Lowrance electronic LMS-334c iGPS - Manual (Page 83)

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When using HyperScroll, you may also need to manually decrease the
sensitivity for optimum performance. Depending on water depth and
other conditions, HyperScroll may cause a second bottom echo to return
to the transducer during the next ping cycle, or sounding. This can result
in a large amount of clutter appearing on the screen. If this occurs, just
decrease the sensitivity to a level that eliminates the clutter. When you
turn HyperScroll off, you can return to your original sensitivity level.
Sonar Menu with Ping Speed command selected (left).
Ping Speed Control Bar at default setting (right).
To change Ping Speed:
1. From the Sonar Page, press MENU |
↓ to
P
ING
S
PEED
| ENT .
2. The Ping Speed Control Bar appears. Press
↑ ↓
to adjust Ping Speed.
When it's set at the desired level, press EXIT .
To turn off HyperScroll:
1. From the Sonar Page, press MENU |
↓ to
P ING S PEED
| ENT .
2. The Ping Speed Control Bar appears. Press
↓ to decrease ping speed
to 50 percent. To reactivate Hyperscroll use
↑ to increase ping speed to
greater than 50 percent. When it's set at the desired level, press EXIT .
When you boost ping speed and switch into HyperScroll, the width of
the FasTrack bar graph display doubles in width at the right side of the
screen. This allows you to better see the virtually instantaneous sonar
returns, just as you would on a flasher sonar unit. For more informa-
tion on FasTrack, see its entry in this section.
To adjust Sensitivity:
1. From the Sonar Page, press MENU | ENT .
2. The Sensitivity Control Bar appears. Press
↓ ↑ to adjust sensitivity.
When it's set at the desired level, press EXIT .