Boltek Lightning/2000 - Manual (Page 168)

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factors will affect how strokes are drawn in the Real-time
lightning window.
Note: The range of the special “nearby flashes” will not be
affected by changes made in the Range Scaling Dialog. These
flashes’ ranges are calculated by a special method and are
known to be relatively nearby. Since the special circular
nearby storm’s range is calculated using only “nearby flashes”,
its range will also not be affected by changes made in this
dialog.
For certain users, particularly those with higher antenna
placements than normal (> 10m or 30 ft.), the squelch setting
may need to be altered in conjunction with the range scaling
to produce good results.
You can set a range scale for up to 4 distinct sectors. By
default, sector 1 is defined as 0 to 360 degrees. In other
words, it will apply to all strokes plotted in any direction of
the compass.
Users with an ocean nearby typically use range scaling to
move storms detected in the direction of the ocean so that
they are plotted further away. This is because when we detect
lightning from distant storms over a large body of water, they
will usually appear to be closer than they actually are.
You can change how a sector is defined by changing the start
bearing or the end bearing (or both) that define that sector.
When you change the first sector to include less than the
entire circle (say by defining it to extend from 0 to 180
degrees instead of from 0 to 360 degrees), the tab for the
second sector’s range scale will become visible. The tabs for
the third and fourth sectors will become visible only when the
sectors preceding them don’t encompass the entire circle
from 0 to 360 degrees.
The second sector must start at the point where the first
sector stops; the third sector must start at the point where the
second sector stops; and the fourth sector will always