Notch high Q filter with N connector. It allows the reduction of broadcasting frequencies from 88 to 108mhz with over 90db 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.
All the notch filters we produce are calibrated one by one in order to have the maximum attenuation at exactly 88.98 and 108MHz with a maximum error of 3%.
High Q inductances designed for our filters.
BNC Male 50 Ohm: Amphenol
BNC Female 50 Ohm: Amphenol
Cylindrical shaped structure made of anticorodal (6000 alloy) aluminum.
Black anodic anodization
Engraving with fiber laser
Attenuation at 88, 98 and 108 MHz => at 50dB
Amphenol BNC connectors
HI-Q RF 250V ceramic capacitors
Max power input : 30 Watt
Questo grafico rappresenta la perdita di inserzione il il return loss del filtro da 5kHz a 1.5GHz.
Questo grafico rappresenta la perdita di inserzione il il return loss del filtro da 5kHz a 3GHz.
Questo grafico rappresenta il cuore del filtro, il notch. Come potete vedere a 95MHz il filtro ha una perdita di 98dB REALI mentre la banda aeronautica e la banda civile sui 70MHz viene poco attenuata