583796
99
Zoom out
Zoom in
Previous page
1/134
Next page
89
Reference
Main Menu: Comm Tab
The “Status” fi eld will show one of the following:
Tuning – unit is attempting to tune to the specifi ed frequency and bit rate.
Scanning – unit is automatically scanning through the frequencies and bit rates.
Receiving – unit is receiving DGPS signal and ready for operation.
Check Wiring – unit is not making connection with DGPS receiver.
When the unit is receiving a DGPS signal, the “SNR” (Signal to Noise Ratio) and “Distance” fi elds
will show data. The SNR range is 0dB to 30dB, with 30 being the best. The Distance may or may not
show data, depending upon the signal being broadcast from the DGPS site.
The DGPS beacon transmitters are operated by the U.S. Coast Guard (or similar government
agency in other countries), which is responsible for their accuracy and maintenance. For DGPS trans-
mitter problems or to fi nd the most updated list of frequencies and coverage areas, contact your local
USCG, or see their web site at http://www.navcen.uscg.mil/.
NMEA Interface
If you are going to interface the GPSMAP 188/188C/238 Sounder with another piece of equipment
(such as a radio or autopilot), the unit needs to be set to output NMEA data. More information on
wiring and NMEA data may be found on page 95.
To activate the NMEA data:
1. On either port of the Comm Tab, highlight the ‘Serial Data Format’ fi eld and press ENTER.
2. Select ‘NMEA In/NMEA Out’ and press ENTER.
Activating NMEA data
188188C238 Manual Part 2.indd 89 6/30/2003, 3:32:34 PM
99


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 238 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 238 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