DR600 Service Manual
Tx lock
voltage
testing
Tx board
TP100
1. Turn on the repeater.
2. Set HP8921 to TX mode.
3. Connect TX port to HP8921 RF high power input
port.
4. Enter computer modulation mode.
5. Click Tx low power test points to test lock voltage
0.5V
≤
CV voltage
≤
4.5V
Rx lock
voltage
test
Rx board
TP100
1. Turn on the repeater.
2. Set HP8921 to TXmode.
3. Connect TX port to HP8921 RF high power input
port
4. Enter computer modulation mode.
5. Click Rx sensitivity test points to test lock voltage
0.5V
≤
CV voltage
≤
4.5V
6.2.2 Tx Adjustment
Subject
Modulation Procedure
Standard
Tx high power
1. Enter pc tuning mode.
2. Enter modulation mode”High Power”.
3. Adjust PC software value; observe power value on the
integrated tester.
4. Adjust to test power: 40
±
2W.
5. Modulate the frequency one by one.
40
±
5W
Tx low power
1. Enter computer modulation mode.
2. Enter modulation mode “Low Power”.
3. Adjust PC software value; observe power value on the
integrated tester.
4. Adjust to test power: 20W.
5. Modulate the frequency one by one.
20W
±
1.5db
Low frequency
modulation
frequency
deviation
1. Enter computer modulation mode.
2. Click frequency F1 to F6.
3. When AF Freq is 0.1kHz, observe FM Deviation on the
integrated tester, and modulate PC software value.
4. Adjust FM Deviation to 5.0
±
0.05kHz.
5. Click “ok” to save.
4.95kHz-5.05kHz
High frequency
modulation
frequency
deviation
1. Enter computer modulation mode.
2. Click Frequency F1 to F6.
3. When AF Freq is 6.0 kHz, observe FM Deviation on the
integrated tester, and modulate PC software value.
4. modulate FM Deviationto5.0
±
0.05kHz.
4.95kHz-5.05kHz
41
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 ...