ago

VLF/LF to 28.5 MHz Receiving Converter
It is built using ugly style in a small metallic case using BNC for in- and output connection including some internal shielding of the crystal oscillator


Take off angle of horizontal antenna

Take off angle of horizontal antenna For horizontal polarization, the electric field will move sideways on a horizontal plane, while for vertical polarization it will oscillate up and down on a vertical plane

A remote antenna switch

A remote antenna switch An abiding dislike for bundles of cables running on the exterior of my house, so a remote antenna switch seemed like a good idea

5 element yagi antenna for 28.5 Mhz

5 element yagi antenna for 28.5 Mhz Gamma match will be made with a 1/2 "aluminum tube and a 75 cm coaxial piece of RG8 without sock and sheath inside the tube