Specifications

Testing
Rev 2.0 Apr.10 Proprietary and Confidential 83
iii. AT!DASBAND=<band> (Set frequency band.)
· See Ta b l e 8 -2 on page 81 for <band> values
iv.
AT!DAWSSCHAIN=1 (Enable the secondary chain.)
v.
AT!DASCHAN=<channel> (Set modem channel)
· See Ta b l e 8 -2 on page 81 for <channel> values
vi.
AT!DASLNAGAIN=0 (Set the LNA to maximum gain.)
vii.
AT!DAWGAVGAGC=9400,0,1 (The ‘1’ indicates the diversity path is
used.)
c. Test the limits as in Step 3.
Testing GPS Receiver—MC8775V
Note: The GPS receiver does not need to be tested for other UMTS or CDMA modules
supporting diversity because RF connectivity is validated by testing the diversity receiver in
Step 14 of the Suggested production test plan procedure on page 72.
Note: This procedure segment is performed in Step 15 of the Suggested production test
plan procedure on page 72.
To test the carrier-to-noise level for the GPS receive path:
Note: This procedure
describes steps using the
Agilent 8648C signal
generator—the Rohde &
Schwarz SML03 is shown
for reference only.
1. Set up the signal generator:
a. Set the amplitude to -110 dBm.
b. Set the frequency to 1575.52 MHz. This is100 kHz above the center
frequency for GPS and is needed to accurately measure the carrier-to-
noise (C/N) level.