Decatur Electronics Surface Velocity Radar SVR2-01, Руководство пользователя

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Figure 7.1
The display when the vertical (pitch-down) angle exceeds 60º
The vertical cosine angle will always be calibrated at the factory and
should never need calibration in the field . However, the vertical angle
of the SVR™ can be verified as being correct at any time . To do so
refer to the section 5 .1 .4 Display Function A – Vertical Angle Display
7.2 Horizontal Angle Compensation
Aiming the radar gun at the target at a horizontal angle greater
than 0° creates a cosine error, which results in the radar displaying
a spurious reading (Angles less than 9° impart an error of less than
1%) . To eliminate or greatly reduce this error, set the horizontal angle
compensation option to the angle that you plan to aim the radar gun
to the target . Then aim and hold the gun at this set angle during the
entire velocity measurement .
To set the horizontal angle compensation option, press the MENU
button until COS (cosine) appears in the display . Then press the
SELECT button .
Each time you press the SELECT button 00, 05, 10, 15, 20, 25, 30,
35, 40, 45, 50, 55, or 60 appears, representing the horizontal angle
degrees in which you plan to hold the gun . Select the angle by
displaying the number until the radar gun times out .