GNSS Module Series
L80&L80-R&L86&LC86L EVB User Guide
L80&L80-R&L86&LC86L_EVB_User_Guide 23 / 30
Figure 14: PMTK Command Sending via PowerGPS
5.3. Automatic TTFF Testing
PowerGPS tool allows users to measure the TTFF (Time to First Fix) under different testing conditions.
The TTFF can be tested under full cold start, cold start, warm start or hot start conditions, and the number
of tests can be selected from 1, 10, 20, 100, 1000 and 10000. Click the “Run” button to start the test. The
test can be stopped by clicking the “Stop” button.
The following are the detailed configuration steps during TTFF testing:
Step 1: Start “MTK” menu, and then click “Static TTFF Testing” to enter Automatic TTFF Testing as
shown below:
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