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03-28-2018, 10:33 AM
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#1
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Montana Master
Join Date: Oct 2017
Location: Bastrop
Posts: 2,892
M.O.C. #20753
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Consensus on how much to add to your height in an RV GPS
Okay I have been here long enough to know a consensus is not possible
Seriously though, on your GPS do you:
1. put in the measured height of your Monty?
2. add x amount of inches?
3. If 2, how much do you add?
My shiney new Garmin RV 770LMT-S just says to enter in height of RV
Thanks
__________________
Mocha, one-eyed toothless, hurricane survivor, Pirate dog
2019 20th Anniversary Edition 3701LK
B&W 20K for Ford OEM Puck
2018 Ford F-350 Lariat CCLB PSD DRW KJ5CQH
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03-28-2018, 02:35 PM
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#2
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Don't know about Garmin, but our Rand McNally hasn't gotten us in trouble in it's 7 year run including over 75,000 miles many of which were on the back roads to Wildlife Refuges. I input the actual height.
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03-28-2018, 02:37 PM
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#3
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Montana Master
Join Date: Apr 2013
Location: Arroyo City
Posts: 3,110
M.O.C. #13395
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I added a couple inches, in case an overlay had been applied since last Bridge update
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03-28-2018, 03:12 PM
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#4
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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In the road construction we have seen the surface is ground down then the new surface added .If they did not do that and just resurfaced over the existing surface it would not take long for the roadway to gain several inches in height.
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03-28-2018, 03:44 PM
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#5
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Montana Fan
Join Date: Nov 2015
Location: Taylor Ridge
Posts: 224
M.O.C. #18049
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I set mine at 13'6" I measured 13'3". Figured that is what truckers are supposed to be in most states.
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03-29-2018, 05:12 PM
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#6
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Montana Master
Join Date: Oct 2017
Location: Bastrop
Posts: 2,892
M.O.C. #20753
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Okay it looks like folks mostly add 2-3 inches over their measured height
thanks
__________________
Mocha, one-eyed toothless, hurricane survivor, Pirate dog
2019 20th Anniversary Edition 3701LK
B&W 20K for Ford OEM Puck
2018 Ford F-350 Lariat CCLB PSD DRW KJ5CQH
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03-29-2018, 09:13 PM
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#7
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Montana Fan
Join Date: Mar 2016
Location: Sedona
Posts: 176
M.O.C. #18355
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I wish you luck with the 770. Tried both the 660 and the 770 sometime back and neither worked in RV mode. It may have been the fault of Garmin's maps in the area where I was trying them out but did not take the chance and returned both to Amazon. RV height was the least of the problems.
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03-30-2018, 06:05 AM
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#8
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Montana Master
Join Date: Jul 2014
Location: Upstate NY
Posts: 1,788
M.O.C. #14547
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Good reminder as mine was set to before the 2nd a/c and 1" spring blocks were added to ours 2 years ago . It's actually 13'4" but the Garmin 760 is set now at 13'6". Unfortunately, that doesn't 'see' low hanging wires!!
__________________
Dave W
2014 Montana High Country 343RL (Sold!)
2011 Ford 6.7 Lariat CCLB (Went to PU Heaven)
2019 F150SC XLT SE Sport,w/full tow package
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03-30-2018, 06:24 AM
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#9
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Site Team
Join Date: Sep 2017
Location: Oro Valley
Posts: 3,932
M.O.C. #20477
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I have found most of the vertical obstructions you need to worry about are not in your GPS. Tree limbs, gas station overhangs and overhead wires are much more apt to bite you than bridges. Most low bridges tend to have decent sign warnings before you get to them but not all. Where you plan to travel is also a factor, areas that were developed in the last 50 years tend to have few low bridges.
__________________
Zack and Donna plus Millie and Ranger
2018 3160RL
"Life is too short to stay indoors, enjoy the ride!"
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