Utilizing high performance RG-400 coax, these choke can provide thousands of ohms of choking impedance (depending on frequency desired and number of winding turns).  Choke kit is a KIT (U-wind-it, don’t sweat) and comes with connectors factory installed for easy installation.  Suitable for all HF bands 160m to 10m; choke can be built to your target frequency for maximum choking ability to solve your RFI issues.

Remember that RG400 is high end coax:  TWO silver plated braid shields, teflon dielectric, and silver plated center conductor.  This type of coax is absolutely needed as it can handle the tight radius bends around the toroids AND high power.  The UHF connectors are a perfect match:  Silver plated brass, teflon insulation, soldered in place and heavy adhesive shrink tube seal.  Easily handles legal limit power.

Includes  6’ coax assembly,  2.4” OD toroid, zip ties, and winding instructions.

Ever had trouble with RF knocking out your computer or the connection between the radio, computer, or other computer controlled interfaces?  Stop that RFI with our USB cable choke!  Like all of our products, cable is USB 3.0, made of high quality 28 and 24 gauge copper wire, with a foil shield and braid shield.  One end is A male, other is A female for easy connection into your existing shack layout with minimal wire related messes.

Comes with:  6’ USB cable,  2.4” OD toroid, zip ties, and winding instructions. 

Ethernet...a blessing and a curse (especially for hams!)  Ethernet is a notorious polluter of the radio spectrum, especially if power over ethernet (POE) is used, and difficult to knock down.  Ethernet choke kits are specially designed by a team of RF professionals and thoroughly tested on gig speed internet without interrupting, slowing, or loss of signal.  Flat cat6 ethernet cable is the key, which handles the tight radius around the ferrite without disturbing the pair geometry.  Achieving 25+dB of attenuation is easy by selecting the right ferrite mix and following the winding guidelines.  Multiple chokes can be run in series using different mixes to cover more radio spectrum and increase attenuation.  Comes with 5’ cat6 cable, ferrite, zip ties, and female to female inline coupler to make installing the choke super quick. 

Similar to the choke kit above but containerized for easier outdoor installation.  Utilizing high performance RG-400 coax and comes in a weatherproof box for outdoor use.  Choke is assembled, tested and ready to be plugged into an existing installation with so-239 connectors on both ends.  Suitable for all HF bands 160m to 10m; built to provide 4000-5000 ohms of choking impedance through the HF bands with mix 31 toroid.

Remember that RG400 is high end coax:  TWO silver plated braid shields, teflon dielectric, and silver plated center conductor.  This type of coax is absolutely needed as it can handle the tight radius bends around the toroids AND high power.  Easily handles legal limit power. 

Both the low power and legal limit versions come with an internal gas discharge tube and bleeder resistor.  The 1600v rated gas discharge tube shunts harmful power surges to ground, and bleeder resistor harmlessly provides a drain path for static to ground, functioning continuously whether antenna is in use or not.  NOTE: Product must be properly grounded! This is NOT a substitute for proper bonding, grounding, or installed lightning arrestors; it does offer additional protection at the point of installation. 

Now available:  Mounting bracket to attach to any round member such as aluminum antenna boom, tower leg, etc.  Made from laser cut aluminum, comes with stainless holes clamps, ground tab (which connects ground stud on box to mounting bracket), and hardware.