HF Impedance Transformer Kits

940463387 - HF Impedance Transformer Kits
+3

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

FC-8X-5-61
$39.95
In stock
1
Product Details
Brand: Palomar Engineers
MPN: FC-8X-5
PEP Power Rating (watts): 1.5 KW PEP
Estimated Insertion Loss (db): .025
Input Connector Type: PL-259 male
Output Connector Connector Type: PL-259 male
Ground Connector (Y/N): none
Enclosure Size (LxWxH inches): 3 foot cable

ASSEMBLED COAX FEED LINE CHOKES

Many customers have requested an assembled sleeve unun or balun 1/4" size cable and we have one all completed with shrink tubing and PL-259 end connectors or open ended on one end for a balanced connection such as a beam, dipole, etc.

All you need to add are 2 barrel connectors (Part # DFBC-1) to insert into your coax cable. For best results add one feed line choke at the antenna to keep the RF on the antenna and another feed line choke at the station entrance to reduce the common mode noise picked up by the antenna braid and fed into the station. Rated 500 watts from 50-450 MHz into 1:1 SWR load. Common Mode Rejection Ratio up to 20 dB (over 3 "S" units) - see graph for specifics..


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These impedance transformer kits have been designed for the Do-It-Yourself (DIY) enthusiast and Instructor workshops on baluns and ununs for antenna matching and RFI use.

The impedance transformers are classified in ratios of 2:1 (100:50 ohm) to 16:1 (800:50 ohm).  The outputs can be configured as balanced (Balun) or as unbalanced (unun) with respect to the inputs which are considered all unbalanced coax at 50 ohms.  All impedance transformers are designed for 1.8-31 MHz unless otherwise specified.