TM 5-6675-250-10
2-7. OPERATING PROCEDURE - Continued
ALIGNMENT OF THEODOLITE HORIZONTAL CIRCLE TO REFERENCE MIRROR - Continued
n.
To obtain mirror reading:
(1) Add 3200.00 to the reverse reading.
(2) Add the direct and reverse readings.
(3) Divide the sum of step (2) by two to
obtain the mean mirror reading.
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