Gps; A-Gps Expiry Date; Gps Features - Polar Electro Vantage M User Manual

GPS

Your watch has built-in GPS that provides accurate speed, distance and altitude measurement for a
range of outdoor sports, and allows you to see your route on map in the Flow app and web service after
your session.
The watch uses Assisted GPS (A-GPS) to acquire a fast satellite fix. The A-GPS data tells your watch the
predicted positions of the GPS satellites. This way the watch knows where to search for the satellites and
thus is able to acquire signals from them within seconds, even under difficult signal conditions.
The A-GPS data updates once a day. The latest A-GPS data file is automatically updated to your watch
each time you sync it with the Flow web service via FlowSync software. If you sync your watch with the
Flow web service via Flow app, the A-GPS data file update takes place once a week.

A-GPS EXPIRY DATE

The A-GPS data file is valid for up to 14 days. Positioning accuracy is relatively high during the first three
days, and progressively decreases during the remaining days. Regular updates help to ensure a high level
of positioning accuracy.
You can check the expiry date for the current A-GPS data file from your watch. Go to Settings > Gen-
eral settings > About your watch > A-GPS exp. date. If the data file has expired, sync your watch
with the Flow web service via FlowSync software or with the Flow app to update A-GPS data.
Once the A-GPS data file has expired, more time may be required for acquiring the current position.

GPS FEATURES

Your watch includes the following GPS features:
•
Distance: Accurate distance during and after your session.
•
Speed/Pace: Accurate speed/pace information during and after your session.
•
Altitude, ascent and descent: Real-time altitude measurement, as well as ascended and des-
cended meters/feet.
•
Running index: Running Index is based on heart rate and speed data measured during the run. It
gives information about your performance level, both aerobic fitness and running economy.
For best GPS performance, wear the watch on your wrist with the display facing up. Due to the location
of the GPS antenna on the watch, it is not recommended to wear it with the display on the underside of
your wrist. When wearing it on the handlebars of a bike, make sure the display is facing up.
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