Navman 11 User Manual

56

MN002000A © 2004 Navman NZ Ltd. All rights reserved. Proprietary information and specifications subject to change without notice.

Message ID: INIT
Rate: as required
Fields: 14

$PRWIINIT

Start of sentence and address field (Note 1)

$PRWIINIT

1

RESET

Software reset flag (A = reset, V = don’t reset) (Note 2)

a

V

2

RES_1

Reserved

3

RES_2

Reserved

4

LAT

Latitude (Note 2)

IIII.II

3339.650

5

LAT_REF

Latitude direction (N = north, S = south) (Note 2)

a

N

6

LON

Longitude (Note 2)

yyyyy. yy

11751.680

7

LON_REF

Longitude direction (E = east, W = west) (Note 2)

a

W

8

ALT

Altitude (m) (Note 2)

x.x

64.131

9

SPD

Ground speed (Note 2)

x.x

0.0

10

SPD_TYP

Ground speed units (M = m/sec, N = knots, K = km/hr) 

(Note 2)

a

M

11

HDG

Heading (0.0 to 360.0 degrees north) (Note 2)

x.x

0.0

12

HDG_TYP

Heading type (T = true, M = magnetic) (Note 2)

a

T

13

TIME

UTC time (h, min, s) (Note 2)

hhmmss

162338

14

DATE

UTC date (Note 2)

ddmmyy

190594

CKSUM

Checksum (optional)

*hh

<CR><LF>

Sentence terminator

<CR><LF>

Note 1:

 $ = NMEA message prefix.

 P = Proprietary message indicator.

 RWI = Navman Systems Inc. mnemonic.

 INIT = Initialisation message ID.

Note 2: this function is enabled by default. Each of the fields 1 through 14 may be null to indicate that the previous setting for the 

data item should be left unchanged. For example, reset may be commanded without specifying the other parameters by issuing 

the following command:

 $PRWIINIT,A,,,,,,,,,,,,,<CR><LF>

 When using null fields, the following restrictions apply:

 • If a supplied parameter has a corresponding unit specifier or reference indicator, it must also be supplied.

 • Both latitude and longitude must be provided to specify a valid horizontal position.

 • Both ground speed and heading must be provided to specify a valid horizontal velocity.

 • If a magnetic heading is specified, horizontal position (Iat/lon), and UTC time and date must also be provided.

 • UTC time and date must be provided together.

This proprietary message commands the Jupiter 

receiver to perform a reset, modify its operating 

mode, or reinitialise itself using specified 

parameters. The contents of the ‘INIT’ message 

are described in Table 3-56. 

Sample message:
$PRWIINIT,V,3339.650,N,11751.680,W,64.131,

0.0,M,0.0,T,162338,190594