Motorola PM1200, Базовое руководство по обслуживанию

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October 26, 2007 6880309U09-A
5-8 Radio Alignment and Programming Procedures : PM1200 Radio Alignment Software
8. Left-click Reflect to record the Squelch Threshold data.
Figure 5-6. SQL Alignment Screen
5.5.4.2 SQL Tight Alignment
1. Left-click SQL Tight to align the Squelch Tight Level.
2. Toggle the Programmable SQL Function Button and rotate the Channel Knob to SQL 12.
3. Inject an on channel signal to the radio at -47 dBm with ±3.0 kHz deviation of a 1 kHz audio
tone to verify the radio is receiving the desired frequency.
4. Adjust to the rated audio by rotating the Volume Knob to 6.32 V.
5. Set the RF Signal Generator output to the Center frequency of the Operating Band, at a level
of -115 dBm signal with ±3.0 kHz deviation of a 1 kHz audio tone.
6. Adjust the RF signal until the radio is totally muted.
7. Left-click
Reflect to record the Squelch Tight data.
5.5.4.3 SQL RSSI Alignment
1. Left-click SQL RSSI to align the Squelch RSSI Level.
2. Inject an on channel signal to the radio at -47 dBm with ±3.0 kHz deviation of a 1 kHz audio
tone to verify the radio is receiving the desired frequency.
3. Adjust to the rated audio by rotating the Volume Knob to 6.32V.
4. Set the RF Signal Generator output to the Center frequency of the Operating Band, at a level
of -113 dBm signal with ±3.0 kHz deviation of a 1 kHz audio tone.
5. Left-click Reflect to record the Squelch RSSI data.
RSSI levels are Factory tuned. Unless there is a need for re-tuning
- such as board replacement, repair, or loss of tuning information -
these values should NOT be changed. Tuning to levels other than
those defined degrades RSSI - roaming performances.
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