FM Notch Filter 88-108MHz with Enclosure; Excellent Rejection 85dB

Regular price $33.00


FM notch filters are used to reject strong FM signals. A good FM Notch filter will reject FM signals and have low insertion loss for signals outside the band.

Strong FM signals are everywhere as it's a universal broadcast technology used from 88-108 MHz. Lately the popularity of devices with FM modulation in the same band has increased. We can now find FM devices being used for localized audio broadcasts up to 15 miles. Needless to say these signals can saturate a receiver very easily. If a receiver is saturated it will not be able to pick up signals in other bands for which it was designed. An FM notch filter can prevent receiver saturation.
This is a 9th order Filter with excellent rejection in the FM band in a sturdy plastic enclosure. The filter works up to 3 GHz with minimal out-of-band insertion loss. In the absence of a notch filter, FM signals can saturate the receiver. The specifications of this filter are comparable to filters on the market that cost at least twice as much. 
If you are looking for a FM notch filter that is optimized for the Airband Frequencies 118-138 MHz then try this one. 


Frequency (MHz)                Typical Attenuation (dB)
55                                                   1.8
75                                                      4
80                                                      9
88                                                    45
98                                                    85
108                                                  40
150                                                 0.4
200                                                 0.2
1000                                               0.2
2000                                               0.6
3000                                               1.0
In Japan the FM band extends from 76 to 95 MHz while in North America it spans 88 to 108 MHz. 

  • The filter uses SMA-F connectors.
  •  The Maximum RF input power for this filter is +30 dBm or 1 Watt.