(SO-239 in with output connectors on top similar to CB-2-2000 balun shown in picture)
Purpose. This balun is designed to match 250 ohms balanced to 50 ohms unbalanced up to 1500 watts PEP power from 1.8-61
MHz. It provides conversion from unbalanced 50 ohm coax to a balanced 250 ohm load/antenna feed point and gives a 5:1 impedance
step-up to reduce VSWR on the coax feed line. The balun is housed in a 4”
x 4” X “2 NEMA weather resistant box with SO-239 coaxial input and a ¼”
stud terminals with wing nut on the top for output
This balun is DC grounded and will bleed off static electricity but it is NOT A LIGHTNING ARRESTOR.
Application. For use on Bruce Arrays and similar antennas with balanced 250 ohm feed point requirements.
Use a coax noise filter to reduce noise from any antenna or a line isolator to electrically isolate the coax braid from becoming part of the antenna.
