Kantronics MT1200, User Manual

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In this case, these two users would never beacon at the same time, in fact they would
beacon 1 minute apart. Using this system for our example, it is possible to set all thirty
users to beacon one minute apart, avoiding collisions.
Note: If the START option is specified, the following beacon interval modifiers are dis-
allowed.
Beacon intervals based on speed, distance, or direction change
Other optional parameter settings for GPS Beacons are IDLE, APPEND, CLEAR,
DISTANCE, CORNER, START. Each option has a precedence, based on its position in
the GBEACON string of arguments. After a GPS beacon has been transmitted, all
interval timers are re-started.
The first setting is simply a fixed interval, for GPS beacon transmissions. It can be set to
beacon as often as once per second, up to once per 24 hours.
The first option setting is IDLE. You can specify a period of time of no movement of the
vehicle for the GPS beacon to be transmitted.
The setting APPEND is used in combination with pin 7 on the radio port of the MT1200.
That input should be a connection to the PTT line of your transceiver, along with your
microphone. If APPEND is specified, a GPS beacon will be transmitted upon your
release of the microphone PTT.
If the setting CLEAR is used, the GPS data buffer will cleared after a GPS beacon has
been sent. This can be used to prevent old or invalid GPS data from being transmitted.
If the setting of DISTANCE is used, a GPS beacon will be transmitted after having
traveled the specified distance (in meters or yards).
If the setting CORNER is used, a GPS beacon will be transmitted after the specified
change in direction has occurred (with an option of velocity, in KPH, KNOTS, or MPH).
Remote Access and GPS
The TNC commands can be accessed or changed from a remote packet station, by
connecting to the MYREMOTE callsign in the MT1200.
When you connect remotely to the TNC (and properly respond to the password security
check) you can change any parameters including the GPS parameters. More detailed
information is in the REMOTE ACCESS section.
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