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.
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.