| GPS-Data-Team.com
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peter.gordon2
GPS: Garmin Nuví 760
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 Posted: Sun May 17, 2009 11:12 Post subject: Can external antenna's increase accuracy? |
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G'day all.
Been looking at external antenna's for my Nuvi 760. Before I purchase one, I was wondering if they are capable of giving my GPS increased accuracy over the standard internal antenna?
I've done a search on here and nothing related has come up?
Cheers |
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allenpremier
GPS: garmin 250W
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| Posted: Sun May 17, 2009 23:34 Post subject: Can external antenna's increase accuracy? |
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| A external antenna's doesn't increase accuracy. It allow to obtain more straing of satelitte signal.
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tv
GPS: Garmin Nuvi 760
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| Posted: Wed May 20, 2009 15:20 Post subject: external antennas |
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Hmmm.
I always thought that the more satilites seen the more accurate the readings?
So if an external antenna helps with aquiring more satilites then accuracy happens by default?
Sit under my carport without external antenna, I get 7 satilites and accuracy is 10 -12 mtrs. With the external antenna, 4-5 mtrs!
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quaddin
GPS: Garmin Oregon 300
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| Posted: Wed May 27, 2009 02:56 Post subject: External antenna |
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| I use an external antenna on my Garmin 3 Plus and it does give better reception in heavy tree cover and around other obsticles. An external antenna on a Nuvi should give you a better view of the sky than a unit mounted on the dash of a vehicle. Go with the external. You won't be sorry.
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ivan.ivasenko
GPS: nuvi 765T
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| Posted: Sat May 30, 2009 06:44 Post subject: Re: external antennas |
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| tv wrote: | Hmmm.
I always thought that the more satilites seen the more accurate the readings?
So if an external antenna helps with aquiring more satilites then accuracy happens by default?
Sit under my carport without external antenna, I get 7 satilites and accuracy is 10 -12 mtrs. With the external antenna, 4-5 mtrs! |
You're 100% right and I agree with you  - the more powerful signal, the more accuracy you'll get on your GPS device.
Cars, which have factory GPS, usually have external antenna it worth to have on our cars IMHO.
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rxr29
GPS: Nuvi 670
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| Posted: Tue Jun 02, 2009 04:29 Post subject: External Antenna |
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| Could anyone recommend a specific brand that would work well with the Garmin Nuvi 670?
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Guest
GPS: Nuvi 670
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| Posted: Sun Jun 21, 2009 22:49 Post subject: better antenna |
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Definitely, the better antenna the more birds.
Precision GPS devices used with very accurate time signal applications try to get 12 GPS satellites. I cannot remember the time accuracy but it was in the 100 nanosecond range.
Of course car navigation GPS does not need that accuracy, but the better the antenna the more birds the more accurate the result; still holds.
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emtekworks
GPS: Nuvi 205
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| Posted: Thu Jul 09, 2009 20:40 Post subject: Antenna |
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| Yeah, the more sats, the better the accuracy
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eyeo12
GPS: Garmin Nuvi 300
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| Posted: Thu Jul 09, 2009 20:56 Post subject: Re: Antenna |
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| Agreed but I never had a need for external antenna. The car unit snaps to roads anyway.
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pjnuk
GPS: Garmin Nüvi 765T
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| Posted: Fri Jul 17, 2009 18:20 Post subject: External aerial |
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| Can someone recommend an external car aerial for the 765T? Hopefully it wil stick to the car roof magnetically. Thx.
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t.sew
GPS: Zumo 660, Nuvi 770
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thuytle99
GPS: Nuvi 765T
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| Posted: Mon Aug 03, 2009 09:43 Post subject: Can external antenna's increase accuracy? |
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| Just FYI, got the 765T plus garmin stock antenna giving me more SAT signal
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johmazz2006
GPS: Garmin Nuvi 765
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| Posted: Mon Aug 03, 2009 19:37 Post subject: Re: Can external antenna's increase accuracy? |
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| External aerial definately gives better reception of satelites. Haven't had to use it yet on the 765 yet though.
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xadrianx
GPS: Garmin StreetPilot 7200
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| Posted: Tue Aug 04, 2009 21:02 Post subject: external antenna |
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I use an external antenna on my Garmin Streetpilot 7200 and it does give better reception.
Garmin oem antenna, no china....
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vancewankai
GPS: Garmin Nuvi 370
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| Posted: Mon Aug 17, 2009 01:52 Post subject: External |
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| I bought an external antenna and it was completely worthless. It made no difference whatsoever.
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