HF Choke, RF isolator, Current Balun This is made of 10 ferrite core with high permeability EMI which is done to stop. Reduce or eliminate unwanted RF from being conducted back into the coax. This isolator will only remove or "choke" unwanted RF power present on the coaxial feed-line and not affect the RF power you want to deliver to the antenna. Made of RG-8U , 50 ohms.
Can be use with any vertical antenna terminal or directly under the center of dipole. Only 19 inch long, waterproof and enclosed in CPVC tube to protect ferrite to be broken, made to be inserted in new or existing antenna with SO-239 (Fem) silver plated connector and #10 terminal lug. Elimination of radiation from the feeder cable.
Makes the antenna radiation pattern predictable. Dramatically reduces QRM, TVI to neighbors.
Helps to keep RF out of the shack. Frequency: 1.8 - 50 MHz. Insertion loss: less than 0.2 dB at 50 MHz. The item "RF Line Isolator, Current Balun, HF Choke, Twin lead 50 Ohms" is in sale since Tuesday, March 11, 2014.
This item is in the category "Consumer Electronics\Radio Communication\Antennas\Ham, Amateur Radio Antennas". The seller is "crb5000" and is located in Rawdon, Quebec. This item can be shipped worldwide.