Honeywell KMD-150 Pilot's Manual page 132

Stormscope Operation
When the Stormscope range is changed to 100 nm (Figure 13-6), only
cluster 2 remains visible. Clusters 1 and 3 are beyond the 100 nm range
and therefore no longer appear on the screen. (Clusters 1 and 3 would
again be visible if the range were returned to 200 nm.) Cluster 2 is now
more defined and the discharge points are larger. The interpretation of
cluster 2 remains the same: a moderately active thunderstorm at azimuth
4:00, range 75 nm. You'll notice on the right-hand Stormscope screen
(strike display mode) that there is less radial spread than there was in
the 200 nm range. It is true in general that radial spread is reduced on
the shorter ranges.
Figure 13-6 - Range Changed to 100 nm
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Rev 1 Mar/2000
KMD 150 Pilot's Guide