shrug-l: Trimble ProXRS VS Trimble GeoExplorer XT
Tripp Corbin
tcorbin@keckwood.com
Wed, 19 Oct 2005 07:47:00 -0400
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Holli,
Based on my experience, which has not been with Trimble units, in order
to get reliable sub-meter locations WAAS correction is not sufficient. I
would only guarantee plus or minus 2 to 3 meters using WAAS alone. In
order to get reliable sub-meter positions in the field without post
processing, I use either Coast Guard beacons or Omnistar corrections.
Otherwise post processing is required.=20
=20
I hope this helps.=20
=20
=20
Tripp Corbin, MCP, GISP
Associate Vice President, GIS/Mapping
ESRI Authorized Instructor
Keck & Wood, Inc.
<http://www.keckwood.com/> www.keckwood.com
(678) 417-4013
(678) 417-8785 fax
=20
Keck & Wood, Inc now offers Introduction to ArcGIS/ArcView training
classes. Contact me for more information.=20
Currently Scheduled Classes:=20
Introduction to ArcGIS I - October 25-26 in Thomasville, GA (Class is
sponsored by the Southwest GA RDC GIS Dept.
<http://www.swgrdc.org/planning.htm> )=20
Introduction to ArcGIS II - November 7, 9, & 10 at the SHRUG Workshop
<http://shrug-gis.info/workshop05> in Tallahassee, FL=20
-----Original Message-----
From: shrug-l-admin@lists.dep.state.fl.us
[mailto:shrug-l-admin@lists.dep.state.fl.us] On Behalf Of Holli Brandt
Sent: Tuesday, October 18, 2005 7:50 AM
To: shrug-l@lists.dep.state.fl.us
Subject: shrug-l: Trimble ProXRS VS Trimble GeoExplorer XT
Good Morning Everyone -
Yes, I am still plugging the forum for information even though I have
moved. Still the best source for information and opinions.
=20
We are going to be completing some field work in the near future and are
looking into renting a GPS Unit (trying it out before we buy). For
sub-meter accuracy, the following two units were recommended time and
time again, the Trimble ProXRS VS Trimble GeoExplorer XT. I am aware of
the basic differences between these two units, ProXRS has external
antennae and differential GPS and the GeoXT has internal antennae and
WAAS. I know which way I am leaning but would like to hear what any of
you have to say before I commit.
=20
Any personal opinions or criticisms about these units? Which do you
suggest? Any other GPS unit you prefer?
=20
=20
Thanks - Holli=20
=20
=20
Holli M. Brandt
Project Manager
EnVetCo
500 S. Independence Blvd
Suite 200
Virginia Beach, VA 23452
(757) 518-8491
brandth@tesorocorp.com <blocked::mailto:brandth@tesorocorp.com>=20
=20
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<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<TITLE>Message</TITLE>
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<BODY>
<DIV><SPAN class=3D918044211-19102005><FONT face=3DArial color=3D#0000ff =
size=3D2>Holli,</FONT></SPAN></DIV>
<DIV><SPAN class=3D918044211-19102005><FONT face=3DArial color=3D#0000ff =
size=3D2>Based=20
on my experience, which has not been with Trimble units, in order to=20
get reliable sub-meter locations WAAS correction is not sufficient. =
I would=20
only guarantee plus or minus 2 to 3 meters using WAAS alone. In order to =
get=20
reliable sub-meter positions in the field without post processing, I use =
either=20
Coast Guard beacons or Omnistar corrections. Otherwise post processing =
is=20
required. </FONT></SPAN></DIV>
<DIV><SPAN class=3D918044211-19102005></SPAN> </DIV>
<DIV><SPAN class=3D918044211-19102005><FONT face=3DArial color=3D#0000ff =
size=3D2>I hope=20
this helps.</FONT> </SPAN></DIV>
<DIV> </DIV>
<DIV> </DIV>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align=3Dleft>Tripp =
Corbin, MCP,=20
GISP</P>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align=3Dleft>Associate =
Vice=20
President, GIS/Mapping</P>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align=3Dleft><I>ESRI =
Authorized=20
Instructor</I></P>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align=3Dleft><B>Keck =
& Wood,=20
Inc.</B></P>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align=3Dleft><A=20
href=3D"http://www.keckwood.com/"><FONT color=3D#0000ff><U><FONT=20
size=3D2>www.keckwood.com</FONT></U></FONT></A></P>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align=3Dleft><FONT =
