99 memory channels Pll phase-locked loop, micro-computer chip control Supports CTCSS/DOT/DQ function Switch power between high and low Monitor and scan function Low power alarm Keypad and lcd backlight function Vox function built-in Output power: 5w Current: 1.6a/1a Frequency range: 136-174mhz, 400-420mhz, Operating voltage: 7.2v dc Number of channel: 100 Channel spacing: 5, 10, 12.5, 25 khz Frequency stability: + 5ppm Antenna impedance: 50+ Modulation sensitivity: 12 mv (deviation2.2khz-3.6khz) Maximum deviation: 5khz Modulation deviation: 5% CTCSS deviation: 0.75khz+ 50hz Spurious emissions: 7w Modulation mode: fm (16f3e ) Residual modulation; -35db Spurious rejection: 55db 53 x 113 x 35mm