Humminbird HELIX 5 SERIES Operation Manual page 116

Xtreme Depth models (HELIX XD GPS) allow you to choose 200/50 kHz, 200 kHz, or 50 kHz
(Default = 200/50 kHz).
• When set to 200/50 kHz, the returns from both beams are blended by starting with the
50 kHz wide beam return, dimming it, and then overlaying it with the 200 kHz narrow
beam return. The darker 200 kHz narrow beam sonar returns will stand out from the paler
50 kHz wide beam sonar returns. The Split Sonar View continues to display the sonar
returns from each beam in their respective windows. The blended information is shown
in the Sonar View, Sonar Zoom View, and the Big Digits View. The RTS Window in the
Sonar View and Circular Flasher View will only show the returns from the 200 kHz narrow
beam.
• When set to 200 kHz, only the returns from the 200 kHz narrow beam will be displayed
in the Sonar View, Sonar Zoom View, Big Digits View, and the Circular Flasher View. The
Split Sonar View will continue to display returns from both beams in their respective
windows. The RTS Window in the Sonar View will display the returns from the 200 kHz
narrow beam.
• When set to 50 kHz, the returns from the 50 kHz wide beam will be displayed in the Sonar
View, Sonar Zoom View, Big Digits View, and the Circular Flasher View. The Split Sonar
View will continue to display returns from both beams in their respective windows. The
RTS Window will display the returns from the 50 kHz wide beam.
Imaging Frequency allows you to select which frequency to apply to the Down Imaging beams
(455 kHz or 800 kHz). For the best overall image quality and depth, select 455 kHz. For the sharpest
image (but limited depth capability), select 800 kHz.
Sonar Menu Tab
Imaging Frequency
(HELIX DI GPS only)
Settings: 800 kHz, 455 kHz; Default = 455 kHz
Down Imaging Beams
45°
455kHz
16°
455kHz
28°
200kHz
110
800kHz
75°