III-131
(1) FEED SPEED
FEED SPEED, either a rough or fine picture can be selected.
1/3: 3-line scrolls per ping.
1/2: 2-line scrolls per ping
1: 1-line scroll per ping
2: 1-line drawing per 2 pings.
3: 1-line drawing per 3 pings.
Fig. 3-20 Echograms when the feed speed is changed
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