User's Manual

BTS Configuration – continued

DRAFT

SC300 1X BTS Hardware Installation, ATP, and FRU Procedures

JAN 2002

7-28

Procedure to Verify DPLL

Tracking (RGPS/HSO)

The DPLL within the BTS must be tracking either RGPS or HSO in

order to perform ATP. Use the procedure in Table 7-11 to verify DPLL

tracking.

Table 7-11: Procedure to Verify DPLL Tracking

Step Action

1 If an MMI session was established, proceed to step 6. If no MMI session is running, proceed to

step 2.

2 Connect the MMI/LMF.

3 Open an MMI Communication session.

4 Simulate an LMF connection by issuing the sndtype 0xa178 command.

5 Verify that the BTS is in OOS_RAM status by issuing the status command.

6 If an RGPS is not present, go to Step 9.

7 Enter the gps_status command to display the current state of the RGPS. Observe the following

typical response:

gps_status

GPS Receiver Identification:

Current GPS Time :8 03 1999 23:01:12

Current GPS Receiver Status :8

Number of Satellites Currently visible :11

Number of Satellites Currently received :5

Number of Satellites Currently tracked :5

GPS Receiver Type :UT

Current GPS Task State :GPS_TRACK

Current Dilution of Precision (HDOP (2D)/antenna ok [0x01]): 0

Chan: 0, SVID: 9, Mode: 8, RSSI: 44, Status: 0xaa

Chan: 1, SVID: 4, Mode: 8, RSSI: 46, Status: 0xaa

Chan: 2, SVID: 10, Mode: 8, RSSI: 44, Status: 0xaa

Chan: 3, SVID: 6, Mode: 8, RSSI: 41, Status: 0xaa

Chan: 4, SVID: 7, Mode: 8, RSSI: 43, Status: 0xaa

Chan: 5, SVID: 24, Mode: 8, RSSI: 47, Status: 0xaa

Chan: 6, SVID: 30, Mode: 8, RSSI: 45, Status: 0xaa

Chan: 7, SVID: 5, Mode: 8, RSSI: 48, Status: 0xaa

Current Longitude: –350250952

Current Latitude: 118244730

Current Height: 24019

8 The RGPS must have a Current GPS Task State of GPS_TRACK to proceed.

NOTE

GPS tracking times vary depending on location and installation.

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