DP580 Service Manual
Tx Part
1. Output power: High (3.5W---4.5W), low (0.7W---1.5W)
2. Transmitting Current: High-power (<= 1.7A), low-power (<=1.2A)
8.General Specification
136~174 MHz, 350~400 MHz, 400~470 MHz
16 partitions*16 channels
7.4V, cathode grounded
℃~ + 55℃
Li-ion battery, DC 7.4V, 2000mAh
Receiving sensitivity (12dB
-119dBm
Selectivity of Adjacent
≥60dB@12.5kHz, ≥70dB@25kHz
Spurious Response Rejection
0.5W, @distortion ≤5%, 16Ω
Maximum Modulation Offset
≤±2.5kHz@12.5kH, ≤±5kHz@25kH
Modulation Distortion
≤ 3%
Power of Adjacent Channel
≤-60dBm@12.5kHz, ≤-70dBm@25kHz
≤-36dBm@<1GHz, ≤-30dBm@>1GHz
9.Equipment for Maintenance and Test
The following devices are used in maintenance and debugging.
Wireless general-purpose tester HP8920/8921
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