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04-27-2013, 04:20 PM
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#1
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Member
Gulf Streamers Club
Join Date: Nov 2012
Location: Charleston SC
Posts: 88
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Do you need External GPS Antennae for Rand McNally GPS
Purchased a RVND 7715 (Precursor to 7720) last year. Plan on a huge trip through some remote areas wondering if I may need an external GPS antennae? I have not experienced the need for a GPS antennae with my boat or car GPS 
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Marty Sierocki
2005 Fleetwood Providence
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04-27-2013, 04:28 PM
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#2
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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We have the 7720, haven't found a need for an external antenna for any of our vehicles. It seems to always find enough satellites to work fine.
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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04-27-2013, 05:40 PM
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#3
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Senior Member
Join Date: Oct 2012
Posts: 2,328
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We have the 7710 and it seems to work fine without an external antennae.
__________________
Paul, Kathy, and Tux the Mini Schnauzer
2014 Tiffin Phaeton 42 LH, 2013 Honda CRV
"When the time comes to look back, make sure you'll like what you see"
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04-27-2013, 06:54 PM
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#4
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Moderator Emeritus
Damon Owners Club Workhorse Chassis Owner
Join Date: Mar 2012
Location: Lone Star State
Posts: 19,203
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Have a 7710 and 7720. Both work inside the RV and the Toad with no external antenna...even sitting at the dinette doing trip planning.
It might not work deep inside a metal body RV like a Prevost bus, if it isn't near a window of any kind...but I am guessing.
Safe travels
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04-27-2013, 07:49 PM
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#5
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Senior Member
Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 19,927
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Being in a remote area will have no influence on GPS reception. You need a clear view of the sky, the signal is coming from a satellite, not a cell tower. Trees, tall buildings can sometimes cause problems, but remote areas won't.
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Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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04-27-2013, 08:00 PM
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#6
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Senior Member
Monaco Owners Club
Join Date: Jun 2011
Location: Montana
Posts: 811
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Maybe this should be in the
Things not to do
But traveling to Zion NP.
The sign said straight ahead to Zion
The Garmin said turn right.
My DW's car GPS said poor signal
Like a smuch I turned right
12 miles then sharp turn on to dirt
Oh no this is wrong
Back track and turn the dan thing off cause all it says I'm not allowed on this road.
I'm Australian, I'm allowed to say
Bloody gps
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2005 Monaco Signature Castle 1V
2013 Subaru Outback Toad
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04-27-2013, 10:31 PM
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#7
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Senior Member
Monaco Owners Club Winnebago Owners Club
Join Date: Sep 2011
Posts: 7,467
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I have used mine inside the garage with out any external antenna.
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US Navy Vet, Liberty Tree Member of Oath Keepers, NRA & VFW Life Member, Alaska EMT.
2009 Safari Cheetah 40 SKQ
2009 Winnebago Chalet 231CR
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04-28-2013, 12:32 AM
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#8
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Oct 2008
Location: Merritt, BC
Posts: 3,639
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When I first purchased my 7710 I ran it along with a Garmin Nuvi for comparison purchases. The 7710 never lost satellite reception without an external antenna, but I did need one for the Garmin. My 7720 was just as good until I switched to the RVND iPad app, which has also been excellent.
This was a couple of years ago so the newer Garmins may have improved.
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Bob, Sherron & Kinsey (RIP 2013-2022)
2017 Tiffin Phaeton 40QBH
2014 Jeep Cherokee Limited
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05-04-2013, 10:53 PM
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#9
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Senior Member
Monaco Owners Club
Join Date: Apr 2011
Location: California
Posts: 788
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My understanding is most all GPS units will be both faster and more reliable
when connected to a antenna mounted on the rooftop.
__________________
2006 Monaco Diplomat Atrium model, 41'
Cummins ISL-400HP CM850
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