Using a PC with soundcard as a VLF receiver

The PC is used to convert the VLF signal into a souncard runs at 44100 Hz nominal sample rate
post 23 Dec 2021


Antenna 136KHz Links

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Variometer Design
A variometer consists usually of two coaxial coils, connected in series, where the coils relative position can be varied in some way

VLF The stealth antenna
the passion for radio listening on HF and lower band, down to VLF

Vertical antenna with inductive toploading
136kHz antenna by placing a part of the loading coil at the top of the vertical part

Very Low Frequency Receiver
Very low frequency or VLF is the ITU for radio frequencies RF in the range of 3–30 kHz, corresponding to wavelengths from 100 to 10 km, respectively

VLF converter
un mio circuitino che ho a lungo utilizzato per l'ascolto delle onde lunghe

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PSK31 software Prefix World Propagation prediction Qrp low power QSL Printing QRSS Amateur VLF operating Radio old Museum Radio portal Surplus radio Sstv Photo SWL Shortwave DX Radio Telegraph Morse code VHF Activit Web SDR

Radio transceiver

Icom 706 Icom 7000 Icom 9700 Icom 7851 Kenwood TS-850 Yaesu FT 817 Yaesu FT 857 Yaesu FT100 Yaesu FT 1000mp
10 m| 12 m| 15 m|
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23 cm| 30 m| 40 m
6 m| 70 cm| 60 m| 80 m| 160 m| 136 khz| 630 m|
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