NavCom Sapphire Rev.J - Manual (Page 42)

Sapphire Technical Reference Manual Rev. J
42
Profile Functionality
The Sapphire receiver provides for storage of up to 20 user profiles in its non-volatile memory.
The command mnemonic, [PROFILE], plus the command action keyword, SAVEAS, and a user-
defined
“name”, saves the current configuration settings of the receiver as a user profile with the
specified name. Each user profile is stored in the receiver with a name. A controller solution,
such as StarUtil 3000, is used to activate a user-defined profile by its name.
Before turning off the receiver, to make the current profile available for future
use, the user must save the current profile as a user profile if it is not saved
already. Refer to PROFILE (ASCII) for detailed information.

A new profile sent to the receiver replaces the currently used profile, but it does not
necessarily replace all the current parameter settings. The new profile replaces only those
parameter settings that it specifies.
For example:
The default navigation elevation mask is 7

.
The user changes the elevation mask to 12
 in a profile named “Test”. The user
subsequently sends profile “RTK” to the receiver. It replaces “Test”, and changes
navigation mode settings and port assignments.
But profile “RTK” does not specify a setting for the navigation elevation mask. So, the
elevation mask remains at 12
 , as previously set by the “Test” profile.
The command mnemonic [USEPROFILE] is used to query the name of the last profile invoked
from memory or to request a different profile to be read from memory and installed as the
operating configuration.
[USEPROFILE] NONE is used to reset all of the user-controlled configuration parameters to the
factory default values.
The receiver’s profile remains set to NONE until another profile is
successfully input.
NMEA Messages Overview
This product provides support for selected sentences defined in the National Marine Electronics
Association (NMEA) document 0183 “Standard for Interfacing Marine Electronic Devices”,
Version 3.01, January 1, 2002 or up to v.3.0.13 of the software. Subsequent software versions
support NMEA 0183, v.4.1.
A software “switch” is available to return NMEA data to the former
standard version . These messages are all prefixed with the string value “NMEA”, and can be
viewed as a common set of sentences describing navigation data.
These NMEA sentences describe mechanics for GPS, GLONASS and WAAS satellites. To
differentiate them, NMEA defines the following naming convention for satellite ids:
 GPS satellites are identified by their PRN numbers, which range from 1 to 32.
 The numbers 33-64 are reserved for WAAS satellites. The WAAS system PRN numbers are
120-138. The offset from NMEA WAAS SV ID to WAAS PRN number is 87. A WAAS PRN
number of 120 minus 87 yields the SV ID of 33. The addition of 87 to the SV ID yields the
WAAS PRN number.
 The numbers 65-96 are reserved for GLONASS satellites. GLONASS satellites are identified
by "64 + satellite slot number". The slot numbers are 1 through 24 for the full GLONASS
constellation, giving a range of 65 through 88. The numbers 89 through 96 are available if