Available in VHF (136–162 MHz, 146–174 MHz) and UHF (403–440 MHz, 438–470 MHz, 465–495 MHz) variants.
A high-level diagram showing the signal path from antenna to speaker, including the RF front end, IF stages (first IF 45.1 MHz, second IF 450 kHz), and audio amplifier IC. motorola gp3188 service manual
If you are performing service on this device, focus on these common areas: Available in VHF (136–162 MHz, 146–174 MHz) and