5.4 GPS Menu

You can change the dynamics to adapt to your testing requirements. 

High dynamics

Use this setting when you are performing high-dynamic applications, such as brake stop testing. 

Medium dynamics

This is the default value that is suitable for all applications that are neither high-dynamic or low-dynamic. 

Low dynamics 

Use this setting for less dynamic applications, such as steady speed measurement or coast-down testing. 

This gives the option to configure the DGPS Settings for your VBOX 3i unit. 

You can select a DGPS/RTK mode in the dropdown menu:

• None
• CMR (2 cm RTK)
• RTCMv3 (2 cm RTK)
• NTRIP
• MB-Base
• MB-Rover
• RTCM (40 cm)
• SBAS

We recommend that you use a 2-cm correction (RTCM standard message type). 

RS232 baud rate

This setting lets you change the DGPS serial rate. Use the dropdown menu to select the rate you need. To ensure that the VBOX receives the DGPS correction signal you are using, you must set the correct RS232 rate.

Leap second

You can change the leap second value if required. The value was increased to 18 seconds as of December 2016 - you can find more information here. 

Elevation mask

You can also change the elevation mask, with a selectable range from 5° to 30° (10° is the default). If the testing area has nearby trees or buildings, you may benefit from increasing this value to reduce the multi-path effect. You can find more information on this here.

Note: Increasing the elevation mask value will reduce the number of satellites the VBOX will be able to use.