Differences between GPS cold start and hot start

source:truck tracking webfleet solutions release time:2022-12-30 Hits: Popular:realtime gps tracker online

　　 TK103B

　　The GPS module generally supports two modes: cold start and hot start (note: warm start is not discussed)

　　Generally, the cold start time is much longer than the hot start time. Taking the signal as an example, the hot start time of SirFIII is less than 15 seconds, and the cold start time is less than 42 seconds; In case of weak signal, it will take longer; The hot start conditions are as follows:

　　(1) The location information (longitude, latitude, height) before the last shutdown is known (so the next shutdown in the garage must be a cold start);

　　(2) The current time, calendar and ephemeris are known (real-time clock support and E666 support are required)

　　(3) The time from the last shutdown is less than 4 hours (if the time is too long, the ephemeris changes, that is, the previous satellite cannot see it)

Read recommendations:

gps tracker for trailer

4G GPS Tracker for vehicles Processing

10000mAh Magnetic Asset GPS Tracker

Comprehensive management of GPS satellite positioning and driver smart card for business and officia

GPS Earth Coordinate Series Brief description

Last article：GPS application field

Next article：GPS category

Related Information

4G GPS Tracker for vehicles maker

2023-04-23

Pet GPS Tracker Vendor