DP405 Service Manual
Antenna Impedance 50Ω
Mic Impedance 2.2kΩ
Battery Lithium-ion battery DC 7.4V , 2000mAh
Rx Sensitivity (12dB SINAD) -119dBm
Squelch on Sensitivity
level
≤-120dBm
Adjacent Channel Selectivity ≥70dB/≥60dB
Intermoducation
Anti-interference
≥65dB
Spurious Response
Anti-interference
≥70dB
Audio Output Power 0.5W,@distortion≤5%,16Ω
Consumption Current ≤400mA
Tx Power UHF 4W/1W VHF 5W/1W @7.4V DC
Frequency Stability ≤ ±2.5ppm
Max Frequency Deviation ±5kHz/±2.5kHz
ModulationDistortion
300~3000Hz
≤ 3%
Adjacent Channel Tx Power ≤-60dbm/≤-50dbm
Spurious Emission ≤-36dB
Consumption Current ≤1.5A @ 7.4V DC
8. Maintenance and Test Equipment
Equipment Specification
Standard signal generator
Frequency range: 400-470MHz
Modulation:frequency modulation and external modulation
Ouput:-127dBm/0.1uv to -47dBm/1mv and above
Dynamometer
Input impedance:50Ω
Operation frequency:400-470MHz
Measurement range:around 10W
Frequency deviation meter Frequency range:400 - 470MHz
Voltmeter
Measurement Range:DC 10mv - 10v
Input impedance:input impedance for min. circuit load
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