Common Mode Chokes, Line Isolators

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1:1 Current Balun

SKU BA-1-1000

$24.95

On Sale

Coax Inline Common Mode Choke Unun - 500 Watts 25-300 MHz- 10, 11, 6, 4, 2 Meters

SKU FC-8X-3-31

List price ~~$39.95~~

Save 30%

$27.95

Coax Inline Common Mode Choke Unun - 500 Watts 50-450 MHz

SKU FC-8X-5-61

$39.95

MAXI-CHOKER Coax Line Isolator/Balun, 1-61 MHz, 1.5/3KW, SO-239 In/Stud Output, FLAGPOLE OCF, G5RV, ZS6BKW, BN4000 Replacement, Ladder Line-Coax interface

SKU MC-1-1500LL

$89.95

MAXI-CHOKER Coax Line Isolator/Choke, 1-61 MHz, 1.5/3KW/5KW, up to -60 Db Common Mode Rejection, Static Bleeder Option

SKU MC-1-1500

$89.95

MINI-BALUN 1:1 Coax Interface to Ladder Line, Dipole elements, 500 Watts PEP, up to -38Db Common Mode Rejection, 1-61 MHz, Flagpole, Dipole, Beam and G5RV/ZS6BKW Antennas

SKU MB-1-500SS

$69.95

MINI-CHOKER Coax Line Isolator, 500 Watts PEP, up to -38Db Common Mode Rejection, 1-61 MHz, 1:1 Unun

SKU MC-1-500-50

$69.95

Maxi-Choker, 1:1 Line Isolator 3KW, 7-54 MHz Optimized for Wide Band Log Periodic, HF & 6M Beams. Noise Suppression up to 38 dB

SKU MC-1-3000LP

$109.95

RFI Common Mode Noise Filter Kits for Generic Antenna Switches - Isolate Non-Selected Coax Braid Noise!

Suppress Unwanted Noise & RFI

SKU RFI-AS-GEN-2

$129.95

These RFI kits are specifically selected to cure most household computer device RFI problems. It contains ferrite toroids for AC or DC power supply protection and Snap On ferrite spli beads selected to eliminate RFI from 1 to 1000 Mhz. The beads are easy to use, don’t require modification of the protected equipment and work in almost all cases, even when plug-in filters fail.

Typical Installations


Ethernet Cable on F-240 Toroid – 7 turns	Ethernet Cable on FSB-1/2 – 3 turns for 9X Impedance	Ethernet Cable on FSB-1/4
AC Cable on F-240 Toroid – 6 turns	DSL Modem DC Power Supply on F114-43 Toroid – 5 Turns