FT140-77, ID=.9", RFI Range .1-10 MHz, Pack of 10

Store/Ferrite Core Products/Mix 77/Ring - Mix 77 RFI Range: 100 Khz-10 MHz

Product Details

MPN: F140-77

RFI Range (MHz): 100 KHz-10 Mhz

ID-B (in/mm): .9/23

OD-A (in/mm): 1.4/35.6

Height-C (in/mm): .5/12.7

Weight (oz/gm): 33 grams

Initial permeability: 2000

A(L): 2250

Ferrite Ring Toroid Core, ID = .9"/23mm, Mix 77. Excellent for low frequency switching power supplies. RFI range .1-50 MHz.

Bulk pack of 10.

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.