Company Confidential
17
Raveon Technologies Corp.
6.6. GPS Related Commands
If you execute any of these commands, the new parameter is automatically stored in
EEPROM.
Command
Command Description
Parame
ters
Factory
Default
Available
to USER
FREEWHEEL
Freewheel time.
Read/set the number of seconds
that the unit will continue to transmit when it does
not have GPS lock.
1-7200
0
N
GPS
GPS Operation Mode.
Set the version’s operating
mode.
1
– 9
2
N
GPS&F
Reset all GPS (- version) parameters.
Set the
version’s Operating mode to GPS mode 4, and
sets all GPS parameters to factory defaults. It does
not erase frequency or other radio-related
parameters.
-
-
N
GPSDATA
GPS Data.
Get the latest GPS position information
received from a remote un
it in “RGI” format.
N/A
N/A
N
GPSAGING
GPS Reception Cache.
Get or set the unit’s
maximum GPS age in seconds. 0=no max age.
0-999
30
N
IDLERATE
IDLE TX Interval.
Set the number of seconds
between position transmissions when the unit is
idle (has not moved more than TRIGDX meters).
0-9999
seconds
10
N
KEYPHRASE
Privacy Security Encryption Key Phrase.
Set
the privacy key for this device. It must be the same
key used on all other Raveon products in your
system. It secures radio transmissions from
unauthorized reception. Set it to 0 to disable
security encryption of data.
2-16
ASCII
character
s.
“HARRIS”
N
MODE
System Mode Macro
. Parameters: TX, RX,
TXRX P, TXRX S. Sets TX mode, RX mode, TXRX
Primary or Secondary mode.
TX, RX,
TXRX P.
TXRX S
TX
Y
NMEAOUT
Enable/Disable NMEA messages.
Configures the
M9 to output standard NMEA messages (GGA,
GLL, RMC) out its serial port.
NMEAOUT 0
disables the messages
. NMEAOUT 1
enables
them.
0, 1
1
N
NMEAMASK
Set/Read NMEA message bit mask.
The
NMEAMASK register contains configuration bits to
enable various NMEA standard messages from the
internal GPS receiver that will be sent out the serial
port. The parameter is the decimal integer value of
the mask.
0-9999
258
(RMC,
GLL,
GGA)
N
NMEARATE
Set/Read NMEA message rate.
Set/read the
number of seconds between NMEA messages
from the internal local GPS.
1-99
5
N
PREFIX
ID Prefix.
Set an ID prefix. The prefix is 1-8
characters that will be put in front of the ID when
reporting an ID as a waypoint name. A dash means
no prefix. Default is a capitol letter V.
1-8
ASCII
character
s
Set it to
“0” for no
prefix.
V
N
REPEAT
Enable - Repeating.
This simple command
enables the repeater feature of the
RF-7800W
,
and configures it for standard operation. The user
may alternately use the ATX and ATRX
commands, but they are more complicated to use.
This command enables the unit to repeat all
messages it receives, as long as the first digit of
0 off
1
configure
repeater.
0
N
