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Come trasmettere a 137 KHz
- Un finale di potenza per onde lunghe a mosfet che ho provato a realizzare
post 14 Apr 2026
Antenna 136KHz Links →
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
70
With two crossed loops, one North/South, one East/West, radio-direction finding on VLF is possible
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
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
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