Accessories - Baluns, Chokes & UN-UNS

1:1, 4:1, and 6:1 Ratio Voltage Baluns

All models have SO239 input connector
(type N-female connectors available upon request)
80m thru 10m performance
(except wideband versions that cover 80m thru 6m)
Legal limit power handling when matched to a 50 Ohm antenna
All hardware is stainless steel for long lasting performance
Insulated wire pigtails to connect to antenna wires
DC continuity between all connections
Use on both dipoles and beams
Use a 1:1 balun for half-wave dipoles and inverted V antennas
Use a 4:1 balun for folded dipoles and windom type antennas
Use a 6:1 balun for windom type antennas or matching to 300 Ohm ladder line

Model Nos.	Ratio	Freq. Range	Price
BAL-1:1SS	1:1	80m-10m	$39.95
BAL-4:1SS	4:1	80m-10m	$39.95
BAL-4:1WBSS	4:1	80m-6m	$44.95
BAL-6:1SS	6:1	80m-10m	$44.95

All models have SO239 input connector
(type N-female connectors available upon request)
Consider 160m thru 6m performance or 80m thru 6m performance
5000W power handling when matched to a 50 Ohm antenna
All hardware is stainless steel for long lasting performance
Insulated wire pigtails to connect to antenna wires
Use on both dipoles and beams

Model Nos.	Ratio	Freq. Range	Price
RFCB-6U	1:1	80m-6m	$44.95
RFCB-12U	1:1	160m-6m	$59.95

All models have SO239 input connector on both ends
(type N-female connectors available upon request)
Consider 160m thru 6m performance or 80m thru 6m performance
5000W power handling when matched to a 50 Ohm antenna
All hardware is stainless steel for long lasting performance
Use in-line to prevent RF from getting into your shack along the coax

Model Nos.	Ratio	Freq. Range	Price
RFC-8U	1:1	80m-6m	$49.95
RFC-12U	1:1	160m-6m	$59.95

UN-UNS are used to feed long wire antennas where a step-up Impedance ratio is needed to match the high Impedance of an end fed half-wave wire
An UN-UN will work well where the antenna's length is a multiple of a half wave at the lower frequency
Many UN-UN's are used to feed the half-wave wire but use the feed coax shield for the ground reference. This can cause radiation on the coax which is not good , nor a safe thing to have.
Adding an in-line RF choke a distance back from the UN-UN is a good thing to do
We recommend a counterpoise of about 0.05 wavelengths at the lowest frequency
See our new series of off center fed multiband dipoles which are used for the UN-UNS (Click for Details)
Standard center fed input connector is a Type-UHF female (SO-239) but Type-N female is also available

Model	Frequency	Power	Price
4:1-UN-UN	7 - 30 MHz.	1000W	$49.95
6:1-UN-UN	7 - 30 MHz.	1000W	$49.95
9:1-UN-UN	7 - 30 MHz.	800W	$54.95