I shot the angles for the RMYoung sonics. I used a combination of a compass and the theodolite.
 The compass was set with 0 degree deviation. When we get the new datascope I will take another set of readings.

The sonics were mounted with the N direction pointing toward the East.

Height

9/1 (SS)

10/25 (KY and GM)  
10m8176.5  
25m

82

76.5 (leans toward South)  
33m7876  
41.8m7879  
49m8178  

 

10/25/2016 - We found the compass on the Theolite was no good, based on comparisons with the binoculars. We used the Theolite to align the sonic and then used the binoculars to measure the angels.