Excellent very low frequency RFI suppression and common mode chokes < 10 MHz. Higher choking than Mix 31 under 10 MHz. Use for AC/DC power cables used with switching power supplies, data, audio, video cables for AM broadcast RFI suppression.
Bulk pack of 10 rings.
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.