User's Manual

BTS Configuration – continued

JAN 2002

7-29

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

DRAFT

Table 7-11: Procedure to Verify DPLL Tracking

Step Action

9 Issue the dpll_status command to display the current state of the DPLL. Observe the following

typical response:

Current source set to: GPS reference

DPLL control task state: DPLL track.

DPLL status (not valid if using even sec src):

c:0000 off: –8639450,6736579,7204904 TK

(Note: This must say TK. A1 and A2 states will have preceded it)

Mode cntr: 120

ip: 9, iq: 4

aip1: 9, aiq1: 4

aip2: 6, aiq2: –2

tip: 3, tiq: –9

integrator: 4096

10 Verify that the DPLL is “tracking” either the RGPS or HSO. The DPLL must have a Current

source set to of GPS reference or HSO reference. The DPLL must also have a

DPLL control task state of DPLL track.

11 If no additional MMI sessions are required at this time, exit the MMI session and HyperTerminal

connection by selecting File>Exit.

If you are continuing the MMI session, proceed to Table 7-12.

Procedure to Verify and Modify

Default Location Coordinates

The BTS supplies the RGPS with default startup coordinates (latitude

and longitude) in order to assist the RGPS in tracking satellites. The

default startup coordinates can be modified and saved into non–volatile

memory to speed the tracking of satellites.

Use the procedure in Table 7-12 to verify and, if necessary, modify the

default startup coordinates. The procedure in Table 7-12 is only

applicable to sites equipped with an RGPS.

Table 7-12: Procedure to Verify Default Startup Coordinates

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 LMF/MMI.

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.

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