TO ORDER: Call 903-558-1007
VLF Whistler Receiver

Long range VLF whistler receiver

vlf whistler receiver

Watch the short video to hear some of the sounds this receiver picks up.

This sensor detects the odd and beautiful electrical sferic waves that the earth makes in the range of 30 Hz to 10 KHz.

These waves come from lightning and geomagnetic activity and from near-space.

Whistlers are lightning flash energy that gets ducted into magnetopheric waveguides in the ionosphere. You can hear these rare 1 to 2 second long strange whistling tones made by the earth with this receiver.

More common are the beautiful sounding Tweeks, which are similar to whistlers but are of very short duration, about a 10th of a second, instead of several seconds.

Strange sounding waves from space can be heard, such as Dawn Chourus, which sounds like birds chirping at local time just before sunrise.

You will need to listen away from power lines, as man-made electrical fields can be heard as a buzzing hum.

Insects such as bees can be detected from their buzzing electrical field around their wings.

Hummingbirds can also be detected with their humming wings electrical fields.

The -constant- background crackling sounds day or night you can hear with this receiver are powerful global lightning strikes.

Has two wire connections for any 1.5 volt battery (you can use "AAA", "AA", "C", or a "D" battery type.) and supplied with audio output RCA type cable.

Reverse polarity protected, overload protected, static protected.


Part # Price
WR-1A1-RCA (with RCA cable, shown.) $ 65.00 + $ 20.00 s/h
WR-1A1-3W (with 3-wire connection [shown in video]) $ 65.00 + $ 20.00 s/h

TELEPHONE (903) 558-1007 to place orders.


Save and refer to these online instructions below. There are no printed paper instructions provided.

How To Use WR-1A1


Wire the unit as shown above.

It is designed for an operating voltage of 1.5 volt. Any 1.5 volt battery will work for power. An "AA" or "AAA" battery will work fine for weeks of operation. You can use a battery holder or simply tape the wires to the battery terminals.

It is designed for hand-held use, but also can be mounted on a pole outdoors.

The sensor can also be mounted on a 5 to 10 foot tall pole away from power lines, phone lines, and trees.

Best listening conditions are at night and away from power lines. You may want to find a campsite away from power lines and electrical noise. You can take the sensor in the daytime to check out the site for quietness. If the site has no power line hum noise, you will have beautiful reception of the natural sferic waves from sunset to sunrise.

To record the sounds, plug the cable into the microphone or LL jack of any analog tape recorder or digital audio recorder, having a good quality sample rate (music quality setting is best usually). Make sure to hold or earth-ground the sensor from the black battery wire to improve reception.

More info on Whistlers: Whistler (radio) - Wikipedia