Rev.
6
Oct.18
Proprietary and Confidential - Contents subject to change
177
!DASPDM
Set PDM value (WCDMA and GSM only)
Adjust the PDM (Pulse Duration Modulation), allowing you to apply frequency offset to the
LO (Local Oscillator) or Tx AGC.
When you adjust the Tx AGC (<PDM ID> = 2), the modem does not use a calibrated
result but uses the raw AGC value. The resulting change in Tx power will vary from
modem to modem, so it is usually necessary to tune this value by executing the command
repeatedly with different settings for the <PDMvalue> until you obtain the desired Tx
power.
When adjusting the tracking LO, you also need to execute the command repeatedly with
different settings for the <PDMvalue> until you obtain the desired frequency offset.
Requirements:
•
to enter FTM mode.
•
to set the device to a WCDMA or GSM band.
•
to set the uplink channel for the selected band.
Password required:
Yes (see
for details)
Usage:
•
Execution:
AT!DASPDM=<PDM ID>, <PDMvalue>
Response:
<PDM ID> <PDMvalue>
OK
Purpose:
Set the tracking LO and Tx AGC PDM.
Parameters:
<PDM ID> (LO (Local Oscillator) or Tx AGC (Automatic Gain Control) to adjust)
•
0—Tracking LO adjust (GSM only)
•
2—Tx AGC adjust (WCDMA only)
•
4—Tracking LO adjust (WCDMA only)
<PDMvalue> (Frequency offset value)
•
If <PDM ID>=0: 0–511
•
If <PDM ID>=2: 0–511
•
If <PDM ID>=5: 0–65536
!DASTXOFF
Turn Tx PA off
Turn the transceiver PA off, after it has been turned on with
.
Requirements:
•
to enter FTM mode.
•
to set the band.
•
to set the uplink channel for the selected band.
Password required:
Yes (see
for details)
Reset required to apply changes:
No
Persistent across power cycles:
No
Usage:
•
Execution:
AT!DASTXOFF
Response:
OK
Purpose:
Turn the Tx PA off.
Parameters:
None
Table 6-2: Test Command Details (Continued)
Command
Description
