Racelogic VBOX Touch Bedienungsanleitung

VBOX Touch Having Trouble Locking onto Satellites

If VBOX Touch is displaying a flashing red satellite icon

at the top of the screen, this indicates that the unit is struggling to acquire satellite lock. A minimum of 4 satellites are

required to calculate position, the current number detected can be seen within the Diagnostic Settings screen. If after

looking at the guidance below, VBOX Touch is still having trouble locking onto satellites, please contact Racelogic

Support.

IMPORTANT - The first time that the unit is used, it may take up to 10–15 minutes to fully acquire satellites.

After this, it will usually take 1–2 minutes to acquire satellites.

Using Internal Antenna

VBOX Touch has an internal patch antenna, meaning that in many circumstances where the unit has a clear view of the

sky, an additional antenna is not required. However, the satellite signals can be influenced from various factors.

https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_Touch/Troubleshooting/

VBOX_Touch_Having_Trouble_Locking_onto_Satellites

Mounting Location

The unit should be mounted on the windscreen in a suitable location and adjusted as necessary. Any potential

interference from features such as roof bars and windscreen wipers should be minimised as much as possible.

Athermic Windscreens

Some modern cars are fitted with a special windscreen that cuts down the amount of UV (Ultra Violet) rays that will be

transferred through the windscreen which help cut down on glare. These windscreens are called athermic, or UV Coated

and will dampen/reduce GPS signals coming through the windscreen, so if you have an athermic windscreen, it means

you will not receive the same quality of signal as you would do by taking the VBOX Touch outside of the car.

To tell if you have an athermic windscreen, you can either contact the manufacturer of your vehicle, or talk to the main

authorised dealer who may be able to tell you. If you cannot receive a firm yes or no, then another way to check is to

power up VBOX Touch and hold it outside of the vehicle, receive a satellite fix and use the Diagnostic Settings screen

to see how many satellites you can see. Once you have noted this down, move the unit inside the car and see if the

GNSS signal drops by 2-4 sats. If it does this immediately, then you probably have an athermic windscreen.

https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_Touch/Troubleshooting/

VBOX_Touch_Having_Trouble_Locking_onto_Satellites

Using External Antenna (RLACS262)

If you are using an external antenna (RLACS262) and the unit is having trouble locking onto satellites, then please

follow the checklist below for typical solutions.

Common problems with GNSS antennas is due to damage to the cable and the connector. The cable should be placed

in a position that avoids tight angles being inflicted on the cable, as this can damage the thin core.

• Ensure that the antenna is placed in a position where it has an unobstructed view of the

sky (see GNSS Antenna Placement below).

• Check the antenna connection with VBOX Touch; 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.

• 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.

GNSS Antenna Placement

For optimum GNSS signal reception, make sure that the antenna is fitted to the highest point of the vehicle away from

any obstructions that may block satellite reception. The GNSS antenna works best with a metal ground plane

underneath, silver foil, or a metal plate beneath the antenna can improve reception significantly if you don’t have a large

metal roof.

Click here for more information on antenna placement.

Environment

Tall buildings or trees can block GNSS signals, causing a reduction in the number and quality of satellites being tracked,

https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_Touch/Troubleshooting/

VBOX_Touch_Having_Trouble_Locking_onto_Satellites

leading to inaccurate position measurements and a noisy velocity signal.

GNSS works best in open areas/ Avoid tree lined roads

GPS Coldstart

If VBOX Touch is struggling to acquire satellite lock, a GPS coldstart may be required. This may be necessary when the

unit hasn’t been used for a number of days or has dramatically moved location since its last use.

To perform a coldstart, press the COLDSTART button within the Diagnostics Settings menu.

https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_Touch/Troubleshooting/

VBOX_Touch_Having_Trouble_Locking_onto_Satellites

When the button has been pressed, the unit will make an audible sound and a ‘PLEASE WAIT’ message will be

displayed on the screen which will count down from 3. The number of satellites will then be displayed as '00' and GPS

status will show ‘SEARCHING FOR SATELLITES’ until satellite lock has been acquired. It will take approximately 25 –

30 seconds for the unit to reacquire satellite lock.

https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_Touch/Troubleshooting/

VBOX_Touch_Having_Trouble_Locking_onto_Satellites

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