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Raveon Technologies Corp.
2. While monitoring the modulation using an FM demodulator, adjust the
digital pot value, by setting it with the ATR9 xx command. xx = 65 is a
typical setting for good modulation.
3. Change the setting so that the long data bits have the same amplitude
and DC value as the shorter ones.
12 Diagnostic Provisions
12.1 Overview of Diagnostics
Internal to the modem, is a powerful 32-bit microprocessor. Along with handing
all aspects of radio modulation and demodulation, the microprocessor also
maintains an extensive array of diagnostic information.
This section details the diagnostic information available, and describes how to us
the information to optimize or troubleshoot the radio network.
12.2 Reading the Diagnostic Information
Diagnostic information is read using AT commands, while the unit is in the
Command Mode. Refer to the section “User Serial Port Commands” to learn
how to put the modem into the Command Mode.
To see a general overview of how the modem has been operating, us the
STAT
command (status request command), without any parameter. The radio modem
will respond with a list of certain operation statistics that it maintains. All statistics
start counting at 0. The STAT 9 command can be used to reset all statistics back
to 0, except the run-time timers.
Other operation and configuration statistics are available using the STAT
command, with a parameter to specify the desired statistic. The following table
describes the various statistics available.
12.3 Status and Statistics Command
Command
Command Description
Response
STAT
General Communication Statistics
– This command will cause the
modem
to output a table of various operational statistics.
Statistics
overview
screen
STAT 9
Reset Statistic Counters
– All statistic counters will be reset to 0.
OK
STAT 2
Low-level internal statistics
– Returns various low-level statistics.
These are subject to change in various firmware revisions.
Low-level
statistics
screen
STAT 3
Compile date and time
– Returns the data and the time that the
firmware was compiled.
Date and time