size=3D2>(678)=20
417-4013</FONT></P>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align=3Dleft><FONT =
size=3D2>(678)=20
417-8785 fax</FONT></P>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align=3Dleft> </P>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align=3Dleft><B>Keck =
& Wood,=20
Inc</B> now offers Introduction to ArcGIS/ArcView training classes. =
Contact me=20
for more information. <BR>Currently Scheduled Classes: <BR>Introduction =
to=20
ArcGIS I - October 25-26 in Thomasville, GA (Class is sponsored by the =
<A=20
href=3D"http://www.swgrdc.org/planning.htm">Southwest GA RDC GIS =
Dept.</A>) </P>
<P style=3D"MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" =
align=3Dleft>Introduction to ArcGIS=20
II - November 7, 9, & 10 at the <A=20
href=3D"http://shrug-gis.info/workshop05">SHRUG Workshop</A> in =
Tallahassee, FL=20
</P>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr =
align=3Dleft><FONT=20
face=3DTahoma size=3D2>-----Original Message-----<BR><B>From:</B>=20
shrug-l-admin@lists.dep.state.fl.us=20
[mailto:shrug-l-admin@lists.dep.state.fl.us] <B>On Behalf Of </B>Holli =
Brandt<BR><B>Sent:</B> Tuesday, October 18, 2005 7:50 AM<BR><B>To:</B> =
shrug-l@lists.dep.state.fl.us<BR><B>Subject:</B> shrug-l: Trimble =
ProXRS VS=20
Trimble GeoExplorer XT<BR><BR></FONT></DIV>
<DIV dir=3Dltr align=3Dleft><SPAN class=3D399192320-17102005><FONT =
face=3DArial=20
size=3D2>Good <SPAN class=3D830014911-18102005><FONT =
color=3D#0000ff><FONT=20
color=3D#000000> Morning</FONT> </FONT></SPAN> Everyone=20
-</FONT></SPAN></DIV>
<DIV><SPAN class=3D399192320-17102005><FONT face=3DArial size=3D2>Yes, =
I am still=20
plugging the forum for information even though I have moved. =
Still the=20
best source for information and opinions.</FONT></SPAN></DIV>
<DIV><SPAN class=3D399192320-17102005><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D399192320-17102005><FONT face=3DArial size=3D2>We =
are going to be=20
completing some field work in the near future and are looking =
into=20
renting a GPS Unit (trying it out before we buy). =
For sub-meter=20
accuracy, the following two units were recommended time and time =
again, the=20
Trimble ProXRS VS Trimble GeoExplorer XT. I am aware of the =
basic=20
differences between these two units, ProXRS has external antennae and=20
differential GPS and the GeoXT has internal antennae and=20
WAAS. <SPAN class=3D399192320-17102005><FONT face=3DArial =
size=3D2>I know=20
which way I am leaning but would like to hear what any of you have to =
say=20
before I commit.</FONT></SPAN></FONT></SPAN></DIV>
<DIV><SPAN class=3D399192320-17102005><FONT face=3DArial =
size=3D2><SPAN=20
class=3D399192320-17102005></SPAN></FONT></SPAN> </DIV>
<DIV><SPAN class=3D399192320-17102005><FONT face=3DArial size=3D2>Any =
personal=20
opinions or criticisms about these units? Which do you=20
suggest? Any other GPS unit you prefer?</FONT></SPAN></DIV>
<DIV><SPAN class=3D399192320-17102005><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D399192320-17102005><FONT face=3DArial=20
size=3D2></FONT></SPAN> </DIV>
<DIV><SPAN class=3D399192320-17102005><FONT face=3DArial =
size=3D2>Thanks -=20
Holli</FONT> </SPAN></DIV>
<DIV> </DIV>
<DIV align=3Dleft>
<DIV align=3Dleft><FONT face=3DPapyrus size=3D2></FONT> </DIV>
<DIV align=3Dleft><FONT face=3DPapyrus size=3D2>Holli M. =
Brandt</FONT></DIV>
<DIV align=3Dleft><FONT face=3DPapyrus size=3D2>Project =
Manager</FONT></DIV>
<DIV align=3Dleft><FONT face=3DPapyrus size=3D2>EnVetCo</FONT></DIV>
<DIV align=3Dleft><FONT face=3DPapyrus size=3D2>500 S. Independence=20
Blvd</FONT></DIV>
<DIV align=3Dleft><FONT face=3DPapyrus size=3D2>Suite 200</FONT></DIV>
<DIV align=3Dleft><FONT face=3DPapyrus size=3D2>Virginia Beach, VA=20
23452</FONT></DIV>
<DIV align=3Dleft><FONT face=3DPapyrus>(757) 518-8491</FONT></DIV>
<DIV align=3Dleft><FONT face=3DPapyrus size=3D2><A=20
title=3Dmailto:brandth@tesorocorp.com=20
=
href=3D"blocked::mailto:brandth@tesorocorp.com">brandth@tesorocorp.com</A=
></FONT></DIV></DIV>
<DIV> </DIV></BLOCKQUOTE></BODY></HTML>
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