Antenna Switch RFI Solutions

Store/RFI Solution Kits/Radio Communication RFI Solutions/Antenna Switch RFI Solutions

Coax antenna switches generally only switch the center conductor of the coax and all the coax braids remain connected in parallel summing the common mode noise off ALL coax lines onto the coax selected - this means you may be picking up common mode noise from coax lines that are not even connected to the coax antenna selected. The only practuical solution is to isolate the coax braids from each other BEFORE they connect to the antenna switch as shown in the picture for a simple 2 position antenna switch.

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RFI Common Mode Noise Filter Kits for FLEX RADIO Antenna Genius Antenna Switches - Isolate Non-Selected Coax Braid Noise!

Suppress Unwanted Noise & RFI

SKU RFI-AS-FLEX-2

$179.95

RFI Common Mode Noise Filter Kits for Generic Antenna Switches - Isolate Non-Selected Coax Braid Noise!

Suppress Unwanted Noise & RFI

SKU RFI-AS-GEN-2

$129.95

TUBE feed line chokes/Line Isolators are used to suppress common mode current carried on the outside of the coax braid which is often responsible for receiver noise and RFI in the receiver/transmitter. These chokes are very useful for suppressing RFI common mode current at the antenna feed point, at 1/4 wavelength intervals along the coax feed line and also at the entrance to the radio station. They are available with various input and output connectors so as to conveniently connect to standard output connectors already installed on your feed line.

Palomar Engineers TUBE feed line chokes are designed to have 2-5 times more choking impedance over a broader frequency range than competitor units in similar packaging. Each choke has the choking impedance and effective frequency range on the product label so you can choose the product best suited for your application.