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#31 Material Snap-On Common Mode Choke for Coax or Cables

  • .750 inch I.D. #31 material RF common mode choke for coax or control cable.
  • #31 material offer the highest impedance available to the HF bands.
  • The choke decouples the antennas control cable and coax, so the antenna will not see either as part of the antenna or as a radiating counterpoise that will cause SWR issues.
  • It will help stop the RF common mode current that travels on the outside of the coax from entering your vehicle.
  • It is very important to add these chokes to the inside of the vehicle at the point of entry, especially when transmitting over 100 watts.

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    We specialize in custom made amateur radio antennas & accessories for mobile, home, and portable settings.

    Build with top-rated, quality components, we offer Lifetime Warranties on all our products.


    Phone: 623-326-8780

    1614 E Dolores Rd. Phoenix, AZ 85086