Javad ALPHA Operator's Manual page 62

Configuration
TriPad Configuration
Configuring the GSM module for Internet access
The file name depends on both the file creation time (month and day) and additional letter suffixes
to avoid confusion between files created on the same day.
Always Append to the File parameter
If you want the new receiver data to be appended to an existing log file, enter the desired filename
in this parameter. The setting can be up to 20 characters long.
Files Creation Mode parameter
This parameter has two possible operation modes:
• Log file - If the log file radio button has been selected, pressing the FN key will result in
closing the current log file. If data logging is off, pressing FN will open a new log file.
• AFRM - If AFRM radio button has been selected, pressing FN will enable this mode. If
AFRM has been enabled, pressing FN will disable this mode.
Automatic File Rotation Mode (AFRM) parameters
JAVAD GNSS receivers are capable of automatically rotating log files. During a "file
rotation" event, the receiver closes the current file and opens a new one according to a user-
defined schedule. The Period and Phase parameters specify this schedule. File rotation
launches the moment the receiver time module Period is equal to Phase. More precisely, a
new log file opens immediately before the scheduled epoch causing data tagged with this
epoch to be recorded to the new log file.
When opening a new log file, the receiver enables the default set of messages outputted
with the default output period. Both the default set of messages and the default output
period are programmable.
• Period - specifies the time duration of each log file created in AFRM mode.
• Values are 60 to 86400 seconds. The default value is 3600 seconds.
• Phase - specifies the "phase" (constant time shift) of creating multiple log files in AFRM
mode.
• Values are 0 to 86400 seconds. The default value is zero seconds.
• Files (total) - a counter that specifies how many multiple log files must be created in
AFRM until this mode automatically turns off. This counter decrements on every file
rotation until it value becomes zero, then file rotation automatically stops. The counter
initializes with AFRM.
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