This is exactly the same balun as used in our Spiderbeam Yagi antennas: a W1JR type coax choke-balun with extremely good balancing properties on 10 - 28 MHz and quite good balancing properties on 3.5 - 7 MHz. It is well suited as a good all-round balun for all 50 Ohm antennas in this frequency range. It uses high-quality components (Fair-Rite ferrite toroid, Teflon-insulated coax cable, rugged UV resistant plastic enclosure).
Note: all parts for building this balun are included in all of our Spiderbeam Yagi antenna kits.
We are offering it here as a high quality stand-alone product for any other 50 Ohm antenna you may wish to use it with.
Length of the housing: 120mm
Length of the aluminum bar: 200m
Weight: 510g (18 oz.)
For antennas with an SWR < 3:1 - up to 2000W
For antennas with an SWR > 3:1 - up to 1000W