Boltek Lightning/2000 - Manual (Page 189)

R E A L - T I M E L I G H T N I N G D E T E C T I O N
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lightning activity, a maximum of 10 clicks per second will
sound.
Enabled
This box must be checked for any sound to play.
Default click/IC click
Use the arrows to select from click number 1 to click number
21. Each click has a slightly different sound.
This sound will be played for each stroke detected when using
the LD-250, or for the IC strokes detected when using the
StormTracker.
CG click
This sound will be played for each CG stroke that is detected.
This option is only available when using the StormTracker
hardware.
Test button
Press the Test button to hear what the selected click sounds
like.