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Figure 2.10 Available NMEA messages.
NOTE: The output NMEA messages will be discarded or not transmitted if the
values of the baud rate is not sufficient to transmit the desired messages. Also, the
discarded part won’t be output in the next epoch.
NOTE: The maximum update rate is 4 Hz.
2.2.6 GPS Satellite Information
Figure 2.11 shows the observable GPS satellite information, which includes SV PRN
numbers, the corresponding values for elevation, azimuth, and SNR, and indication
for utilization of satellite information in the calculation of the receiver’s position. For
a satellite not used in the calculation of the receiver’s position, the satellite will be
marked by “x” in the corresponding row of “Used in Position” and gray color in the
SNR diagram. This sub-window can be activated by two ways: “Windows/Channel
Signal Level View” or the shortcut button ?.