GNSS Module
L76 EVB User Guide
L76_EVB_User Guide Confidential / Released 21 / 25
PMTK Command
You can send PMTK command by PowerGPS. The format of PMTK command includes only characters
between „$‟ and „*‟, for example: PMTK869,0.
Figure 13: MTK Command
Automatic TTFF Testing
This tool allows you to measure the TTFF (Time to First Fix) under different testing conditions. You can
choose to test the TTFF from full start, cold start, warm start and hot start and the number of tests can be
chosen from 1, 10, 20, 100, 1000 and 10000. Click on the Run button to start the test and it can be
stopped by clicking on the Stop button. The configuration is as below:
Start “MTK” menu, and click “Static TTFF Testing”, then “Static TTFF Testing” as shown below:
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