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LH-680 LH-680 Multi-Function Professional Walkie-Talkie
LH-680 LH-680 Multi-Function Professional Walkie-Talkie
Technical Specifications

General Specifications
Frequency Range
VHF: 136-174MHz UHF: 350-400MHz, 400-470MHz, 450-520MHz Number of channels 128
Channel spacing 12.5/25.0KHz Operating Voltage 7.4V
Standard battery 1200mah (lithium ion) Battery average working hours (5-5-90 working cycles) About 10 hours
Frequency stability ±2.5PPM Operating temperature range -20℃~+60℃
Antenna impedance 50Ω Dimensions (H x W x D)(Without antenna) 106 x 53 x 29.5mm
Weight (including antenna and battery) 196g
Transmitter
Output Power UHF: 5.0W/1.0W, VHF: 4.0W/1.0W
Modulation F3E
Clutter and harmonics -36dBm<1GHz -30dBm>1GHz
Signal to noise ratio 45/40dB
Audio distortion ≤5%
Modulation limit ±2.5@25KHz; ±5.0@25KHz
Audio response(300 ~ 3000HZ) +1to-3dB
Receiver
Sensitivity ≤0.30/0.20µV
Adjacent channel selectivity 60/70dB
Intermodulation 65dB
Spurious response suppression 70dB
Signal to noise ratio 45/40dB
Audio output power 500mW
Audio distortion ≤5%

The above specifications are tested in accordance with TIA/EIA-603 standard. The receive part specification applies only to 136-174MHz,
400-470MHz. As the technology continues to develop, the above specifications are subject to change without notice.