PD-20001-R1
Stagetracker II User Manual
19
Figure 20 Usable area seen from stage left
Considering the two figures above, and taking the position of the RE to be
(𝑥
𝑐
, 𝑦
𝑐
, 𝑧
𝑐
)
we can calculate the usable area for
different cases.
6.3
Coverage in x-axis
Refer to Figure 21 Calculating the usable area. If we vary the mounting angle
α
and the RE height we get the following
matrix of usable area (along the x-axis) given in Table 1. The opening angle is set to 50 degrees in these calculations. For
angles above 40 degrees we will cover the entire stage to the right of the RE. This would be the optimal angle if we can
position the RE freely. There are often other limitations to the positions that we can use. See Table 2
for usable area “to the
left” of the RE.
Figure 21 Calculating the usable area
The following equations apply:
∆𝑥
1
= ℎ
𝑒𝑓𝑓
∙ tan(𝜃 − 𝛼)
∆𝑥
2
= ℎ
𝑒𝑓𝑓
∙ tan(𝜃 + 𝛼)
