583794
49
Zoom out
Zoom in
Previous page
1/134
Next page
39
Reference
Sonar Tab Options
,
Water Type — since sound waves travel through ‘Fresh’ and ‘Salt’ water at different rates it is
necessary to select the ‘Water Type’ to ensure accurate readings on the unit.
Depth Number — controls the effi ciency of the digital depth update rate.’Fast Update’ will update
more quickly and is recommended for low-noise, deeper water (>50 ft.). ‘Auto’ is best for shallow
water or high noise areas, will have a slower screen update and is best used if you travel a wide
variety of depths.
If the unit is unable to track the bottom for any reason, the digits in the depth window
will fl ash on and off to alert you that the unit is not tracking the bottom.
Scale — controls the depth ‘Scale’ displayed vertically along the right side of the graph. The depth
‘Scale’ can be confi gured to display four different ways: as an ‘Overlay’, in the ‘Corners’, with ‘Basic’
or ‘No Scale’.
Color Bar — shows a gradient scale of the current Target Level setting (see page 35).
Flasher — with the ‘Flasher’ active, a graphic Flasher representation will be displayed on the far
right side of the graph. This graphic Flasher displays structure and bottom returns much the same
as a true Flasher. You may fi nd this feature particularly useful when using ‘Fish Symbols’.
Keel Offset — used to offset the surface reading for the depth of a keel. This makes it possible to
measure depth from the bottom of your keel instead of from the transducer’s location. Enter a posi-
tive number to offset for a keel, or enter a negative number to compensate for a large vessel that
may draw several feet of water. The ‘Keel Offset’ will be refl ected in the depth reading.
Map Split Sonar Detail — controls Map Page sonar split range scale. ‘Full Range’ will show
entire scale of 2X or 4X left side split of Sonar Page. ‘Maximum Detail’ displays what is shown on
the left side of a split sonar screen.
Background Color — (GPSMAP 188C only) sets the background color on the Sonar Page to
Black, Blue or White.
Main Menu—Sonar Tab
(GPSMAP 188C shown)
Depth Scale (Overlay)
Color Bar
Flasher
188188C238 Manual Part 1.indd 39 6/30/2003, 3:34:48 PM
49


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Garmin GpSMAP 188 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Garmin GpSMAP 188 in the language / languages: English as an attachment in your email.

The manual is 2,04 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info