Figure 5 shows an example of the time series of data
transmission delay measurement. The long vertical lines
indicate the transmission is suspended every 5.0 minutes.
The communication line of DMCA is designed to quit
sending data so as to provide the link to as many users
as possible. It takes several, often several dozen,
seconds to recover. Since no ‘Fix’ solution can be
obtained during the period of the deficit, the ratio of
‘Fix’ solution to the total positioning falls to less than
100 %.