DR600 Service Manual
1 off
change to the next frequency after the value is stable.
4. Modulate the frequency of narrow band and wide band in turn.
Rx distortion
Observe the distortion value,
<
3%
Rx SNR
Observe SNR value
W:
>
45dB
N:
>
40dB
CTCSS/CDC
SS
-
Can
transmit
BER Test
1. Set the output range of 3920 as -118dBm.
2. Enter BER test mode.
3. Click “Start”, and observe BER.
EER
≤
5%
7. Main Technical Functions and Specifications
General Specification
Frequency Range
UHF: 400-470MHz VHF:136-174MHz
Channel Capacity
16
Channel Spacing
12.5kHz/20kHz/25kHz
Weight
11.2kg
Dimension(H*W*D)
482.6mm*450mm*44mm
Environment Index
Operating
Temperature
-30
℃
~+60
℃
Storage Temperature
-40
℃
~+85
℃
Rx Parameter
Frequency Stability
±
1.5ppm
Analog Rx Sensitivity
-118dBm(12dB)/-121dBm(12dB)
Digital Rx Sensitivity
-120dBm(5%)
44
Содержание DR600
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Страница 37: ...DR600 Service Manual 33 ...
Страница 109: ...DR600 Service Manual Appendix 2 PCB View and Schematic Diagram Figure 1 Rx Module Top Board PCB View 105 ...
Страница 110: ...DR600 Service Manual Figure 2 Rx Module Bottom Board PCB View 106 ...
Страница 111: ...DR600 Service Manual Figure 3 Tx Module Top Board PCB View 107 ...
Страница 113: ...DR600 Service Manual Figure 6 Baseband Mainboard Top Board PCB View 109 ...
Страница 114: ...DR600 Service Manual Figure 7 Baseband Mainboard Bottom Board PCB View 110 ...
Страница 115: ...DR600 Service Manual Figure 8 Front Panel Top Board PCB View Figure 9 Front Panel Bottom Board PCB View 111 ...
Страница 116: ...DR600 Service Manual Figure 10 Power Board Top Board PCB View 112 ...
Страница 117: ...DR600 Service Manual Figure 11 Accessory Board Top Board PCB View Figure 12 Accessory Board Bottom Board PCB View 113 ...
Страница 118: ...DR600 Service Manual Figure 13 Enternet Board Top Board PCB View 114 ...
Страница 119: ...DR600 Service Manual Figure 14 Enternet Board Bop Board PCB View 115 ...
Страница 150: ...DR600 Service Manual Figure 21 Baseband Mainboard Schematic Diagram 146 ...