GSOF message: Detail SV Info

This message describes detailed satellite information. It contains the following data:

  • Number of satellites tracked

  • The PRN number of each satellite

  • Flags indicating satellite status

  • Elevation above horizon, in degrees

  • Azimuth from True North, in degrees

  • Signal-to-noise ratio (SNR) of L1 signal

  • Signal-to-noise ratio (SNR) of L2 signal

SV detail (Type 14 record)

Field

Item

Type

Value

Meaning

0

Output record type

Char

0Eh

Detailed satellite information output record

1

Record length

Char

1 + 8 (number of SVs)

Bytes in record

2 to 9

Number of SVs

Char

00h-18h

Number of satellites included in record

NOTE – Includes all tracked satellites, all satellites used in the position solution, and all satellites in view.

The following bytes are repeated for each SV:

 

PRN

Char

01h-20h

Pseudorandom number of satellites (1 to 32)

 

Flags1

Char

See SV flags: 1-bit values

First set of satellite status bits

Flags2

Char

See SV flags: 2-bit values

Second set of satellite status bits

Elevation

Char

Degrees

Angle of satellite above the horizon

 

Azimuth

Short

Degrees

Azimuth of satellite from True North

 

SNR L1

Char

dB * 4

Signal-to-noise ratio of L1 signal (multiplied by 4) 1

 

SNR L2

Char

dB * 4

Signal-to-noise ratio of L2 signal (multiplied by 4) 1

1. The SNR L1 and SNR L2 items are set to zero for satellites that are not tracked on the current frequency.