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Target Indicator Joysck Arrows
When setting the pulse duration in degrees, what you set is what you
get. Refer to the image on the right for the difference between a 1°
and 5° (of rotation) flash duration.
There are two methods of adjusng the flash pulse width and hence
the brightness and consequently the blur. For seEng
Brightness
see section 5.3.
6.2
Brightness in Degrees of Rotaon
Brightness can be set from 0.2 to 14 degrees out of 360. The higher
the seEng the brighter the strobe appears to be but the more
blurred the target is. Opmal seEng to stop moon is 1.8 to 3.6°.
The number of degrees is a proporonal amount and remains
constant as the flash rate increases or decreases. The strobe
automacally calculates how wide the pulse width should be at
different flash rates to keep the blur constant—the faster the flash
rate the narrower the pulse width. The pulse width equals: (seEng
in degrees/360) x (1/flashrate in Hz).
6.3
Brightness in Pulse Duraon
Brightness can also be set to a fixed duraon pulse in milliseconds.
The flash rate remains constant irrespecve of the flash rate, thus as
the flash rate increases, the image will get brighter and more blurred.
Note: There are two limits maintained by the strobe – the flash
pulse width can never be greater than 2.0 msec (milliseconds) nor
can it exceed 14° of rotaon.
The strobe automacally adjusts the pulse width and rotaon values as
the flash rate is increased or decreased to maintain the limits at all
mes. For example
—a flash rate of 600 flashes per minute (10 Hz), 14°
of rotaon represents a flash pulse width of 3.8 msec. The strobe will
limit this value to 2.0 msec or 7.3° of rotaon (blur).
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