Suppresses radio frequency interference (common mode noise carried on coax shield)
¨ Shielded cable protection
¨ Highly Effective Inductive Ferrite Filter
¨ Effective for RFI
Select RFI-F-AM for broadcast band filtering (500 Khz-5 MHz)
Select RFI-F-HAM for 3-30 MHz ham bands 80-10 meters
Up to 30 dB common mode noise suppression
Use for interference from transmitters, wireless mic, and noisy power supplies. Install in series with cables for mic, line, amp/preamp interconnects, and speakers.
Standard cable length is 6 feet, 75 ohm cable, white or black depending upon stock at hand
Also make sure you connect a good RF ground to the transceiver ground post.
Note to Flex Radio users: Use snap on ferrites for firewire cable, speaker cable and mic cable, Ring ferrites for Antenna output and DC power.
For additional RFI suppression, use a feed line choke at the antenna to suppress common current on the coax feed line – see our store for feed line choke alternatives for use at the antenna.
If you use a linear amplifier we have RFI kits for linear amplifiers that help suppress RFI in your shack or in your neighbor’s house.