AC Power Cord Choke + Power Cord- 120VAC RFI Range: 1-30 MHz, -28 dB Noise Reduction, 15 AmpProduct DetailsMPN: JC-1-1500Country/Region of Manufacture: USASimple AC Power Cord Noise Filter Choke+ Power Cord included
The simplest, most cost effective AC power cord noise filter is a ferrite ring installed as shown in the picture (at the appliance AC input) to stop feed line appliance radiation back into the AC power line or into the radio/appliance to suppress common mode power line noise current on the AC power cord or to suppress common mode noise present on the power lines from degrading the performance of the attached device.
Keeps RFI out of appliances like TV, radios, computers, etc and like wise keeps noise generated by electronic devices from feeding the noise back into the AC power line and affecting other devices plugged into the same lines.
These chokes are cheap, easy solution for RFI issues. Just replace your existing power cord with these pre-wound cables and enjoy interference free operation.
Got your own AC power cable that needs a ferrite ring only? The use ACCF-1.4 ring. This ring also works well on switching power supplies (use 1 on AC input and another on the DC output or just order kit RFI-SMPS).
HF 1-61 MHz coax feed line common mode chokes
Simple AC Power Cord Noise Filter Choke+ Power Cord included
The simplest, most cost effective AC power cord noise filter is a ferrite ring installed as shown in the picture (at the appliance AC input) to stop feed line appliance radiation back into the AC power line or into the radio/appliance to suppress common mode power line noise current on the AC power cord or to suppress common mode noise present on the power lines from degrading the performance of the attached device.
Keeps RFI out of appliances like TV, radios, computers, etc and like wise keeps noise generated by electronic devices from feeding the noise back into the AC power line and affecting other devices plugged into the same lines.
These chokes are cheap, easy solution for RFI issues. Just replace your existing power cord with these pre-wound cables and enjoy interference free operation.
Got your own AC power cable that needs a ferrite ring only? The use ACCF-1.4 ring. This ring also works well on switching power supplies (use 1 on AC input and another on the DC output or just order kit RFI-SMPS).
1:1 feed line Chokes (also known as feed line current chokes, common mode chokes, line isolators, current mode chokes, and 1:1 baluns/ununs) are available in kit form or assembled form in a weatherproof Current Unun and Balun Enclosure which we call a CUBE™. All 1:1 chokes are ferrite based and are designed for 50 ohm coaxial cable input and 50 ohm output. 1:1 Ferrite toroidal or bead chokes have a higher choking impedance than our popular Sleeve Chokes and various models are available for specific frequency ranges and power levels.
1:1 Chokes are useful for choking common mode currents that may flow on the exterior of the coax cable shield while allowing the signals on the interior of the shield and the center conductor to flow unaffected and keeping the common mode current on the antenna. They isolate the coax shield and prevent it from becoming part of the antenna system.
1:1 Chokes are useful between balanced lines for center fed dipoles at their fundamental frequency (468/f (MHz), beam antennas with a 50 ohm balanced driven element, G5RV, loops, yagis, NVIS antennas, mobile installations, portable antennas and anywhere common mode current (or RFI) is a problem. They are also helpful between transmitter and linear amplifier or between linear amp and antenna tuner or as isolation chokes where higher choking impedance is needed (in the range of 2K-7K ohms).
1:1 Chokes are also very useful as feed line current chokes at the “radio end” of the antenna (we call them coax noise filters) where they choke/filter common mode current induced onto the coax shield from radiated waves (from your antenna, and other sources such as DSL routers, computer devices, plasma TVs, etc. originating in your house or your neighbor’s house). For RFI issues see RFI/EMI Solutions for general use or for specific radios and devices.
For best results we recommend a 1:1 choke at the “antenna end” of the coax and a coax noise filter at the “radio end” of the coax. (A side benefit is a reduction in noise level caused by common mode currents). 1:1 chokes are also available as Sleeve Chokes (Slip on or Snap on) for ease of installation and light weight on the antenna.