How to make a 1:1 air core balun for use with an HF wire dipole antenna. Part 2: Winding the coil.
Video Rating: 5 / 5
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RF Isolator Balun MFJ-915 Choke For Ham & CB Radio HF Antennas
- * Eliminate Stray RF from Amateur & Cb Radio Antenna Feedlines.
- * Helps Reduce Interference & TVI.
- * For 1.8-30Mhz HF.
- * 1:1 , 50 Ohms; Accepts Coax cables with PL-259 Connectors.
The MFJ-915 RF Isolator is a 1:1 Current Balun, designed to be placed in line with any 50-Ohm coax.
The RF Isolator is effective from 1.8 to 30 MHz. It was designed to improve the performance of all amateur stations, fixed or mobile.
MFJ-915 will reduce or eliminate stray RF often found on coax. This stray RF can cause burns, TVI, interference and other problems with electronic equipment in ham-shacks and vehicles.
Stray RF also results in a loss of radiated power from the antenna, w
List Price: $ 29.99
Price: [wpramaprice asin=”B009AECB4K”]
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[wprebay kw=”ham+shack” num=”0″ ebcat=”-1″]
This is a 5KW 4 to 1 Hy Power Antenna Company Guanella Current balun. This is a simple way to test a 4 to 1 balun. Core material is also important when building a balun. Hy Power Antenna Company has done all of this for you.
Video Rating: 5 / 5