User Manual

Table Of Contents
SARA-R4 series-AT commands manual
UBX-17003787 - R16
14System features
Page 163 of 401
Type Syntax Response Example
Entering normal mode
Set AT+UTEST=0 OK AT+UTEST=0
OK
Entering non-signalling mode
Set AT+UTEST=1 OK AT+UTEST=1
OK
RX test mode
Set AT+UTEST=2[,[<RX_channel>][,
[<RX_time_interval>][,[<receiver_
path>]]]]
+UTEST: <RX_channel>,<RX_time_
interval>,<receiver_path>,<min>,
<avg>,<max>
OK
AT+UTEST=2,124,250
+UTEST: 124,250,0,-80,-80,-80
OK
TX test mode
Set AT+UTEST=3[,[<TX_channel>][,
[<power_control_level>][,[<training_
sequence>][,[<modulation_mode>][,
[<TX_time_interval>]]]]]]
+UTEST: <TX_channel>,<power_
control_level>,<training_sequence>,
<modulation_mode>,<TX_time_
interval>
OK
AT+UTEST=3,32,7,5
+UTEST: 32,7,5,1,1000
OK
Antenna dynamic tuner configuration mode
Set AT+UTEST=4,<ant_tuner_enable> +UTEST: 4,<ant_tuner_enable>
OK
AT+UTEST=4,1
+UTEST: 4,1
OK
Read AT+UTEST? +UTEST: <mode>
OK
+UTEST: 1
OK
Test AT+UTEST=? +UTEST: (list of supported
<mode>s)
OK
+UTEST: (0-3)
OK
14.4.4Defined values
Parameter Type Description
<mode> Number Test mode setting:
0: the module returns to the normal mode
1: the module enters non-signalling mode
2: RX test mode (measuring the antenna level estimation of the received RF signal)
3: TX test mode (GSMK/8-PSK burst or transmission in 3G bands)
4: antenna dynamic tuner configuration mode (enable/disable antenna dynamic
tuner control)
<RX_channel> Number For the parameter description and its range, see Notes.
<RX_time_interval> Number For the parameter description and its range, see Notes.
<receiver_path> Number For the parameter description and its range, see Notes.
<TX_channel> Number For the parameter description and its range, see Notes.
<power_control_
level>
Number For the parameter description and its range, see Notes.
<training_sequence> Number For the parameter description and its range, see Notes.
<modulation_mode> Number For the parameter description and its range, see Notes.
<TX_time_interval> Number For the parameter description and its range, see Notes.
<ant_tuner_enable> Number Enable/disable antenna dynamic tuner control. Allowed values:
0 (factory-programmed value): antenna dynamic tuner control disabled
1: antenna dynamic tuner control enabled
<param_valx> Number Supported content depends on related <mode> (details are given above).
14.4.5Notes
SARA-R4 / SARA-N4
<mode>=4 (antenna dynamic tuner configuration mode) is not supported.