MINI-CHOKER Coax Line Isolator, 1-61 MHz, 500 Watts PEP, -35Db Common Mode Rejection

SKU MC-1-500-50
In stock
Product Details


- Uses proprietary Multi-Mix, Multi-Core, Multi-Turn(TM) ferrite technology for maximum choking (up to -35 dB common mode noise rejection) and maximum bandwidth

- 500 Watts PEP, 50 ohm SO-239 connectors In/Out, 1-61 MHz

- Works for all coax fed antennas from 1.8-61 MHz (160-6 meters) - excellent for multi-band beams, verticals, dipoles, magnetic loops and highly unbalanced off center fed antennas.

- 2-5 times more common mode noise rejection, wider bandwidth and higher power then competing isolators

MINI-CHOKER feed line chokes are used to suppress common mode current carried on the outside of the coax braid which is often responsible for receiver noise and RFI in the receiver/transmitter. These chokes are very useful for suppressing RFI common mode current at the antenna feed point, at 1/2 wavelength intervals along the coax feed line and also at the entrance to the radio station.

This choke is available with a SO-239 input/output and ground/static bleeder stud (optional) for attachment to a ground rod. Use an isolator every 1/2 wavelength for the antenna operating frequency (include velocity factor in calculation). Use the ground lug option for long coax antenna feed lines (over 1/2 wavelength at the operating frequency of any antenna system in the near field of the coax).

For Higher Power needs use our MAXI-CHOKER 3KW version.

Save this product for later

Summer Specials

RFI Icom 7300 2 Product web 2 - Store
Suppresses TRANSMIT RFI and RECEIVE Common Mode Noise
PEI BAS 500 2 web - Store

80-6 Meters End Fed Antenna - 71' - 500 Watts - Portable or Stealth


MC 1 3000 Product 3 web - Store
Coax Choke/line isolator for all antenna types, 1-61 MHz, 3KW PEP
Palomar Engineers Mini Choker line isolator product - Store

Coax Choke/Line Isolator for all antenna types - 500 Watts, 1-61 MHz


Palomar Engineers Coax Noise Filter CMNF-500-50
Reduces Coax Common Mode Noise up to 6 "S" Units, 1 to 61 MHz
FSCP 31 22 Lebel for web - Store
Our BEST VALUE Combo Snap On Pack - all popular sizes, 1-300 MHz
F240 31 10 Label Page 1 labels - Store
Best Deal on Ferrite Toroids - Buy 9 at regular price and get 1 FREE!
FSB31 .5 30 single label for web 2 1 - Store
Our MOST ECONOMICAL 1/2" Snap On Ferrite Bulk Pack