Sigma ROX 10.0 G User Manual page 53

Important information, troubleshooting, and FAQ
Frequently asked questions
www.sigmasport.com
Why do I always have to calibrate the current altitude?
barometric air pressure is used determine the current altitude, the constant
changes to the current air pressure lead to changes to the current altitude. To
offset these fluctuations and achieve an accuracy of one meter in the current
altitude information, a reference altitude should be entered before each trip.
entering this reference altitude is known as calibration.
Data transfer between the ROX 10.0 GPS and the Data Center software
does not work or is faulty or slow:
please ensure that the RoX 10.0 gps is installed in the device manager
as a Com port.
Avoid connecting the device via a Usb hub.
preferably use Usb 1.1 or 2.0 connections.
If you still have data transfer problems, please contact our customer service
team.
ROX 10.0
ROX 10.0
page 51