User's Guide

Revision 1.0 STX3 Users Manual
11/5/2013 Revision 1.0 Subject To Change without Notice P a g e | 21
dd: decimal degrees, mm.mmmm minutes
NS: hemisphere (N/S)
Lng: dddmm.mmmm
ddd: decimal degrees, mm.mmmm minutes
EW: hemisphere (E/W)
hhhhhh: hexadecimal value of 3 byte payload
Example:
AT+CMGSL=3025.9857,N,09005.2182,W,A53311
OK
Message Burst In Progress
ERROR
Invalid message or modem error
AT+CANX
Cancel running transmission.
OK
Command OK (This command will never return an error. If no
transmission is running, it will simply do nothing. This makes it
possible for user code to just blindly send this command before
any command to transmit if desired.)
AT+CGNTR?
Request the remaining number of total packet transmissions
remaining in a running burst. The value returned by this query
will represent the number of packets in the message times the
number of burst transmissions remaining. For example, if two
transmissions remain in the burst of a 4 packet message, a value
of 8 will be returned. If no burst is in progress, a value of 0 will
be returned. This command will never return an error.
+CGNTR: <n>
n= Number of packets left in the burst
Example: +CGNTR: 8
AT+CDFC=<channel
number>
Set the default channel. Valid values are 0 – 3.
Example: AT+CDFC=2
OK
Command OK, channel was successfully set.
ERROR
ERROR. Typically means channel number is out of range.
AT+CFDC?
Request current channel.
+CDFC: <n>
N= current channel, a number between 0 and 3.
AT+CBNT=<Number of
tries>
Set number of transmissions in burst. <Number of tries> = the
number of transmissions in the burst. Range must be 1 – 16.
Value may be sent in decimal or HEX format. HEX is indicated
with a leading “0x”.