Specifications

Rev. 8 May.12 Proprietary and Confidential 93

5: Test Commands

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

AT!DAFTMACT before issuing

any other command that starts with “!DA”.

• !DASBAND—selects the frequency band.

You must execute

AT!DASBAND to select an LTE band to run

these commands that test the LTE transceiver:

· !DALGAVGAGC

· !DALGRXAGC

· !DALGTXAGC

You must execute

AT!DASBAND to select a WCDMA band to run

these commands that test the WCDMA transceiver:

· !DAWGRXAGC

· !DAWGAVGAGC

· !DAWSTXCW

· !DAWSPARANGE

· !DASTXOFF

· !DASTXON

· !DAWSCONFIGRX

You must execute

AT!DASBAND to select a GSM band to run

these commands that test the GSM transceiver:

· !DAGSRXBURST

· !DAGSRXCONT

· !DAGGRSSI

· !DAGGAVGRSSI

· !DAGGRSSIRAW

· !DAGSTXFRAME

• !DASCHAN—selects the channel. This command must be run

after you have selected the band with

!DASBAND. (If you don’t

select a channel, the modem uses a default.)