144-148 MHz Bandpass Filter for 2m Band Notch Filter This is a 9th order

This is a 9th order Filter with excellent rejection in the FM band

1 inch Aluminum enclosure

cost-effective band pass filter centered at 433

2 GHz              13 dB

Filtering in GNSS

144-148 MHz Bandpass Filter for 2m Band Notch Filter This is a 9th orderPRODUCT OVERVIEW The GPIO Labs 144148 MHz Bandpass Filter protects 2m band receivers from out of band interference strong FM broadcast, cellular, and adjacent service signals that desensitize front end amplifiers and mask weak signals. Passband covers 144148 MHz (North South America, Hawaii, Asia, Oceania) and 144146 MHz (Europe, Africa, Russia), matching regional 2m allocations for amateur radio, satellite communications, APRS, and VHF land mobile