There is a common exception to these rules of thumb. Some fishermen on freshwater lakes (or the ocean) using downriggers like to see them on the sonar. In many of those cases, you'll see a 50 kHz transducer frequency in use because the wider cone angle lets them watch the bait.
Sonar Features menu with a frequency of 200 kHz selected.
To change the frequency setting to 50 kHz:
1.From the Sonar Page, press MENU↓ to SONAR FEATURESENT.
2.Press → ↓ to 50 KHZENT.
3.Press EXITEXIT to clear the menu.
To change the frequency setting to 200 kHz:
1.From the Sonar Page, press MENU↓ to SONAR FEATURESENT.
2.Press→ ↓ to 200 KHZENT.
3.Press EXITEXIT to clear the menu.
HyperScroll
See the entry on Ping Speed, which controls the HyperScroll feature.
Log Sonar Chart Data
If you have an MMC installed in the unit, the sonar data shown on the screen can be saved to it. This can be played back at any time. (To play a recorded sonar chart log, see the entry in this section for Sonar Simulator.) If you have a personal computer and internet access, download our free Sonar Viewer and your unit’s emulator at our web site, www.lowrance.com. That will allow you to replay sonar logs on your personal computer.
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