Ngonyama  Desert Strider Technologies

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23/05/2019

DID YOUR GPS RESET TO ZERO?

Has your GPS device started acting strange lately? Maybe it suffers from the GPS Week Number Rollover [WNRO].
Many GPS devices are10 bit field coded in “weeks” on their time messages – this means that only a total of 1024 weeks could be handled. This is called an epoch. At the end of each epoch, your GPS device resets the week number back to zero and starts counting again.
The current epoch started on the1st August 1999 and the GPS rollover was on the 6th April 2019 where it was reset to week Zero and will start counting again.
Multiband receivers accepting modern GPS signals that use 13-bit week encoding (L2C, L5) do not have the 1024 week epoch issue.
When the rollover happens older devices may reset their date, potentially corrupting navigation data and throwing off location estimates. GPS relies on precise timing data to operate, and each nanosecond the clock is out translates into a foot of location error.
The best way to check if your GPS device falls into the current WNRO is to update or upgrade its software, if your device is able to accept software updates.



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Blogs:

A Visit to Dinokeng Game Reserve:


 Coffee break @ Thorn Tree Bush Camp

A Taste of Africa recently visit Thorn Tree Bush Camp in the Dinokeng Game Reserve -read all about it in this blog: Click on photo














Brêkkie @  Kwalata - see our story on our visit to Dinokeng Game Reserve in May 2019 where we feature Kwalata Game Lodge - click on photo

 https://sway.office.com/9ZBHAUaPAd9VHGEi?ref=Link 


The Wild Horses of the Namib…the greatest survival story on earth

 


Read how these horses survived the Namib dessert for over 100 years. Click on photo.

A FOOD FOR THOUGHT: [click on photo]

A visit to Hazel Food Market in Pretoria.

 

 

Experience Africa Newsletter  winter 2013

 https://ngonyamarentals.blogspot.com/2013/05/experience-africa-winter-2013.html