Specifications
Enable GPS support – Enables support for querying GPS information from supported modems.
Enable GPS server on WAN – Enables a TCP server on the WAN side of the firewall, which will periodically send GPS NMEA sentences to connected clients.
Enable GPS server on LAN – Enables a TCP server on the LAN side of the firewall, which will periodically send GPS NMEA sentences to connected clients.
GPS server port number
Enable GPS reporting to remote server – Enables periodic reporting of GPS NMEA sentences to a remote server. The router will buffer NMEA data if errors
are encountered or if the Internet connection goes down and send the buffered sentences when the connection is restored.
Remote server hostname or IP
Remote server port
Report only over specific time interval – Restricts the NMEA sentence reporting to a remote server to a specific time interval.
GPS NMEA GGA Reporting
The device reports GPS information with the NMEA (National Marine Electronics Association) GGA sentence format. GGA provides essential fix data.
Example:
$GPGGA,1753405,4916.450,N,12311.127,W,2,06,1.5,117.3,M,−26.574,M,6.0,0138*47
Sample Data Description
1753405 Time of fix – 17:34:05 UTC
4916.450,N Latitude 49 deg. 16.450 min North
12311.127,W Longitude 123 deg. 11.127 min West
2
Fix quality: 0 = fix not available; 1 = GPS fix; 2 = Differential GPS fix; 3 = PPS fix; 4 = Real Time Kinematic; 5 = Float RTK; 6 = estimated (dead
reckoning); 7 = Manual input mode; 8 = Simulation mode
06 Number of satellites being tracked
1.5 Horizontal dilution of precision (HDOP) – relative accuracy of horizontal position
117.312,M Altitude in meters above mean sea level
−26.574,M Geoidal separation: height of mean sea level above WGS-84 earth ellipsoid (negative value means mean sea level is below ellipsoid)
6.0 Time in seconds since last update from differential reference stations
0138 Differential reference station ID number
*47 Checksum – used by program to check for transmission errors
For more examples and information about NMEA GGA, see the following websites:
http://aprs.gids.nl/nmea/#gga
http://www.gpsinformation.org/dale/nmea.htm#GGA
SMS
SMS (Short Message Service, or text messaging) requires a cellular modem with an active data plan. SMS is not designed to be a full remote management feature: SMS
allows you to connect to the router for a few simple queries or commands with a text messaging service (e.g., from your phone). A modem that does not have an active data
CradlePoint AER 2100 – Manual
07/03/2014
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