1:1 Baluns/Ununs/Chokes

Dipole/OCF/ZS6 Antenna Wire Kits (160-6 meters)

SKU DWK-6
$22.95
Dipole Band
1
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Dipole/OCF/ZS6 Antenna Wire Kits (160-6 meters)
Product Details
Brand: Palomar Engineers, Inc.
Country/Region of Manufacture: USA

Dipole Antenna Wire Kit for dipoles from 160 meters to 6 meter. Includes 2 end insulators, #14 Insulated stranded copper wire and spade lugs and heat shrink for lugs for attachment to an optional balun (use 1:1 balun for most dipole arrangements).

The OCF Antenna Wire kits are for 80 meters (95 feet + 40 feet) that covers 80-40-20-17-15-12-10-6 meters or 40 meters (12 feet and 53 feet) that covers 40-20-17-15-12-10-6 meters or 160 Meters with additional tuning stub for 40/20. See OCF Manuals in Antenna downloads section for additional dimensions and setup.

Insulators are a very stealthy, strong, pair of 2 PVC, 2 1/4" long. 1" wide. 1 1/8" hole separation wire antenna insulators and may be black, gray or white depending upon inventory


HF 1-61 MHz coax feed line common mode chokes

1:1 feed line Chokes (also known as feed line current chokes, common mode chokes, line isolators, current mode chokes, and 1:1 baluns/ununs) are available in kit form or assembled form in a weatherproof Current Unun and Balun Enclosure which we call a CUBE™. All 1:1 chokes are ferrite based and are designed for 50 ohm coaxial cable input and 50 ohm output. 1:1 Ferrite toroidal or bead chokes have a higher choking impedance than our popular Sleeve Chokes and various models are available for specific frequency ranges and power levels.

1:1 Chokes are useful for choking common mode currents that may flow on the exterior of the coax cable shield while allowing the signals on the interior of the shield and the center conductor to flow unaffected and keeping the common mode current on the antenna. They isolate the coax shield and prevent it from becoming part of the antenna system.  

1:1 Chokes are useful between balanced lines for center fed dipoles at their fundamental frequency (468/f (MHz), beam antennas with a 50 ohm balanced driven element, G5RV, loops, yagis, NVIS antennas, mobile installations, portable antennas and anywhere common mode current (or RFI) is a problem.  They are also helpful between transmitter and linear amplifier or between linear amp and antenna tuner or as isolation chokes where higher choking impedance is needed (in the range of 2K-7K ohms). 

1:1 Chokes are also very useful as feed line current chokes at the “radio end” of the antenna (we call them coax noise filters) where they choke/filter common mode current induced onto the coax shield from radiated waves (from your antenna, and other sources such as DSL routers, computer devices, plasma TVs, etc. originating in your house or your neighbor’s house).  For RFI issues see RFI/EMI Solutions for general use or for specific radios and devices.  

For best results we recommend a 1:1 choke at the “antenna end” of the coax and a coax noise filter at the “radio end” of the coax. (A side benefit is a reduction in noise level caused by common mode currents). 1:1 chokes are also available as Sleeve Chokes (Slip on or Snap on) for ease of installation and light weight on the antenna.