Furuno CH-500, Operator'S Manual

Page: 81 / 109

5. MENU OPERATIONS
5-11
5.12 How to Adjust the Speaker Settings
The optional speaker is available for use with your CH-500/CH-600. By connecting a
speaker, you can “hear” fish echoes, which allows you to move about your ship freely
while fishing.
You can change the following settings for the speaker: output frequency, output band-
width, harmonic pattern and doppler shift filter.
In most cases, these settings are done during the first voyage after installation, and
require almost no adjustment once set.
5.12.1 How to adjust the speaker frequency
To adjust the output frequency for the speaker, do the following:
1. Referring to section 5.5, open the [System] menu.
2. Press
T
or
S
to select [Audio], then press
X
. The [Audio] settings window ap-
pears.
3. [Audio FREQ.] is already selected. Press
X
or
W
to show adjust the frequency.
The available range is 0.90 kHz to 1.20 kHz.
4. Press the MENU key twice to close the menu.
5.12.2 How to select the speaker bandwidth
You can customize the sound bandwidth to suit your preferences.
To set the output bandwidth, do the following:
1. Referring to section 5.5, open the [System] menu.
2. Press
T
or
S
to select [Audio], then press
X
. The [Audio] settings window ap-
pears.
3. Press
S
or
T
to select [Bandwidth].
4. Press
X
or
W
to select the required bandwidth. The available options are:
• [Wide]: Sound output is based on a wide bandwidth. Auto Filter settings are
more effective with this setting.
• [Std.]: Default setting. Sound output is based on a normal bandwidth. Auto Filter
settings are effective with this setting.
• [Narrow]: Sound output is based on a narrow bandwidth. Auto Filter settings
have low effect with this setting.
5. Press the MENU key twice to close the menu.
Audio
1. 0 0 k H z Audio FREQ. :
Bandwidth Wide Std.
On
(1 ~ 3)
Narrow
Off
1 Harmonic Pattern
:
:
Auto Filter :
(0.90~1.20 kHz)
: Change Menu: Apply : Select
Low FREQ
High FREQ Audio Priority : For CH-600 only For CH-600 only