FT400-3I, ID=3", RFI Range 1-300 MHz, Case of 25

Store/Ferrite Core Products/Mix 31/Ring - Mix 31 - RFI Range: 1-300 MHz

Product Details

RFI Range (MHz): 1-300 MHz

ID-B (in/mm): 3/76.2

OD-A (in/mm): 4/101.6

Height-C (in/mm): 1/25.4

Weight (oz/gm): 420

Initial permeability: 1500

(4″ OD, 3″ ID hole), available in mix 31 only, Case of 25

Excellent for large cables or multiple cables – use multiple cores for higher choking. Also useful when you need high turns count for high choking with large cable - works on AC or DC power lines and also coax cable lines.

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.