5KW Choke balun in waterproof housing, with 2ea SO239 Connectors; Ideal for keeping RF from coming into the shack over the coaxial cable;
When to use this balun:
- When elevating the base of a vertical antenna above the ground.
- When only a few radials are used.
- When the coax run is shorter than the radials.
- When the ground condition is poor.