Tubular feed line chokes (a.k.a. coax line isolators) are convenient for insertion in the coax feed line at the antenna feed point or the station entrance and they include an optional ground lug and static bleeder for attachment to a ground rod. Very useful as coax line isolators along a long coax feed line to break up resonances every 1/2 wavelength. Very wide bandwidth, up to 45db common mode suppression ensures transmitted signal stay on antenna when installed at antenna feedpoint or that common mode coax braid noise is reduced when receiving weak signals when installed at radio end of coax. 500/1500/5000 watt options and various frequency ranges available.
VLF CONVERTER LETS YOU ENTER THE WORLD OF VLF RADIO
- Gives reception of 1750 meter license-free band.
- Receives navigation radio beacons, standard frequency broadcasts, ship-to-shore, and European long wave broadcast band.
- Convert VLF to 80 meters. Use with any receiver covering 3.5 - 4 MHz.
The VLF band extents from 10 to 500 KHz and is not received by most commercial receivers. Now you can receive the entire band on your short wave receiver or 80 meter ham band receiver.
Model VLF converts to 3510-4000 KHz for use with most ham band receivers.
The converters feature antenna bypass when turned off, LED power indicator, low current, 9V DC operation, and are housed in attractive brushed aluminum and black vinyl cabinets.
SPECIFICATIONS:
Power: 9 volts @ 12 ma
Controls: On-off-bypass switch
Connectors: UHF type (SO-239)
Filter Rejection: 50 db at 1000 KHz
IF Rejection: 85 dB
Size: 5 x 11 x 13 cm (2 x 41/4 x 5)
Weight 300 gram (11 oz)