RV-Z50-E Quick Start
10
When position transmission is enabled, the device will send its position and other status information
over-the-air automatically, per the configurations below.
6.5.1
Idle Transmission Rate
IDLERATE sets the idle reporting interval. This should be set to the longest acceptable time between
position reports. Conditions (detailed in the following sections) can cause the modem to transmit faster
than the IDLERATE. Set to 0 will disable any idle reporting.
6.5.2
Active Transmission Rate
TXRATE sets the active transmission rate. This is the rate the modem will send its position when one of
the conditions below arises, which can be enabled or disabled individually:
1.
Motion
2.
Distance Traveled
3.
Speed
See the command section for details on how to configure these values.
6.5.3
Report Format
A number of output report formats are available, with the most common being $PRAVE, a customized
format for wireless GPS transponders. See the OUTPUT command for more detail.
6.5.4
Local Position Information
The NMEAOUT, NMEARATE and NMEAMASK commands will configure the unit to output its GPS
position locally over the user serial port.
6.5.5
Deep Sleep
6.6
Data Reception
6.6.1
GPS Position and Status
When the modem
receives a position report and status from another modem, it will send this
information out the serial port, formatted in Raveon’s $PRAVE message format.
Change the position report output format with the
OUTPUT x
command. Enable/disable the local GPS
NMEA data with the
NMEAOUT x
command (0 off, 1 on)
The position/status messages that the modem
is able to send out of its serial port are:
Message
Format
Description
OUTPUT x
Parameter/setting
$GPWPL
NMEA WayPoint List.
T
his message is commonly used to
share waypoint locations among GPS units. The device can
output this message when it receives a position report from
other devices. A GPS connected to it, should put a
waypoint on its screen, and in its database, at the location
specified by the RV-M7.
OUTPUT 3
$PRAVE
Raveon Position & Satus.
This message is sent out of the
device when it is operating in the GPS 2 mode. This
message is used by third-party and PC applications for
tracking location and status information.
OUTPUT 1
$GPTLL
NMEA Target Lat Long.
T
his message is commonly sent by
OUTPUT 2
