This is smaller (economy version) of a popular CMC-130-3K. This product has 5000-10,000 Ohms of CMI (Common Mode Impedance) on 1.8-30MHz while maintaining a Resistive part of CMI for more than 25MHz of the frequency spectrum.

• Perfect to cure RFI/EMI problems.
• Great noise suppressor!
• Common-mode attenuation is up to ~40dB max. (measured in 50 Ohms systems)
• Zmag-Impedance Magnitude     
• Rs-Series Choking Resistance      
• Xs-Series Choking Reactance

It is a cure for noisy locations, reduce the noise floor of your receiver by several S-units instantly.  If you have unbalanced antennas such as OCF dipole or your antennas close to your home, adding one CMC130S-3K will greatly reduce RF Interference problems on your equipment and 120/220V wiring inside your home. We do not claim “one size fits all” but actually, we design, measure and make such products. Our CMC-130s-3K has huge Resistive values of Common Mode Choking Impedance from 1.8-30MHz, click the chart on the side for actual measurement data.

Unlike other companies, we do not claim unrealistic impedance values or frequency coverage. Most important, the value of CMC-130S-3K Common Mode Choking Impedance and its Resistive (Rs) part is always higher than Reactive part (Xs) over the working bandwidth. This parameter, Rs>Xs ensure that our CMC will NOT increase common mode currents as could with inferior coaxial cable chokes.

Only chokes with Resistive (Rs>Xs) CMI- Common Mode Impedance stops and dissipate unwanted RF or noise coming to your equipment for sure.

See the video of CMC’s in action at AC0HF station

CMC-130S-3K Features:

• SO-239 PTFE (Teflon) Connectors which produce no impedance bump but th