Instruction manual

Signal Acquisition 10
Signal Acquisition
The operation of the Velocitek SC-1 relies on low-power radio signals from GPS satellites that orbit the
earth at an altitude of approximately 20,000 km. As a result, the SC-1 must be outdoors with a clear
view of the sky to function properly.
When the SC-1 is first turned on, it must download information from GPS satellites before it can acquire
a GPS solution. The data download process normally takes 1-2 minutes or up to 5 minutes if fresh
batteries have just been installed.
The illustration depicts the GPS signal acquisition process.