Service Manual

1
TC-610/620 Schematic Diagram
Specifications
General
Frequency Range
146－174 MHz
400－420 MHz
450－470 MHz
Channel Capacity 16
Channel Spacing 25/12.5 MHz
Operating Voltage 7.5V DC
Battery Life （ 5-5-90 Duty
Cycle）
About 8 hours
Operating Temperature
-20～+50℃
Dimensions (H×W×D)
TC-610:119mm x 54.6mm x 32.5mm (without antenna)
TC-620:117mm x 54.3mm x 31mm (without antenna)
Weight
TC-610: 270g (with antenna)
TC-620: 275g (with antenna)
Frequency Stability ±2.5ppm
Receiver
Sensitivity -119dBm/-118dBm
Adjacent Channel Selectivity ≥65(W)/55(N)
Intermodulation ≥60dB
Spurious Response Rejection ≥65dB
Audio Power Output 1200mW
Transmitter
RF Power Output 5±0.5W(H)/2.0±0.3W(L)
Spurious and Harmonics
<1GHz: -36dBm/>1GHz: -30dBm
Modulation Limitation 5 KHz/2.5KHz
FM Noise
40dB(W)/35dB(N)
Modulation Distortion ≤5%
All Specifications are tested according to TIA/EIA-603, and subject to change without notice due to continuous
development.