Off Grid Solar Systems
Off Grid systems including portable, emergency and permanent installations
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Solar RFI/Noise Filter - 1/2" ID
Solar RFI/Noise Filter - 1/2" ID
SKU SNF-1/2
List price
$15.95
Save 6%
$14.95
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.