Long the standard of the industry the W2DU baluns are built to last!
The W2DU is the preferred Balun of Amateurs worldwide. W2DU’s operate at a low VSWR from 1.8 to 30 mHz,
W2DU Baluns use a ferrite sleeve to choke RF current on the cable shield!
The W2DU Maxi-Baluns owe their extremely high power capability to the fact that they contain no ferrite cores to saturate. Even at high SWR levels, the W2DU Baluns won’t generate harmonic radiation. The internal feed line passes through ferrite beads which prevent RF current from flowing on the coax shield.
50 ohm 1:1 HF (1.8-30 mHz).
At 10 mHz, the HF model handles over 10 KW PEP at VSWRs up to 2:1.
Each W2DU Balun has a built-in lightning arrestor, hang up hook, and 600 lbs of pull-apart strength in a weatherized, rugged package using only stainless steel hardware.
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I bought this to have a 80-40 dipole built by a friend. The balun arrived in a timely fasion and is well built. the antenna works great flat swr.