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Qstarz statement for the April 2019 GPS Week Number Rollover issue |
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Taipei, Taiwan, April 03, 2019 |
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Regarding the GPS Week Number Rollover (WNRO) issue, the GPS date and time are calculated based on the number of week
during the development of the GPS system, and the week number of the chip plan can only be calculated up to 1024 weeks,
or about 19.7 years. After every 1024 weeks, this counter is "reset" to zero and the GPS time starts counting again. The
first GPS week rollover occurred in August 1999. The second time will occur on April 6, 2019.
Click here to read the US Department of Homeland Security’s memorandum about the upcoming Global Positioning System Week
Number Rollover Event.
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| The affected product will display the wrong date and time when the GPS week is rollover. However, the positioning
accuracy is not affected. The wrong time will affect the computing and other functions of Qstarz's PC software.
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| Therefore Qstarz is devoted ourselves to test and correct our products with the most strict attitude. All Qstarz GNSS
products such as LT-6000S [GNSS], BL-1000GT and BL-1000ST will not be affected by the GPS week rollover. For affected
Qstarz GPS models, Qstarz will one after another release corresponding model’s new firmware to solve the issue.
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| The following are the affected Qstarz GPS product models:
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Selling Models:
- BT-Q818XT
- BT-Q1000XT
- BT-Q1000XTM
- CR-Q1100P
- BT-Q1300ST
Discontinued Models:
- BT-Q1000EX
- LT-Q6000
- LT-6000S
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| Please click here and select your product model which has provided new firmware to download. Please make sure to read
the operation guide and follow the steps to update firmware. |
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For more information about Qstarz product, please go to http://www.qstarz.com for more information. |
