Using the echo 100 and echo 150
Setting the Battery Voltage Alarm
You can set an alarm to sound when the battery reaches a specified low voltage.
1.From the Sonar screen, select MENU > Setup > Alarms > Battery > On.
2.Select the low battery voltage that triggers the alarm.
The alarm setting appears on the Alarms screen.
Setting Fish Alarms
You can set an alarm to sound when the device detects a suspended target. From the Sonar screen, select MENU > Setup > Alarms > Fish > On.
Setting the Sonar Scroll Speed
You can set the rate at which the sonar scrolls from right to left.
Use a higher scroll speed to see more detail, especially while moving or trolling. Use a lower scroll speed to display the sonar information on the screen longer.
1.From the Sonar screen, select MENU > Setup > Sonar > Scroll.
2.Select a scroll speed.
Selecting a Frequency for the echo 150
When using a dual frequency transducer, you can select a frequency for the echo 150 Sonar screen when using a dual frequency transducer.
Note: The echo 100 operates only at 200 kHz.
You can show data from a 200 kHz sonar signal or data from a 77 kHz sonar signal. The 200 kHz frequency shows better detail, has a narrower beam, and is typically used in shallower waters. The 77 kHz frequency penetrates deep water more effectively and has a wider beam, so it can be used to cover a larger area.
1.From the Sonar screen, select MENU > Setup > Sonar > Frequency.
2.Select a frequency.
Configuring the Appearance of Suspended Targets
You can set how the sonar interprets suspended targets.
1.From the Sonar screen, select MENU > Setup > Sonar > Fish ID.
2.Select an option:
•To show suspended targets as symbols, select 
.
•To show suspended targets as symbols with target depth information,
select .
• To show suspended targets as symbols with background sonar
information, select | . |
•To show suspended targets as symbols with background sonar information and target depth information, Select 
.
6 | echo 100 and echo 150 Owner’s Manual |