Line Isolator feed line chokes are convenient for insertion in the coax feed line at the antenna feed point or the station entrance and they include a ground lug for attachment to a ground rod. Very useful as coax line isolators along a long coax feed line to break up resonances every 1/2 wavelength. For 1-61 MHz use with optional ground lug to bleed off harmful RFI common mode currents.
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.