Palomar Engineers RFI-XCVR-STD

Standard Kit (recommended for radios with only 1 HF antenna output)

Standard Kit Includes two RFI/noise reduction ring filters for RF output, AC/DC power and 3 snap on filters for I/O cables covering RFI range of 1-300 MHz. Quick installation - immediate RFI/noise reduction. No radio mods required.

Purpose:

BUY THIS KIT NOW TO SOLVE YOUR RFI/EMI ISSUES - WORKS WITH MANY BRANDS OF HAM/COMMERCIAL HF RADIOS.

The RFI kit is designed to be installed on your radio transceiver to reduce Radio Frequency Interference (RFI) caused by common mode current on the outside of the coax braid at the output of your radio and AC/DC power cable. Additional chokes are included to reduce common mode currents on 3 more transceiver cables including computer control, audio and another. The ferrite filters are easy to use, don¡¦t require modification of the protected equipment and work in almost all cases, even when plug-in filters fail.

This kit will help reduce or eliminate:

• "Hot mic" RFI caused by poor grounding of antennas or common mode currents from linear amps feeding unbalanced (coax fed) antennas.
• RFI to neighbor¡¦s electronic devices including audio/video systems, computers, telephones, garage door openers, etc.
• RFI to your other radios, audio/video systems, computers, telephones, etc.
• A side benefit is a reduction in noise floor in your receiver from common mode noise.

Use of the chokes often helps cure SWR problems between transceiver and a linear amp and between transceiver and antenna tuner or direct to antenna. The AC/DC power line choke suppresses common mode current to keep it out of the power line which could cause interference to other devices connected to the same power line if not suppressed.