12:1 Baluns/Ununs

3185527342 - 12:1 Baluns/Ununs
+3

Audio RFI Suppressor for XLR cables - Simple in line filtering with male/female extension, Select AM Broadcast or Ham Band Filter Range

RFI-XLR-6AM
$29.95
In stock
1
Product Details
MPN: RFI-XLR-AM, -HAM
Country/Region of Manufacture: USA
Units in product: 1

Suppresses radio frequency interference (noise) on balanced audio lines using triple filtering with:

¨ Shielded cable protection

¨ Highly Effective Inductive Ferrite Filter

¨ Effective for RFI

Select RFI-XLR-AM for broadcast band filtering (500 Khz-5 MHz)

Select RFI-XLR-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.

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12:1 Baluns are useful between 600-650 ohm balanced loads the impedance at the  end of the feed line is 600 ohms (1/2 wavelength feed line), or high impedance feeds for rhombic,  T2FD and traveling wave antennas.

12:1 Ununs are useful between coax and long wires with a load impedance near 600 ohms like a beverage antenna.  Shortwave listener antennas also can benefit with the 12:1 unun and it may provide a better match than 9:1 ununs – this means quieter noise levels and stronger signals so you can hear distance stations easier.