RTS DV 2400 Series, Service Manual

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DV-2400
SPECIFICATIONS
General
Frequency Range
RX 400~490MHz
TX 400~490MHz
Number of channels
250
Channel Stepping 5, 6.25, 8.33, 10, 12.5, 20, 25, 30, 50KHz
Antenna Impedance 50 Ω
Working temperature –20
℃
~+60
℃
(–4
℉
~+140
℉
)
Power Supply 13.8V DC
±
15% (11.7~15.8V)
Grounding Method Negative ground
Current
Transmitter: about 9.5A
Receiver: about 600mA(max.)
Frequency Stability ± 2.5ppm
Dimensions (W x H x D ) 160 x 43 x 137 mm
Weight Approx. 1.2kg / 2.6lb
RECEIVER
Receiver circuitry Double conversion superheterodyne
Intermediate Frequency (1st / 2nd) 38.85MHz / 450kHz
Sensitivity (12dB SINAD) Wide : 0.2 μ V or less Narrow : 0.25 μ V or less
Squelch Sensitivity Wide : 0.158 μ V Narrow : 0.178 μ V
Adjacent channel selectivity Wide : 70dB Narrow : 60dB
Spurious and image rejection ratio 70dB
Audio Output (8 Ω , 5% distortion) 2W or higher (5% distortion)
Audio Output Impedance 8 Ω
TRANSMITTER
Power Output
High 40W
Mid 25W
Low About 10W
Modulation Reactance modulation
Maximum frequency deviation Wide : ±5kHz Narrow : ±2.5kHz
Spurious emission 60dB
Adjacent channel power Wide : 70dB Narrow : 60dB
Noise and hum ratio Wide : 40dB Narrow : 36dB
Audio Distortion (at 60% modulation) 5% or less
Microphone Impedance 1K Ω
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