Notch high Q filter with N connector. It allows the reduction of broadcasting frequencies from 88 to 108MHz with over 75db of attenuation. This version has been designed to be matched only to receivers, scanners, SDR or to be attached directly to spectrum analyzers. It allows low-loss reception of frequencies adjacent to the FM band such as the civil band at 78MHz and the 120MHz aerial. Perfect for professional use as for measurement near broadcasting stations operating from 88 to 108MHz.
High Q inductances designed for our filters.
N Male 50 Ohm: Amphenol
N Female 50 Ohm: Amphenol
Cylindrical shaped structure made of anticorodal (6000 alloy) aluminum.
Black anodic anodization
Engraving with fiber laser
Attenuation at 98MHz > 75dB
Amphenol BNC connectors
HI-Q RF 250V ceramic capacitors
Max power input : 30 Watt
This graph represents the insertion loss and the return loss of the filter from 5kHz to 1.5GHz.
This graph represents the insertion loss and the return loss of the filter from 5kHz to 3GHz.
This graph represents the heart of the filter, the notch. As you can see at 95MHz the filter has a loss of 98dB REAL while the aeronautical band and the civil band on 70MHz is slightly attenuated