EARTH RECEIVER AND LOW FREQUENCY

ELFRCV

Extremely Low Frequency Receiver

Extremely Low Frequency Receiver ("Earth Receiver") for listening to atmospheric radio phenomena such as Sferics, Whistlers, Tweeks, Dawn Chorus, and Lightning effects. Receives the 500 Hz to 12 kHz ELF (Extremely Low Frequency) range. Works with any portable stereo headphones, or a speaker. An interesting science or experimental project. Kit includes case and hardware. Uses a 0.3 to 1 meter (12 to 30 inch) whip antenna, scanner or HT antenna, or use our NC1490 or NC1498 whip Antenna (sold separately)

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106.95  Assembled and Tested

 

64.95 Kit

LFCON

Long Wave & LF-VLF Converter for SW Receivers

Long Wave LF VLF Receiving Converter for 10 - 535 KHz reception. Enables LF & VLF reception on an HF receiver tuning the 4 MHz range. Xtal controlled, with high impedance active antenna input. Works with short vertical whip antenna 0.5 to 3 meters. Has DC power fed from coaxial cable via included DC Block assembly. Small size, die cast cases included. Can be externally mounted for lowest noise pickup.

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117.95 Assembled and tested

77.95 Kit

 

ACTANT

Weatherproof

Active Antenna

MK2 Version

VLF to HF

Low Noise Active Antenna for 10 kHz to 30 MHz AM/SW application

Enables good low noise radio reception in the VLF, LF, MF and HF  (10 to 30,000 kHz) spectrum with a very small antenna about 1 meter in length. Useful where large outdoor antennas are not feasible or prohibited.. Has performance approximating a 25 to 50 ft. long wire antenna, but uses a vertical whip antenna 0.5 to 1.5 meters long. Often gives AM and Low Frequency reception superior to a 100 ft (30 meter) long wire antenna. Mounts in conventional PVC plastic pipe and is easily made completely weatherproof. Has built in Isolation choke balun for lowest noise pickup. DC power and signal fed via single CATV type 50 to 75 coaxial cable for a simple outdoor installation. Can feed several receivers using a splitter. Includes power supply transformer (120 V 60 Hz USA/Canada version only) and parts for DC block assembly. Easily disguised as a vent pipe or garden stake, etc.

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USA/Canada
Kit   72.95

Export version:
Kit   62.95
[no power transformer included]

Available assembled & tested
(USA/Canada only)
110.95

LF90

LOWFER and Amateur LF Transmitter for 135-190 kHz

1 Watt LF Transmitter for 135-190 kHz Amateur and Part 15 LOWFER hobby operation. The LF90 Operates from 12V to 14V DC power supply. Low drain allows operation from batteries or solar power. Transmits CW, QRSS, and BPSK signals. Uses a PLL synthesizer with 10 Hz (0.01 kHz) resolution. Manual or variable speed automatic beacon operation from built in identifier and message generator. Field programmable, no computer required.

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KIT 139.95

Assembled And Tested PC board

199.95

MF90

MEDFER and Amateur MF Transmitter for 1400-2000 kHz

1 Watt MF Transmitter for 1800-2000 kHz Amateur and Part 15 1400-1710 kHz 100 mW. MEDFER hobby operation. The MF90 Operates from 12V to 14V DC power supply. Low drain allows operation from batteries or solar power. Transmits CW, QRSS, and BPSK signals. Uses a PLL synthesizer with 100 Hz (0.1 kHz) resolution. Manual or variable speed automatic beacon operation from built in identifier and message generator. Field programmable, no computer required. The MF90 is a higher frequency version of LF90 with size and physical appearance. MF90 MEDFER version (1400-1710 kHz) available assembled only.

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KIT 139.95

Assembled And Tested PC board

199.95

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NORTH COUNTRY RADIO

PO Box 200, Hartford NY 12838-0200

EMAIL: support@northcountryradio.com
Tel 518-854-9280
Internet http://www.northcountryradio.com