1/1 Special Chokes/Line Isolators

UV protected enclosure, Fibre Glass or Polycarbonate options

Mega “K” Ni/Zn material cores 4 times the surface area of single FT240 cores

Up to 5000 watt pep handling with multi-cores and RG303 or RG142 double screened PTFE coax

Fully resin potted

Choice of  7/16 DIN EIA, “N”, BNC or SO239 connectors

Mini low power versions available

Above shows our “K” core on left and Amidon FT240 on right

Protected for life in resin


Super 1/1 Line Isolators/noise reduction

Made with 5 type 43 cores and RG316 PTFE coax these units are superb in reducing line noise. Over 6 db of noise reduction has been proven using multiples of these units in a commercial situation, great Z Mag attenuation over the HF spectrum above 7MHz. UV protected enclosure, rubber gasket seal, resin potted for long life these are the best you will find. Produced by professional RF people.

Available with BNC, “N” type of SO239 sockets, power handling max 400 watts pep. MOQ 10 units, samples available and held in stock.

Custom Configurations

Customised units can be made to your specification/requirements including options of ceramic insulators and static discharge arms or just straight through connectors 7/16 DIN EIA, “N”, SO239 or BNC, Suitable for 1.5 > 30MHz custom made for max attenuation at given frequency. Prices from £200.00

Mil Spec’ RG142 double screened PTFE coax with 7/16 DIN EIA Sockets, IP68 rated fully resin potted variants up to 5kw pep.

The finest line isolators available and at the right price!

Lower power versions with PTFE SO239 or “N” type sockets. 

High power versions with 7/16 EIA DIN connectors. All our Chokes/Baluns/Isolators are resin potted, samples held in stock

Multiple bus earthing and multiple serrated locking washers used for the RG142 double screened PTFE coax to give superb bonding

In Line Units

A superb range of in-line units designed for many applications especially installation on Military Log Periodic beam antennas. Can be installed on the boom of the antenna or in line on the feeder. Applications include, feeder line noise reduction, returned RF attenuation (zMag), antenna symmetry, PTFE coax (RG142 double screened) with Ni/Zn special cores. Multi heat shrinked for protection and housed in a heavy duty UV black sleeve. Power handling HF >  3Kw pep,  30MHz > 450MHz 2Kw pep. Various connectors to suit requirements. Options: Mounting brackets for boom mounting (isolated), open ended coax to connect to beam terminals, many different plug/socket options available including “N”, BNC, SO239/PL259, TNC, “C”. NOTE THAT THIS PRODUCT IS ONLY SUITABLE ABOVE 7MHz: MOQ x 10