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<DIV>Hi Taryn</DIV>
<DIV>I saw a demo of the collector app and it is good. </DIV>
<DIV>Accuracy – 3 - 5m . </DIV>
<DIV>Contact Lebo at ESRI offices in Midrand. </DIV>
<DIV>She knows her software and can answer any questions.</DIV>
<DIV> </DIV>
<DIV>If you can afford to buy a good GPS contact Kevin Bolton (just Google
him)He is a qualified surveyor and knows his subject matter. </DIV>
<DIV> </DIV>
<DIV>Hope this helps</DIV>
<DIV>Lydia</DIV>
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<DIV style="font-color: black"><B>From:</B> <A
title=gerhardus.geldenhuis@gmail.com
href="mailto:gerhardus.geldenhuis@gmail.com">Gerhardus Geldenhuis</A> </DIV>
<DIV><B>Sent:</B> Wednesday, May 20, 2015 10:27 AM</DIV>
<DIV><B>To:</B> <A title=africa@lists.osgeo.org
href="mailto:africa@lists.osgeo.org">Africa local chapter discussions</A> </DIV>
<DIV><B>Subject:</B> Re: [OSGeo Africa] Field mapping GPS suggestions
please</DIV></DIV></DIV>
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<DIV dir=ltr>Hi,
<DIV>I am no expert but I can't imagine that a mobile phone will be equivalent
in accuracy to something like a Trimble. You most certainly pay for the brand
but you also pay of the more accurate internal clock that plays a crucial part
in the error margin. I have used a Garmin 60CSx with a lot of success doing
Geological mapping. If you add an external antenna that could also help with
accuracy.</DIV>
<DIV> </DIV>
<DIV>Regards</DIV></DIV>
<DIV class=gmail_extra>
<DIV> </DIV>
<DIV class=gmail_quote>On 20 May 2015 at 08:21, Taryn Riddin <SPAN
dir=ltr><<A href="mailto:taryn.riddin@live.co.za"
target=_blank>taryn.riddin@live.co.za</A>></SPAN> wrote:<BR>
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<DIV>Good day</DIV>
<DIV> </DIV>
<DIV>Is anyone able to give me some advice please on choosing a GPS setup to
map estuarine habitats in the field? Our SA estuaries are often very
narrow (1 to 2 km wide) and habitats small. We distinguish between
supratidal salt marsh, intertidal salt marsh, reeds and sedges, among other
habitats. Reeds and sedges often form a very narrow band along an
estuary. Accuracy needs to be as close as possible to 1 m2, perhaps even
better.</DIV>
<DIV> </DIV>
<DIV>Someone suggested using a windows / android phone running ArcGIS
Collector as the GPS in them is as good as a Trimble and also cheaper?
It could also be a separate GPS linked to a tablet, not necessarily a single
hand help GPS unit with mapping options. We use ArcGIS software for
final map productions and analysis.</DIV>
<DIV> </DIV>
<DIV>I am not very clued up on these aspects so any advise would be greatly
appreciated.</DIV>
<DIV> </DIV>
<DIV>Many thanks in advance,</DIV>
<DIV>Taryn</DIV>
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<HR>
<EM><FONT style="COLOR: #008000" size=2>Research Associate - Botany
Department<BR>Nelson Mandela Metropolitan University<BR>P.O. Box 77000<BR>Port
Elizabeth<BR>6070</FONT></EM></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV></DIV><BR>_______________________________________________<BR>Africa
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<DIV> </DIV>-- <BR>
<DIV class=gmail_signature>Gerhardus Geldenhuis</DIV></DIV>
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