ITA-CHOKE - LINE ISOLATOR - EFFECTIVE FROM 0 TO 100 MHz AGAINST COMMON MODE CURRENTS - MAX. POWER 800 W p.e.p. (400 W continuous)
The CHOKE BALUN is a line isolator, that is a useful filter to limit or even eliminate the noise caused by nearby devices: televisions, radios, computers, etc.
It is also useful during the transmission periods to filter the return currents that flow on the external part of the coaxial cable.
The CHOKE BALUN can be placed under the antenna, regardless of the model, between the balun and the coaxial cable.
It can also be placed in a radio station, between antenna cable and transceiver, to improve isolation.
It can also be useful to break the "ground loops", placing one between the radio and any amplifier.
The "Common Mode" filter acts on the currents that travel on the external part of the coaxial cable sheath during the transmission periods, something against which the "Low-Pass" filters are ineffective.
The union of a line / choke isolator and a low-pass filter (for example the YA-1 Bencher) can be successful for eliminating TVI phenomena.
It can also be very useful in mobile installation to avoid annoying R.F. feedback from antennas with grounding problems.
WE RECOMMEND THE USE OF BELDEN H-155, H-500 AND H-1000 COAXIAL CABLES TO MAXIMIZE RESULTS.