Suppresses radio frequency interference (common mode noise carried on coax shield)
¨ Shielded cable protection
¨ Highly Effective Inductive Ferrite Filter
¨ Effective for RFI
Select RFI-F-AM for broadcast band filtering (500 Khz-5 MHz)
Select RFI-F-HAM for 3-30 MHz ham bands 80-10 meters
Up to 30 dB common mode noise suppression
Use for interference from transmitters, wireless mic, and noisy power supplies. Install in series with cables for mic, line, amp/preamp interconnects, and speakers.
Standard cable length is 6 feet, 75 ohm cable, white or black depending upon stock at hand
50 ohm coax to 75 ohm balanced output baluns are useful for low (< 1 wavelength) dipoles exhibiting 75 ohm characteristic impedance or for matching to balanced ladder line whose endpoint impedance is near 75 ohms.
50 ohm coax to 75 ohm CATV coax connections are easily done with a 1.5:1 unun with SO-239 connectors on input and output. Likewise 50 ohm coax to unbalanced verticals or loads near 75 ohms can be matched with a 1.5:1 unun.