Outdoor use professional Digital two way Radio (DMR) DM-680 Portable Type General Specification ModelDM-680Channels512Zones16Frequency Rang400-480MHzAntenna Impedance50?Dimension97×58×40mmWeight270gLi-ion battery2300mAhRated voltageDC: 704VBattery: The average battery life under 5/5/90 duty cycle, and using carrier squelch and TX high power.Receiver Frequency400-480MHzChannel Spacing12.5kHz/25kHzFrequency Stability+/- 1.5ppmAnalog Sensitivity0.3uV /0.25uVDigital Sensitivity0.25uV /0.20uVIntermodulation65dBAdjacent Channel Selectivity60dB@12.5kHz / 65dB@25kHzSpurious Rejection65dBR
Outdoor Use Professional Digital Two Way Radio (DMR) DM-680 Portable Type