What would be an acceptable collection rate for a GPS receiver at a subordinate station if the base station data collection interval is 2 seconds?

In surveying, particularly when using GPS technology, the collection rate of data at subordinate stations needs to align closely with that of the base station to ensure accurate measurements and data integrity. The base station is the reference point that provides the necessary corrections for the GPS signals received by subordinate stations.

When the base station data collection interval is set to 2 seconds, this means that it is taking measurements twice every second. For subordinate stations, a collection rate that is too slow could lead to a loss of synchronization with the base station. A collection interval of 4 seconds for a subordinate station is twice that of the base station, allowing enough frequency to capture the variations in the signals while not being overly burdensome on data processing.

By collecting data at a 4-second interval, the subordinate station can effectively utilize the correction data from the base station, ensuring the measurements remain relevant and accurate. This interval strikes a balance between processing capability and data accuracy, making it an acceptable choice. Collecting data at 1 second would be more frequent than required, which can create unnecessary complexity. The other intervals, 3 seconds, and 5 seconds, may either not align well with the base station data collection or exceed necessary precision for effective coordination.