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

Regular price $42.00


FM notch filters are used to reject strong signals in the frequency range 88 MHz to 108 MHz. 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. 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 7th 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. 
Unlike most FM notch filters on the market, this one has been carefully designed to preserve the Airband frequencies starting at 118 MHz. 


Frequency (MHz)                Typical Attenuation (dB)
55                                                   1.8
75                                                      3
80                                                      5
88                                                    25
98                                                    75
108                                                  14
118                                                   4
150                                                 1.2
200                                                 0.6
1000                                               0.5
2000                                               0.5
3000                                                 2
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.

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