12
If you know the angle at which you are clocking, you can manually calculate
the actual speed by taking the radar reading and dividing by the cosine of the
angle.
For example: if you are clocking at 30 degrees, and the gun displays 80 mph,
take 80 and divide by the cosine of 30 degrees (0.866) to get a true speed of
92 mph.
NOTE:
You can configure the JUGS Pro-Sports radar to automatically adjust
for angle error by changing the Cosine Angle setting in the Option MENU. In
the above example, if the Cosine Angle setting is 30, the gun will display 92
MPH, and no manual calculations are necessary.
Calculating Angle Errors
Cosine Angle-Error Chart
0
Degrees
5
Degrees
10
Degrees
15
Degrees
30
Degrees
45
Degrees
90
Degrees
0%
Error
0.4%
Error
1.5%
Error
3.4%
Error
13.4%
Error
29.3%
Error
100%
Error
25.0
mph
24.9
mph
24.6
mph
24.1
mph
21.7
mph
17.7
mph
0
mph
50.0
mph
49.8
mph
49.2
mph
48.3
mph
43.3
mph
35.4
mph
0
mph
75.0
mph
74.7
mph
73.9
mph
72.4
mph
65.0
mph
53.0
mph
0
mph
100.0
mph
99.6
mph
98.5
mph
96.6
mph
86.6
mph
70.7
mph
0
mph
125.0
mph
124.5
mph
123.1
mph
120.7
mph
108.3
mph
88.4
mph
0
mph
150.0
mph
149.4
mph
147.7
mph
144.9
mph
129.9
mph
106.1
mph
0
mph
200.0
mph
199.2
mph
197.0
mph
193.2
mph
173.2
mph
141.4
mph
0
mph
250.0
mph
249.0
mph
246.2
mph
241.4
mph
216.5
mph
176.8
mph
0
mph
True
Speed
25.0
mph
50.0
mph
75.0
mph
100.0
mph
125.0
mph
150.0
mph
200.0
mph
250.0
mph
