Common Mode Noise Filter – Coax

CUBE Feed Line Choke, 1:1, 1.5KW PEP, .5-5 MHz, AM Broadcast, 160 and 80 Meter Common Mode Noise Filter, -42dB CMRR

SKU CU-1-1500BC
In stock
Product Details
Brand: Palomar Engineers
MPN: CU-1-1500BC
Effective Frequency Range (MHz): .5-5 MHz
PEP Power Rating (watts): 1500
Estimated Insertion Loss (db): .10
Input Connector Type: SO-239 female
Output Connector Connector Type: 2 top studs or side eyebolts and halyard hoist or SO-239
Ground Connector (Y/N): none
Enclosure Size (LxWxH inches): 4 x 4 x 2

1500 Watt Rated 1:1 CUBE™ Choke - .5-5 MHz

Th CU-1-1500BC unun is useful as common mode feed line chokes or coax to antenna interfaces. SO-239 output models can also be used with balanced antennas if a short coax cable “pigtail” is used on the output and connected to the antenna. Rated 1500 Watts PEP from .5-5 Mhz. Use as line isolator, antenna interface, or as a common mode choke to keep RF on the antenna and off the outside of the coax braid. Much more effective then our sleeve feed line chokes due to multi-turn toroidal topology using high permeability ferrite cores which provides a higher choking impedance over a broad frequency range. Typical choking impedance of 2K-10K from .5-5 MHz reduces common mode current! For most effective results, use 1 choke at the antenna and another at the radio end of the coax. Helps reduce noise floor too by choking off common mode neighborhood noise picked up on outside of coax braid.

Available in 1.5K and 5K PEP models

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Typical user comment:

The filter was quite effective. Was surprised that it actually reduced the noise level
more than the signal so S+N/N improved by 1.9 S units.