Novatel OM-20000077 사용자 설명서

The receiver stores different types of information used to accelerate the TTFF and to configure the I/O in 
NVM. See Table 5 below for a partial list of the data stored in NVM.

Below is the SUPERSTAR II’s default configuration with no valid NVM elements:

Protocol on port #1: 

Binary

Baud Rate on port #1: 

9600

Protocol on port #2: 

RTCM-104

Baud Rate on port #2: 

9600

DGPS Correction Timeout: 

45 seconds

Default Message List:

Binary: 

Navigation Status User Coordinates (Message ID# 20) @ 1Hz

NMEA:

GGA @ 1Hz

Time Align Mode: 

ON

 1. The data contained in NVM is always used if the DISC_IP2 is left unconnected or tied to HI logic.

2.

The default data transfer rate is 9600 bps unless your receiver model has Carrier Phase Output (CP) 
capability in which case it may be 19200. A list of models is in Appendix A of the L1 GPS Firmware 
Reference Manual and in our Price List available from the Sales side menu of our website at 

.

3.

If DISC_IP2 is tied to LO logic, the default ROM configuration will be used and the following 
parameters will not be read from NVM:

Position

Almanac

Time

UTC Correction and IONO Parameters

TCXO Parameters

ALMANAC

The most recent almanac

LAST POSITION

Position in NVM is updated at different rates depending on the 
application. The last known position is always kept in battery back-
up SRAM.

DGPS CONFIGURATION

Differential GPS configuration

TTL CONFIGURATION

Contains the following configuration information:

1. Mode of operation

4. Time Alignment Mode State

2. Baud Rate: 300 to 19200

5. Mask Angle

3. Default Binary message list

6. Datum