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In working with one of my testers and 5 TND's later... The issue was when he placed his 730 in his truck he would constantly get "No GPS". I would get the unit back and nothing would be wrong with it. This has been going on for a few months... what was found.
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2016 Freightliner Cascadia. They claim it’s the new Detroit Diesel Collision Avoidance System. The ones that are equipped with the Meritor System are not experiencing any problems.
In the past 2 weeks, they have changed some of the wiring harnesses and it has cut down on the number of no gps incidents. But has caused the truck position in the wrong places on the map. They are looking into this problem and hope to have these issues resolved.
What Freightliner supposedly found is that in the communication between the radar, tractor ecm, and QUALCOMM system. A bleed frequency is being generated causing it to interfere with the gps signal. Apparently even the QUALCOMM gps is also being effected the same way.
Thanks,
Mark
Support Thread for the TND 500, TND 700 or future Rand McNally products. (part two)
Discussion in 'Trucking Electronics, Gadgets and Software Forum' started by Mark Kling, Jul 7, 2014.
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Any luck on the TND 710 firmware? -
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Also having 21 files that needed fixing after doing an update and that the unit hasn't been used on the road seems a little suspicious.
Thanks
John -
Thanks,
Mark -
If this is normal then I won't worry about giving the unit to the wife next time I get to see her.I was just concerned that there was a software crash happening upon shut down which would adversly affect the unit when using it.
Thanks
JohnLast edited: Jun 23, 2016
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I have a TND 720 and a TND 730. Both have issues with the mini usb connection. The connection appears to be loose and so not supplying constant power. The 720 will fade to a white screen or one with vertical lines. The 730 won't stay connected long enough to keep the unit powered.
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Has the no charging issue been resolved? My tnd 80 won't turn on or charge.
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I haven't been able to resolve anything with mine.
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Hope this helps.
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