... & FCC certificated Frequency band :400-470MHz, 136-174MHz , Channel spacing: 12.5Khz,25Khz optional Embedded Data modem The FC-301/D ... BandUHF: 400MHz – 470 MHz VHF: 136MHz – 174 MHzChannel Spacing 25KHz/12.5KHz optional RF Output Power 1W - 5W Programmable Modulation type ... :90 ( TX: RX: Standby) Power Supply 12.5V DC Nominal Voltage TX Current (5W RF Power, 12.5V) < 1.5A Standby (Muted) Current ...