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Balun Designs

Model 1435 - 1:4 Unun (12.5 to 50 ohms) 5kW

$83.95

Model 1435 - 1:4 Unun (12.5 to 50 ohms) 5kW

$83.95
SKU:
1435
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Product Description

12.5 Ohms unbalanced to 50 Ohms unbalanced

This unbalanced design is excellent for matching antennas such as inverted L's, short vertical wires and other low feedpoint impedance designs. Windings for this model feature custom made coax to provide high power capability at low impedance.

Unlike Baluns, Unun's (unbalanced to unbalanced) provide impedance transformation for antennas that are naturally unbalanced because of their construction configuration. Even though the unun's appear small is size, they are able to handle very high power (matched condition) because of their excellent efficiency.

  Many other unun ratios are available by contacting us via the methods shown under the About Us tab.

Specifications



  Core Material   Custom mix low permeability ferrite by Fair Rite Products for maximum bandwidth.
  Core is coated and sealed for long term durability.
  Winding Type   Individual core wound with coax configured as a 1:4 unun.
  Winding Material   Custom hand made low impedance coaxial cable.  
  Power Rating   5kW
  Useable Frequency  1 - 31 MHz
  Insertion Loss  Less  than .02db
  Connectors   SO-239 connectors are gold center conductor with Teflon insulation.
  Studs and eyebolts are 1/4 inch.
  Alternate connectors and Mounting Options are available in the Accessories section.
  Hardware   All Stainless Steel
  Enclosure Type   NEMA rated 4x marine grade junction box for outdoor installations.
  Cover utilizes integral neoprene gasket for weatherproof integrity.
  Dimensions   4x4x2 inches for main body of unit
  Dimensional Drawing of Standard Enclosure
  Additional Info   Very high efficiency (98-99%) 


Installation Notes