Figure 4–6: Left and Right Scan Limits

Building

Left Scan

Limit

Dome

Right Scan

Limit

Parking

Lot

Scan Types

Three types of scans may be activated: smooth scan, stepped scan, and random scan.

A smooth scan slowly pans between the left and right scan limits, starting at the left scan limit. When the right scan limit is reached, the scan reverses. Figure 4–6on page 4–18illustrates the smooth scan.

A stepped scan pans slowly pausing momentarily every 10° between the left and right scan limits. Once the right scan limit is reached, the scan reverses. Figure 4–7illustrates the stepped scan. Each arrowhead represents a 10° step in the scan.

Figure 4–7: Stepped Scan

 

Left Scan

 

Limit

Building

Dome

 

 

Right Scan

 

Limit

Parking

Lot

A random scan pans randomly between the left and right scan limits. For example, the scan may start at point in the scan, then pan right 40° and pause, pan right 10° and pause, pan left 20° and pause, and

4–18

SpeedDome Ultra VII Operator's Manual