TDS Ranger Traverse Adjustment

Looking for some help with a traverse adjustment with the TDS Ranger Survey Pro. I have a 4 point traverse run through the Data collector and want to adjust the angles.  The compass rule worked  fine, but we rather use the Angle Adjustment rule in the Data Collector.  I can not get the traverse to close using the Angle Adjustment, it keeps giving me an error of 186.81'...Which happens to be the exact distance of my first leg. I have tried to enter different angles to force the closure, but still the same error.  Has anyone done an Angle Adjustment with this software? Any hints would be great. TKS.

I've never tried this adjustment in the DC and don't have one handy to check but, considering the sum of the interior angles of a traverse is n-1*180 and your misclosure is the exact distance of your first leg I suspect the problem hs something to do with the input of either the first or the last course as the data collector apprears to be exporting a solution180+/- degrees from where it should be.

Double_Proportion:
I've never tried this adjustment in the DC and don't have one handy to check but, considering the sum of the interior angles of a traverse is n-1*180 and your misclosure is the exact distance of your first leg I suspect the problem hs something to do with the input of either the first or the last course as the data collector apprears to be exporting a solution180+/- degrees from where it should be.

Correction N-2*180.

First question, do you have 4 observed angles and 4 observed distances?

It would be even better to have 4 observed meaned angles and 8 observed distances.

I am totally unfamiliar with that software but your reported error implies it wants additional data or the existing data formatted differently.

Paul in PA

It wants the closing angle...  this would be the error if set up on the last setup closing back to (1) at the end of the loop? I think? 

Draw a ployline around all your traverse points and the closing shot where there is just the gap between 1 and the tie off... then adjust by polyline.

N-2*180 works in RPN, but not everybody has an HP.

(N-2)*180 for the less fortunate.


Paul in PA

FULL CLOSED TRAVERSE ADJUSTMENT

Lets say that you started by occupying #101 and backsighting #1.  You then traversed through points 102, 103, 104 and 105 (105 is the same point, but not the same coordinates, as 101).  Complete the angle closure by turning the 104-105-106 angle, where 106 is the same point as #1.

To determine precision in the SURVEY ADJUSTMENT-COMPASS RULE program, enter point numbers 101-105.  Then press "PRECI", but DO NOT at this point press "Solve".  Record the precision for later bragging rights on your plat certificate. 

To adjust the traverse, first exit "COMPASS RULE" and go to "COGO-INVERSE BY POINTS".  Inverse from #101 to #1 and write it down.  Inverse from #105 to #106 and write this down under the first bearing.  Subtract the two, which should give you a plus or minus of 0 to 20".  Analise your final bearing to see if it is short or long in relation to angle right.  If it is short you have a minus error.  If the second is larger than the first you have a + error.  Change the sign and you have your angle adjustment to be prorated over all of the angles
Now go to "SURVEY ADJUSTMENT - ANGLE ADJUSTMENT". This time you enter points #1, 101, 102, 103, 104, 105 and 106.  There are seven points but really only five angles, and one of these was turned twice.  At "ANGLE ERROR" enter your angle adjustment with the appropriate plus or minus (In the TDS Survey Pros that I have seen the screen prompt calls for "Angle err" but they really want the angle adjustment).
 .   Press solve.  Go back to "COGO-INVERSE BY POINTS" and inverse from 105-106.  This should now match 101-1.  (If instead the error is twice as much, you used the wrong sign in front of the angle adjustment value.  In which case go to "SURVEY ADJUSTMENT - ANGLE ADJUSTMENT", double the value, and hit solve again, this time using the opposite sign.  Check the inverse again.

Now you are ready to use the "SURVEY ADJUSTMENT-COMPASS RULE"  program by entering points #101, 102, 103, 104 and 105 and pressing solve.  Now Inverse between 105 and 101, and if you find all zeros you are fully adjusted.

This is all TDS Survey Pro on the HP 48gx.  (Why would anyone use anything else?) 

Chad, Thanks for the positive information on this subject, I hope it helps the guy who was originally in need of advice. Not particularly my issue but I'll certainly recall it when needed. Everyone gets an HP for christmas!