User manual

USB Dongle Series Model:UD-731R

UniTraQ International Corp. RoHS compliance.

2010,08, Version 1.0

Field Name Example Description

1 Mode A Mode

‘M’ = Manual, forced to operate in 2D or 3D mode ‘A’ =

Automatic, allowed to automatically switch 2D/3D

2 Mode 3 Fix type

1 = Fix not available

2 = 2D

3 = 3D

3 Satellite used 1~12

01,20,19,13,,,,,

,,,,

Satellite ID number, 01 to 32, of satellite used in solution,

up to 12 transmitted

4 PDOP 40.4 Position dilution of precision (00.0 to 99.9)

5 HDOP 24.4 Horizontal dilution of precision (00.0 to 99.9)

6 VDOP 32.2 Vertical dilution of precision (00.0 to 99.9)

7 Checksum 0A

10.4 GSV - GPS SATELLITE IN VIEW

Number of satellites in view, PRN number, elevation angle, azimuth angle, and C/No. Four

satellites details

are transmitted per message. Additional satellite in view information is send in subsequent

GSV messages.

Structure:

$GPGSV,x,x,xx,xx,xx,xxx,xx,…,xx,xx,xxx,xx *hh<CR><LF>

1 2 3 4 5 6 7 4 5 6 7 8

Example:

$GPGSV,3,1,09,28,81,225,41,24,66,323,44,20,48,066,43,17,45,336,41*78<CR><LF>

$GPGSV,3,2,09,07,36,321,45,04,36,257,39,11,20,050,41,08,18,208,43*77<CR><LF>