TC-508 Service Manual
73
Specifications
General
Frequency Range
400-420MHz, 450-470MHz
136-154MHz，146-174MHz
Channel Capacity 16
Channel Spacing 25 KHz /12.5KHz
Operating Voltage 7.4V DC
Operating Temperature
-25℃~+60℃
Dimensions (H×W×D)
(with standard battery, without
antenna)
113*54*32mm
Weight (with antenna & battery)
250g
Frequency Stability ±2.5ppm
Receiver
Sensitivity ≤0.251uV/0.282uV
Blocking
85dB
Adjacent Channel Selectivity 65dB/55dB
Intermodulation 60dB
Spurious Response Rejection 65dB/60dB
Rated Audio Power Output
0.5W (Speaker impedance: 16 ohm)
Rated Audio Distortion
≤5%（0.5W）
Transmitter
RF Power Output 4W
Spurious and Harmonics ≤-26dBm
Modulation Limiting ≤5KHz/2.5KHz
Modulation Sensitivity 9±3mV
Modulation Distortion ≤5%
Adjacent Channel Power Ratio ≤-70dB/-60dB
Note: All Specifications are tested according to CE standard, and subject to change without notice due to
continuous development.
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