Garmin GPSMAP 496 Owner's Manual (for North America) - Page 132

To access the Advanced NMEA Output Setup, The Advanced NMEA Output Setup allows you to set

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Main Menu > Setup Tab To manually enter a frequency and bit rate: 1. With the unit set to GARMIN DGPS or RTCM In/NMEA Out, use the ROCKER to highlight the Beacon field, and press Enter. 2. Highlight User, and press Enter. 3. Highlight the Frequency or Bit Rate field, press Enter, and enter a frequency or bit rate. Press Enter when done. When the unit is receiving a DGPS signal, the SNR (Signal to Noise Ratio) and Distance fields show data. The SNR range is 0 dB to 30 dB, with 30 being the best. The Distance may or may not show data, based on the signal being broadcast from the DGPS site. The DGPS beacon transmitters are operated by the United States Coast Guard (or similar government agency in other countries), which is responsible for their accuracy and maintenance. For DGPS transmitter problems or to find the most updated list of frequencies and coverage areas, contact your local USCG or see their Web site (www.navcen.uscg.mil). sentences at 1-second intervals. To access the Advanced NMEA Output Setup: 1. Press Menu twice to open the Main Menu. 2. Use the ROCKER to select Setup from the vertical tab list. 3. Select Interface from the row of tabs along the top. 4. Highlight the field below Serial Data Format. Press Enter. 5. Select NMEA In/NMEA Out. Press Enter. 6. Press Menu to open the options menu. Select Advanced NMEA Setup, and press Enter. Advanced NMEA Output Setup If you are going to interface the GPSMAP 496 with another piece of equipment (such as a radar or autopilot), the unit needs to be set to output NMEA data. The NMEA data transmission can be customized to keep the output rate at two seconds. If too many NMEA sentences are selected the unit can take longer than two seconds to update. You can also set the rate to Fast to output a minimum number of NMEA 124 Advanced NMEA Output Setup The Advanced NMEA Output Setup Page allows you to set the output rate, change the precision of the Lat/Lon minutes, set Waypoint IDs to names or numbers, as well as turn on and off the GPS status, the GARMIN Proprietary sentences, and Waypoint/ Route (WPL, RTE). GPSMAP 496 Owner's Manual

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²24
GPSMAP 496 Owner’s Manual
Main Menu >
Setup Tab
To manually enter a frequency and bit rate:
1. With the unit set to
GARMIN DGPS
or
RTCM In/NMEA Out
, use
the
ROCKER
to highlight the
Beacon
field, and press
ENTER
.
2. Highlight
User
, and press
ENTER
.
3. Highlight the
Frequency
or
Bit Rate
field, press
ENTER
,
and
enter a frequency or bit rate. Press
ENTER
when done.
When the unit is receiving a DGPS signal, the SNR (Signal to Noise
Ratio) and Distance fields show data. The SNR range is 0 dB to 30
dB, with 30 being the best. The Distance may or may not show data,
based on the signal being broadcast from the DGPS site.
The DGPS beacon transmitters are operated by the United States
Coast Guard (or similar government agency in other countries),
which is responsible for their accuracy and maintenance. For DGPS
transmitter problems or to find the most updated list of frequencies
and coverage areas, contact your local USCG or see their Web site
(
www.navcen.uscg.mil)
.
Advanced NMEA Output Setup
If you are going to interface the GPSMAP 496 with another piece of
equipment (such as a radar or autopilot), the unit needs to be set to
output NMEA data. The NMEA data transmission can be customized
to keep the output rate at two seconds. If too many NMEA sentences
are selected the unit can take longer than two seconds to update. You
can also set the rate to
Fast
to output a minimum number of NMEA
sentences at 1-second intervals.
To access the Advanced NMEA Output Setup:
1. Press
MENU
twice to open the Main Menu.
2. Use the
ROCKER
to select
Setup
from the vertical tab list.
3. Select
Interface
from the row of tabs along the top.
4. Highlight the field below
Serial Data Format
. Press
ENTER
.
5. Select
NMEA In/NMEA Out
. Press
ENTER
.
6. Press
MENU
to open the options menu. Select
Advanced NMEA
Setup
, and press
ENTER
.
Advanced NMEA Output Setup
The Advanced NMEA Output Setup Page allows you to set the
output rate, change the precision of the Lat/Lon minutes, set
Waypoint IDs to names or numbers, as well as turn on and off the
GPS status, the GARMIN Proprietary sentences, and Waypoint/
Route (WPL, RTE).