Test Commands - Sierra Wireless MC8775 Reference Manual

5: Test Commands

• Introduction
• Command summary
• Command reference
• Sample AT command
sequences
Rev 2.9 Oct.08
Introduction
To obtain regulatory approval and carrier approvals for your
product, you may be required to perform tests on the radio
component of the embedded modem. This chapter describes
AT commands used to perform those tests.
In most cases the modem must be in a particular mode before
you can issue the AT commands to perform particular tests.
Therefore, the order in which you issue certain commands is
important. Three AT commands are important in setting the
mode:
!DAFTMACT
• —puts the modem in factory test mode (a non‐
signaling mode). You must issue
issuing any other command that starts with "
!DASBAND
• —selects the frequency band.
AT!DASBAND
You must execute
in order to run these commands that test the WCDMA
transceiver:
!DAWGRXAGC
·
!DAWGAVGAGC
·
!DAWSTXCW
·
!DAWSPARANGE
·
!DASTXOFF
·
!DASTXON
·
!DAWSCONFIGRX
·
AT!DASBAND
You must execute
order to run these commands that test the GSM trans‐
ceiver:
!DAGSRXBURST
·
!DAGSRXCONT
·
!DAGGRSSI
·
DAGGAVGRSSI
·
!DAGGRSSIRAW
·
!DAGSTXFRAME
·
!DASCHAN
• —selects the channel. This command must be
run after you have selected the band with
you don't select a channel, the modem uses a default.)
At the end of this chapter there are Sample AT command
sequences that show how to perform certain tests.
AT!DAFTMACT
before
!DA
".
to select a WCDMA band
to select a GSM band in
!DASBAND
. (If
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