D Logs summary
204 MiLLennium GP SCard Software Version 4.50 Command Descriptions Manual Rev 1
RTCA Standard Logs
The RTCA (Radio Technical Commission for Aviation Services) Standard is being d esig ned to supp ort Different ial
Global Navigation Satellite System (DGNSS) Special Category I (SCAT-I) precision instrument approaches. The
RTCA Standard is in a preliminary state. NovAtel’s current support for this Standard is based on "Minimum
Aviation System Performance Standards DGNSS Instrument Approach System: Special Category I (SCAT-I)" dated
August 27, 1993 (RTCA/DO-217).
See RTCA Format Messages, Page 45 for more detailed information on RTCA standard logs.
RTCM Standard Logs
The Radio Technical Commission for Maritime Services (RTCM) was established to facilitate the establishment of
various radio navigation standards, which includes recommended GPS differen tial stand ard form ats.
The standards recommended by the Radio Technical Commission for Maritime Services Special Committee 104,
Differential GPS Service (RTCM SC-104,Washington, D.C.), have been adopted by NovAtel for implementation
into the GPSCard. Because the GPSCard is capable of utilizing RTCM formats, it can easily be integrated into
positioning systems around the globe.
See RTCM Format Messages, Page 47 for more detailed information on RTCM standard logs.