Kevin D. Allen
  • Nashville, Indiana
  • United States
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Kevin D. Allen replied to Carl Strydom's discussion GPS Wobbly Breaklines - has anybody encountered this?
"Well, it looks to me like to have a classic example of a "Random Error" phenomenon, more commonly referred to in polite terms as "AAAAWWW   WELL.... CRAP!!!!..." "
Jan 16
Kevin D. Allen replied to Carl Strydom's discussion GPS Wobbly Breaklines - has anybody encountered this?
"Well, first is did you loose lock and record a point with a high RMS error. Second, how far out of plum are you holding the rod? A careless rodman can "wave" a GPS head a couple tenths either way on a 6 or 8 foot pole. Third, are you…"
Jan 8
Kevin D. Allen replied to Malik's discussion Surface pro
"Well, Your post said "use it with autocad in field" ???  Also, Autocad and all its associated modules, 3D Civil in particular, are hardware power hungry.  The 8 gig ram is bare bones minimum as well as the graphics.  If you…"
Jan 7
Kevin D. Allen replied to Malik's discussion Surface pro
"Nope... I would not take a Surface Pro into an outdoor environment... period.  And I talking about a real-world rain, dirt, dust, humid environment, not a couple hours in the hammock and shade environment. If you want something like a tablet…"
Jan 6
Kevin D. Allen replied to Alyssa Fournier's discussion As- built pipeline surveying
"Hi Alyssa, As someone that has been there and done exactly that, I'll say a few things... 1) Yup - heavy construction surveying work and certainly pipeline survey work IS hard and dangerous.. 2) Wimpy people need not apply for this type of…"
Jan 3
Kevin D. Allen replied to Garth McNally's discussion Deed Description - Check Lot - Maine
"You need to provide more information or clarify your request better.  Are you questioning why "Check Lot 7" is of a differing size?   Or why they are called "Check Lot" in general?  As the the payment of…"
Dec 27, 2018
Kevin D. Allen replied to Bill Osborne's discussion OPUS collection interval error
"Bill, I think you got it... At some point you have to stop "chasing the bubble" as we call it.  If these two points were property corners on a current ALTA survey, both would be valid with your raw data, let alone adjusted and…"
Nov 20, 2018
Kevin D. Allen replied to Bill Osborne's discussion OPUS collection interval error
"Bill, Just putting this out here, did you adjust your optical distance for your scale factor?  Since the two OPUS points are so close ( 350 feet and not 3500 feet) I'd pick the scale factor from the point with better results. Also, if you…"
Nov 20, 2018
Kevin D. Allen replied to Εδουάρδος Πολίτης's discussion x-tilt-sensor Total Station
"Take it back to the shop.  They may not have tightened a set screw or the like.  Also, if happened suddenly it could be the result of the instrument be struck or shocked.  Are you the only person that uses this instrument?  Any…"
Nov 16, 2018
Kevin D. Allen replied to Εδουάρδος Πολίτης's discussion x-tilt-sensor Total Station
"Hi, My first question is when was the last time this total station was calibrated in the shop?  It is quite that your x-tilt sensor is out of alignment with your main instrument level.  This would result in your x-tilt being right at its…"
Nov 15, 2018
Kevin D. Allen replied to Al Spani's discussion Topcon Hiper + will only track 2 satellites
"Hi Al, I also have/had old Ashtech/Sokkia receivers from 1998, some of the first dual freq units out there.  8 or 9 years ago they also quit getting more than two or three sats.  I was told by tech support that the firmware was going out…"
Nov 15, 2018
Kevin D. Allen replied to Bill Osborne's discussion OPUS collection interval error
"Good deal!!"
Nov 12, 2018
Kevin D. Allen replied to JEROME LORD's discussion Trimble TSCE Data collector, trouble connecting to a computer to download data. in the group Trimble Support Group
"Ummm..  You might want to dust off the old Compaq 386e with Windows 3.1 desktop while you are at it...."
Nov 9, 2018
Kevin D. Allen joined Jaybird's group
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Trimble Support Group

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Nov 9, 2018
Kevin D. Allen replied to Bill Osborne's discussion OPUS collection interval error
"Bill, My Bad, I missed the "one out of five" part.  I'd suggest the you look for obstructions that might be interfering with this point.  Also, if its an important point, try running a 30 minute session.  While I have…"
Nov 2, 2018
Kevin D. Allen replied to Bill Osborne's discussion OPUS collection interval error
"Bill, The OPUS service will only process sessions with the prescribed recording interval.  Imagine if you where trying to use a base/rover setup with the base set a 5 second update and the rover at a 12 second update.  They would only…"
Nov 2, 2018

Profile Information

I am here because I am a.
Just a surveyor
Surveyor Bio:
Getting back into the business after a 3 year break
Company
Allen Consulting Services
Location for Member Map
Indiana, USA
Licenses Certifications or Awards
none
I have experience with the following
GPS, topographic, boundary surveys, topographic surveys, control network surveys, Construction
How many years have you been surveying?
Active in the Surveying and Engineering files for 30 years
Most comfortable with the following types of instrumentation
Total Stations, GPS, Surveying Software, Robotics, Automatic Levels, GNSS, Old school surveying, theodolite, Chain, compass

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