GP37 Rollover
- Thread starter mikehar
- Start date
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M
Magnetron
Guest
For the GP37, no upgrade or patch is available so the GPS unit will need to be replaced.
That being said, in cases where the GPS receiver is being used solely for providing
position/course/speed data and the date information is ignored or not
relevant, THERE WILL NOT BE A PROBLEM and this issue may not even be
noticed!
- Maggy
tl;dr
The GPS Week Number Rollover occurs every 1,024 weeks, or about once every 20
years. GPS systems calculate the date by counting the number of weeks in a 1,023
week cycle. On the evening at the start of the 1,024th week, the GPS week "counter"
will roll back, or start over at zero weeks, (Time Scale Origin). The result of this is that
some GPS receivers may process certain satellite data incorrectly and then provide
incorrect date information.
That being said, in cases where the GPS receiver is being used solely for providing
position/course/speed data and the date information is ignored or not
relevant, THERE WILL NOT BE A PROBLEM and this issue may not even be
noticed!
- Maggy
tl;dr
The GPS Week Number Rollover occurs every 1,024 weeks, or about once every 20
years. GPS systems calculate the date by counting the number of weeks in a 1,023
week cycle. On the evening at the start of the 1,024th week, the GPS week "counter"
will roll back, or start over at zero weeks, (Time Scale Origin). The result of this is that
some GPS receivers may process certain satellite data incorrectly and then provide
incorrect date information.
It depends on the hardware the GP37 was a long carried product. Garmin has rollovers as most due. The limitations is due to the old hardware in the satellites above.
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