Balun 1:49 100W 49:1 Magnetic Ring Barron for End Fed Short wave Antenna HAM Natural Resonance Frequency 7/14/21/28MHz. - 1:49 long-line dedicated balun. - 1 X1:49 long-line dedicated balun. Barron is already waterproof, and users only need to waterproof between the M seat and the cable connector.
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