LD-7800 Professional Digital Walkie-Talkie
General specifications
Frequency Range
VHF:136-174MHz UHF: 400-470MHz
Number Of Channels
512
Channel Spacing
25/12.5KHz
Operating Voltage
7.4V
Standard Battery
2000mah (lithium ion)
Battery Average Working Hours (5-5-90 Working Cycles)
Analog / Digital: 13/17 hours
Frequency Stability
±1.5 PPM
Operating Temperature Range
-20℃~+55℃
Antenna Impedance
50Ω
Dimensions (H x W x D)(Without Antenna)
119 x 55 x 34mm
Weight (Including Antenna And Battery)
280g
transmitter
Output Power
VHF: 5.0W/1.0W UHF: 4.0W/1.0W
Modulation (Analog)
11KΦF3E@12.5KHz 16KΦF3E@25KHz
Modulation (Digital)
12.5KHz Data and voice 7K60FXW. Data only 7K60FXD
Clutter And Harmonics
-36dBm<1GHz -30dBm>1GHz
Signal To Noise Ratio
40/45dB
Audio Distortion
≤3%
Modulation Limit
±2.5@12.5KHz;±5.0@25KHz
Audio Response(300 ~ 3000HZ)
+1to-3dB
Digital Vocoder Type
AMBE++
Digital Protocol
ETSI-TS102361-1.-2.-3
Receiver
Sensitivity (Simulation)
≤0.30/0.20µV
Sensitivity (Number)
≤0.22µV/BER5%
Adjacent Channel Selectivity
60/70dB
Intermodulation
65dB
Spurious Response Suppression
70dB
Signal To Noise Ratio
40/45dB
Audio Output Power
1.0W
Audio Distortion
≤3%
Audio Response
+1~-3dB
Conduction Emission Miscellaneous
<-57dBm
400-470MHz. As the technology continues to develop, the above specifications are subject to change without notice.

