Spectra Precision Survey Pro CE v3.6 User Manual - Manual (Page 118)

User’s Manual
112
9. Enter the correct hours to GMT in the Hrs To
GMT field, aim toward the backsight and tap
7DNH 6KRW to record the horizontal angle to
the backsight. (The azimuth to this point
will be computed at the end of the routine.)
Note: The hours to GMT will be between -5 and -
8 when in the continental United States.
10. WITH A SOLAR FILTER INSTALLED,
aim ahead of the path of the sun so that the trailing edge has not
yet contacted the vertical crosshair in the scope and tap
7DNH 6KRW to record the current horizontal angle.
11. Watch the movement of the sun in the scope. As soon as the
trailing edge of the sun contacts the vertical crosshair, either
tap the
*HW /RFDO 7LPH button or use an external timepiece
and note the precise time. (When using an external
timepiece, manually key in the noted time in the
HH, MM,
SS, sss fields.)
12. Tap
2. to continue. You will return to the
Solar Observation screen and the computed
azimuth for each shot taken is displayed with
other shot information.
Note: You can delete and re-shoot the last shot
taken by selecting it and tapping the
'HO button.
This is useful if the last shot was in error.
13. If additional shots are remaining, the next
required shot will be selected. Tap
6KRRW to
access the Enter Shot Data screen to take the next shot.
14. Repeat Steps 10 through 12 until all forward and reverse shots
have been performed.
15. After completing all shots, you can scan down the list and view
the computed azimuth for each one. If any of the azimuths
appear incorrect, you can have those shots excluded from the
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