144-148 MHz Bandpass Filter for 2m Band RF Adapter is greater than 45 dB

is greater than 45 dB and typically close to 50 dB

Rejection of strong signals in FM

NOTE: Connectors are SMA-F

It also includes a bias tee feature (you will need to solder a 10uH inductor yourself)

144-148 MHz Bandpass Filter for 2m Band RF Adapter is greater than 45 dBPRODUCT OVERVIEW The GPIO Labs 144148 MHz Bandpass Filter (board only) 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