7-19
7 Technical Specifications
Signal Level Depending on Surface and Stand-off Distance
Figure 7.3: Typical signal level range depending on the stand-off distance measured on a diffuse white surface
and 3M Scotchliteâ„¢ Tape (retro-reflective film)
Table of the Visibility Maxima
Diffuse white
surface
SIGNAL level
Stand-off distance [m]
Internal signal [dBm]
0.1
Retro-reflective
film
1
-50
-20
-30
-40
-10
10
20
Visibility maxima (mm) for l = 204mm
141 345 549 753 957 1161
1365 1569 1773 1977 2181 2385
2589 2793 2997 3201 3405 3609
3813 4017 4221 4425 4629 4833
5037 Add 204 mm for every additional visibility maximum.