Magellan GPS ColorTRAK User Manual

Magellan GPS ColorTRAK 67
GSA GPS DOP and Active Satellites
GPS receiver operating mode, satelites used in the naviga-
tion solution reported by the $--GGA sentence, and DOP
values.
1 2 3 4 5 6 7
GSA,a,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF>,
1 Mode: M=Manual, forced to operate in 2D or 3D mode,
A=Automatic, allowed to automatically switch 2D/3D
2 Mode: 1= Fix not available, 2=2D, 3=3D
3-4 PRN numbers of satellites used in solution (null for
unused fields)
5 PDOP
6 HDOP
7 VDOP
GSV GPS Satellites in View
Number of satellites (SV) in view, PRN numbers, elevation,
azimuth and SNR value. Four satellites maximum per transmis-
sion, additional satellite data sent in second or their
message. Total number of messages being transmitted and the
number of messages being transmitted is indicated in the
first two fields.
1 2 3 4 5 6 7 8 910 11
GSV,x,x,xx,xx,xx,xxx,xx..........xx,xx,xxx,xx*hh<CR><LF>
1 Total number of messages, 1 to 3
2 Message number, 1 to 3
3 Total numer of satellites in view
4 Satellite PRN number
5 Elevation, degrees, 90° maximum
6 Azimuth, degrees True, 000 to 359
7 SNR (C/No) 00-99 dB, null when not tracking
8-9 2nd-3rd SV
10-11 4th SV
Notes: 1) Satellite information may require the transmission
of multiple messages. The first field specifies the total
number of messages, minimum value 1. The second field iden-
tifies the order of this message (message number), minimum
value 1.
2) A variable number of “PRN-Elevation-Azimuth-SNR” sets are
allowed up to a maximum of four sets per message. Null
fields are not required for unused sets when less than four
sets are transmitted.

Magellan GPS ColorTRAK Specifications

General

Brand	Magellan
Model	GPS ColorTRAK
Category	GPS
Language	English