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Excellent for experimenters who are interested in the lowest radio frequency range of 1 Hz to 20 KHz. Detects natural radio waves.
Use this basic VLF receiver to detect electrostatic waves in the frequency range of 1 Hz to 20 KHz.
Listen to: Tweeks, Whistlers, Hum, Noise, Lightning, Dawn Chourus, etc.
Listen to: Electronic devices noises and hums.
Listen to: Insects in flight, their wings can generate a buzzing hum.
Listen to: Electrostatic chemical reactions.
Detects lightning flashes 1000's of miles away.
This receiver is best used away from powerlines, as it can detect the 60 Hz hum.
Just connect a battery and connect the green (output) wire to the microphone input of any portable (battery powered!) audio amplifier or audio recorder unit.
Features:
It is overload protected and reverse current protected, so you can't burn it out while experimenting if powered at up to 15 volts.( Suggested operating voltage is between 1 volt to 12 volts. Receiver auto-adjusts to supply).
To reduce hum and interference, use a battery to power the receiver only.
Part # VLF-101 is $ 29.95 + $ 15.00 s/h. Ships via flat-rate Priority US Mail.