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Chapter 2 – Modem-Specific Commands

High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A) 15

Chapter 2 – Modem-Specific

Commands

Introduction

This chapter describes commands used to reset the modem, adjust customization settings, retrieve the

firmware version, and monitor the temperature, voltage, and modem status.

Modem Status, Customization, and Reset Commands

!BAND Select / Return Frequency Band Set

Syntax: Execution: AT!BAND=<bandsetInd>

Response: OK

Purpose: Select a set of bands

Query: AT!BAND?

Response: <bandsetInd>, Band set description

or (If the current band mask doesn’t match a band set)

Unknown band mask. Use AT!BAND to set band.

Purpose: Report the current band selection.

Query List: AT!BAND=?

Purpose: Display allowed values for <bandsetInd> and the corresponding frequency

bands.

Description: Configures the modem to operate on a set of frequency bands, look up available sets, or

return the current selection.

Note: These band sets are preconfigured by your device’s manufacturer. The bands displayed

by the query command (AT!BAND=?) depend on this configuration, as shown in this

example.

Parameters: <bandsetInd> (Band index value—When configured for ‘all regions’, all of the bands

supported by the modem will appear):

00 = All bands

01 = WCDMA 2100

02 = WCDMA 850/1900

03 = GSM 900/1800

04 = GSM 850/1900

05 = GSM ALL

06 = WCDMA 2100 GSM 900/1800

07 = WCDMA 850/1900 GSM 850/1900

08 = WCDMA ALL

09 = WCDMA 850/2100

0A = WCDMA 800/2100

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Multitech MTCMR-H User's Guide Page 15