Software Protocol; Nmea Output; Navman Nmea Low Power Mode Messages; Low Power Configuration - Navman Jupiter 110 Manual

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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.
GGA – global positioning system fix data
GLL – geographic position - latitude/longitude
GSA – DOP and active satellites
GSV – satellites in view
RMC – recommended minimum specific GNSS data
VTG – course over ground and ground speed
ZDA – time & date (J110 and J110R only)

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:

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.
LA000504D © 2006 Navman New Zealand. All rights reserved. Proprietary information and specifications subject to change without notice.
NMEA sentence

Table 6-1: NMEA default settings

Field Description
a Push-To-Fix = 0 (always off)*
TricklePower duty cycle (parts per
b
thousand)
c TricklePower on time (milliseconds)
* Push-to-fix is not supported.
Factory default
on
off
on
on
on
on
off
12