Open Box Hy-Gain BN-4000B High Power Balun for Beams SN112633

Open Box Hy-Gain BN-4000B High Power Balun for Beams SN112633. Box has writing on it. 

The BN-4000 is a current-type balun whose primary function is to provide the proper current paths between unbalanced coaxial cable and a balanced antenna feedpoint. The BN-4000 uses ferrite beads over a short length of coax cable to choke-off the flow of RF on the outside of the coax shield.

Specifications:
Frequency: 1 - 54 MHz

• Loss: < 0.1dB
• Max Power: 4000 Watts PEP
• Weight: 1.3 lbs
• Input Connector: SO-239
• Output Connector: std terminal lugs