VBOX 3iSL User's Guide download pdf (Page 44)

VBOX 3iSL User Guide

Page 44 of 53

11/04/2012

VBOX 3iSL not responding - GPS Coldstart

 The GPS engine has locked up.

 Perform a GPS Engine Coldstart

A GPS coldstart forces the GPS engine to reset its downloaded almanac of current satellite positions. This can be useful if a VBOX 3iSL is having trouble locking

onto satellites, which typically occurs if a VBOX 3iSL has not been used for several weeks or if it was last used a long distance (over one thousand miles) away from

the current location.

After performing a GPS coldstart leave the VBOX 3iSL 

becomes solid green.

Once the VBOX 3iSL has downloaded the new almanac it will reacquire satellites in noisy situations (such as near trees, buildings and under bridges) much more

quickly. It will also acquire satellite much more quickly on power-up.

To perform a GPS coldstart on a VBOX 3iSL perform the following actions:

 VBOX 3iSL for five seconds until a long beep is sounded.

 g that the Coldstart has been performed and the GPS engine is now not locked onto

any satellites.

 After approximately 30- satellites

that it is locked onto.

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VBOX 3iSL User's Guide Page 44

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