Humminbird HELIX Series Operation Manual page 65

Set the Upper/Lower Range
Upper Range and Lower Range control how much of the water column is displayed on the view. For example, if you are only
interested in the area between 20 and 50 feet deep, set the Upper Range to 20 and the Lower Range to 50. The view will not display
sonar returns outside of the set ranges, and greater detail for the selected range will be displayed.
1. Sonar X-Press Menu (Custom User Mode): With a Sonar View displayed on-screen, press the MENU key once.
2. Select Upper Range. Press the RIGHT or LEFT Cursor keys to adjust the setting.
3. Select Lower Range. Select Auto or set a specific depth (manual).
Auto: The Lower Range will be adjusted by the control head to follow the bottom automatically.
Manual: The control head locks onto the depth you select.
NOTE: There must be a difference of 10 feet between the upper and lower range settings.
Change the Chart Speed
Chart Speed controls how fast the sonar history moves across the view and how much detail is shown. A faster speed is preferred
by most anglers, and the sonar history moves quickly across the view. To slow down the sonar history display, select a lower setting.
Regardless of the Chart Speed setting, the RTS Window will update at the maximum rate possible for depth conditions.
1. Sonar X-Press Menu: With a Sonar View displayed on-screen, press the MENU key once.
2. Select Chart Speed.
3. Press the RIGHT or LEFT Cursor keys to adjust the setting.
Turn on/off Jigging Mode
If you have a CHIRP SI, CHIRP MEGA SI or CHIRP MEGA SI+ model and a Dual Beam SI transducer, you can use Jigging Mode to refine
the sonar returns shown in the Sonar View.
NOTE: This feature is only available when a Dual Beam SI transducer is connected. Jigging Mode is not needed with High Wide
Dual Spectrum CHIRP transducers.
1. Sonar X-Press Menu: With a Sonar View displayed on-screen, press the MENU key once.
2. Select Jigging Mode.
3. Select On or Off.
On
Off
(CHIRP SI, CHIRP MEGA SI, CHIRP MEGA SI+ models only)
Turn on Jigging Mode if you've selected Medium or Medium/High Frequency in the 2D CHIRP
Display Frequency menu (with 2D CHIRP Mode turned on), or if you've selected 83 kHz or 83/200
kHz in the 2D Display Frequency menu (with 2D CHIRP Mode turned off). When Jigging Mode is
turned on, the sonar returns are refined on the view, and the chart speed slows down to show
more detail.
Turn off Jigging Mode if you've selected Low Frequency in the 2D CHIRP Display Frequency
menu (with 2D CHIRP Mode turned on), or if you've selected 200 kHz in the 2D Display
Frequency menu (with 2D CHIRP Mode turned off). Turn off Jigging Mode to display the sonar
history at the selected chart speed and see coarser returns on the display.
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Sonar (2D)