VBOX III User Guide
Page 21 of 30
15/07/2011
Troubleshooting Guide
Trouble Locking onto Satellites
If the VBOX 3 is having trouble locking onto satellites then please follow the checklist below for typical solutions:
Ensure that the antenna is placed in a position where it has an unobstructed view of the sky. (See „GPS Antenna Placement‟ below)
Check the antenna connection with the VBOX 3; only small amounts of dirt in the socket can cause a significant reduction in signal strength. Also
check the cable at the plug and along its length for any damage.
Check that the power supply is connected and free from damage.
If possible try another known working antenna, to confirm antenna functionality.
Perform a GPS Coldstart and then leave the unit powered up in an open static position for at least 15 minutes. See „VBOX 3 not responding‟ below.
Once the VBOX 3 has locked on to 4 or more satellites it will be ready for use.
No Communication with PC
If the red LED on the front of the VBOX 3 is not illuminated then there is no power to the unit; check that battery contains adequate charge or, if using
a cigar lighter, check internal cigar lighter fuse.
Check that the correct COM port has been selected in VBOXTools
Check that no other programs are using the same COM port.
Disconnect the power to the VBOX 3 then reconnect it.
COM Port Unavailable
The computer may have been started with a different VBOX 3 connected to it; disconnect the VBOX 3, restart the computer then reconnect the
VBOX3.
Another software package installed on your computer may have reserved the COM port.
No Data is logged to the VBO file
Check satellite reception. Loss of reception may prevent data from being logged to the card (dependent on logging mode).
