Digi XBee 3 User Manual

AT commands Cellular commands
Digi XBee® 3 Cellular LTE Cat 1 AT&T Smart Modem User Guide
190
1 = Airplane mode
Default
0
DV (Secondary Antenna Function Switch)
Set and read the secondary antenna function setting of the cellular component. When enabled, the
cellular component uses both antennas to improve receive sensitivity.
This setting is applied only while the XBee Smart Modem is initializing the cellular component. After
changing this setting, you must:
1. Use WR (Write) to write all values to flash.
2. Use FR (Force Reset) to reset the device.
3. Wait for the cellular component to be initialized: AI (Association Indication) reaches 0x00.
4. Use FR to reset the device a second time.
5. Wait again for the cellular component to initialize:AI reaches 0x00.
Parameter range
0 - 2
Bit Description
0
The secondary antenna is unused and BLEuses the internal antenna.
1
The cellular component uses the secondary antenna to improve received
sensitivity and the BLE uses the internal antenna.
This is the default setting.
2 BLEuses the secondary antenna as an external antenna instead of using the
internal antenna.
Default
1
SQ (Reference Signal Received Quality)
Returns the Reference Signal Received Quality (RSRQ) value.
The value returned is in hex, and should be converted by the user with the following formula:
RSRQ = -(<hex_value> / 0xA)
Example: The value returned from the command is 82:
RSRQ = -(0x82 / 0xA) = -13.0 dB
Example: The value returned is A0:
RSRQ = -(0xA0 / 0xA) = -16.0 dB
If the value cannot be retrieved for some reason, such as the device is not on the network yet, an
empty string with OK after it is returned.
Parameter range
N/A

Digi XBee 3 Specifications

General

Brand	Digi
Model	XBee 3
Category	Modem
Language	English