Leupold RX-2800 TBR/W Complete Operating Instructions page 19

TRIG, a function that is included to support anyone interested in
distances to objects, and displays the true horizontal range and
true vertical range, which is based upon trigonometry using angle
YD
LOS
and line of sight distance . Line of sight distance (300 .0 yards)
readings will be displayed in the lower portion of the display . The
upper display will briefly show the true horizontal distance (254 .4)
then the absolute value of the true vertical distance (146 .9) . Have
you ever wondered if that leaning tree would hit your home or
tent if it fell? Measure the height by obtaining the true vertical
distance and then measure the distance from your house or tent to
LOS
the tree and you will know . This horizontal distance is the method 8 1 :
competitors use when describing their ballistic solution . It is a
good approximation for distances out to 400 yards and angles less
than 30 degrees .
8 1 :
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