Common mode current induced by radiated sources (plasma TV, routers, computers, transmitters, etc) can be picked up by the outside of the coax braid from the antenna feed point back to the receiver. This portion of the coax braid acts like a receiving antenna, picking up common mode noise signals that override weak signals making them difficult or impossible to hear!
The solution? A common mode noise filter with high choking impedance at the receiver end of the coax.
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On Sale
Coax Common Mode Noise Filter - 500 Watts PEP, 1-60 MHz, -38dB Common Mode Noise Suppression!
Coax Common Mode Noise Filter - 500 Watts PEP, 1-60 MHz, -38dB Common Mode Noise Suppression!
SKU CMNF-500-50
List price
$69.95
Save 14%
$59.95
On Sale
Coax Common Mode Noise Filter - 500 Watts PEP, 100 KHz-30 MHz LF & BCB up to -46db Noise Reduction
Coax Common Mode Noise Filter - 500 Watts PEP, 100 KHz-30 MHz LF & BCB up to -46db Noise Reduction
SKU CMNF-500-50LF
List price
$69.95
Save 14%
$59.95
Typical user comment:
The filter was quite effective. Was surprised that it actually reduced the noise level more than the signal so S+N/N improved by 1.9 S units. Bill