Signal Quality Error (Sqe) Test - Motorola IDEN I580 Field Service Manual

FIELD LEVEL TEST MODES AND PROCEDURES: Signal Quality Error (SQE) Test
8.5

Signal Quality Error (SQE) Test

Use this test on a unit having any of the following symptoms: No service failures or poor SQE/RSSI
(poor performance in known good coverage area).
Set up the R-2660 for iDEN
Mobile operation, and connect the
unit to the RF IN/OUT
connector. See Figure 7-1 on page
Connect the regulated battery
eliminator to the unit to be
tested. Set the power supply 7.0
Verify that
the unit can complete an
interconnect call. Press End/Home
until the unit displays Ready. Press Intercon-
nect (3:1 or 6:1) and Start on the R-2660. Wait for the
green LED to light. Press Send on the unit.
Note: Leave call connected for
the next test.
Pass
Place unit
in Debug Mode (see
Entering Debug Mode). Press
Trace to monitor the SQE & TX level.
Press RF in the R-2660 and arrow down to Gen:.
Verify that it is set to -70dBm.
Verify that the SQE is
greater than
Pass
Gen: to -80 dBm, and
check the SQE Reference chart to
verify the unit's SQE per Gen:
output using the
Pass
64
7-3.
Vdc.
Initial Registration mode (see
Operating the R-2660.) Press Start.
Pass
The Call SEQ: 1 thru 6 lights up
26.
Change
chart.
Notes:
1. Watch unit for resetting during this procedure.
2. Master reset can be completed on the unit by pressing Menu,
Settings, Security.
3. Registration and calls might take over 1 minute to complete.
4. See the Strong Signal Environment section in Chapter 7.
Power
up the unit. Enter
when unit has
registered.
Fail
Perform the
Registration/Call test.
Fail
Fail
Unit passed test. Look for
system, coverage, accessory, or
software problems.
Perform the Registra-
Fail
tion/Call test.
SQE Reference Chart
Gen SQE Level
-70 dBm >26
-80 dBm >25
-90 dBm >23
-100 dBm >20
Note: Gen levels in the SQE chart
include RF Adapter losses.
Replace the
Main board.
Replace the
Main board.
68P80401P05