NavCom LAND-PAK Rev.N User Manual

Page 120

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Technical Reference Manual Rev. N

Blk = All;

Blu = IOP w/Internal Radio

;

Red = IOP & LBM

;

Grn = Engine only

118

Ref

Message Field Description

Data

Type

Units Range

Scale

Byte

Count

…W4

0110:

New

navigation

0111: Less satellites available than the

specified minimum

1000: PDOP is greater than the

specified limit

1011:

Navigation

jumped

1100: COCOM

limits

reached

1101: Required DGPS messages not

received

B1=0: Clock is unstable,

1: Clock

is

stable

B2=0: Unaided position,

1:

DGPS

position

B3=0: Constrained height,

1:

Solved

height

B4: Reserved

B5: Reserved

0x0100 - 0x0F00: Invalid solution codes

W5

Number of SVs visible

U08

0-32

1

W6

Number of SVs being tracked

U08

0-32

1

W7

Number of SVs used in solution

U08

0-32

1

W8

PDOP

U08

0-25.5

Lsb:

0.1

1

W9

Reserved

U08

1

Repetitive Blocks
Wn1

SV ID (PRN)

U08

1-32

1

Wn2

Channel tracking status

B0-B1: C/A tracking status

B2-B3: P1 tracking status

B4-B5: P2 tracking status

00: Acquisition or

reacquisition

01: Code loop

locked

10: Costas

loop locked

11: Full tracking with aiding and active

multipath reduction - all data is valid

B6=1: C/A Bit sync

B7=1: C/A Frame sync

U08

1

Wn3

Channel number

B5-B0: Logical Super Channel ID SV flag

B6=0: S/A is Off

1: S/A

is On

B7=0: A-S is Off

1: A-S

is

On

U08

1-31

1

Wn4

Current

IODC

U16

2

Wn5 Elevation

U08 deg

0-90

1

Wn6

Azimuth

U16 deg

0-359

2

Wn7

C/A C/No ratio

U08 dB/Hz

Lsb: 0.25

1

Table continued on next page

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