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LA000504D © 2006 Navman New Zealand. All rights reserved. Proprietary information and specifications subject to change without notice.
6.0 Software protocol
The following sections describe the software protocol, including the default NMEA-0183 (v2.2)
protocol.
6.1 NMEA output
The Jupiter 110 has a default data transmission speed of 9 600 Baud. The update rate is once
per second.
The configuration parameters set via the NMEA command sentences are stored in battery
backed memory and will be used at power up. If the battery backup is unavailable, the default
settings shown in Table 6-1 will be used.
Refer to the Navman NMEA reference manual (MN000315) for a full list of the NMEA
commands.
NMEA sentence
Factory default
GGA – global positioning system fix data
on
GLL – geographic position - latitude/longitude
off
GSA – DOP and active satellites
on
GSV – satellites in view
on
RMC – recommended minimum specific GNSS data
on
VTG – course over ground and ground speed
on
ZDA – time & date (J110 and J110R only)
off
Table 6-1: NMEA default settings
6.2 Navman NMEA low power mode messages
Navman has added proprietary NMEA input messages to configure the TricklePower mode.
6.2.1 Low power configuration
The following message sets the receiver to low power mode:
$PSRF151,a,bbbb,cccc*CS
where:
Field
Description
a
Push-To-Fix = 0 (always off)*
b
TricklePower duty cycle (parts per
thousand)
c
TricklePower on time (milliseconds)
* Push-to-fix is not supported.
Table 6-2: Low power modes message values
This message is the NMEA equivalent of the SiRF Binary input message ID 151. For
compatibility with ublox products, an identical input message is used with 107 substituted for
151 in the header:
$PSRF107,a,bbbb,cccc*CS
System response:
$PTTK,LPSET,a,bbbb,cccc*CS
The updated values returned by the system are as described in Table 6-2.
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