If you select GARMIN DGPS or RTCM In/NMEA Out format, you
can control a differential beacon receiver directly from your 276C
Plus using the COM tab. You can have the unit automatically scan
for the DGPS beacon signal, or you can enter the beacon frequency
and bit rate on the unit, and the information will be used to tune the
beacon receiver. If you use a DGPS receiver, WAAS capability is
automatically turned off.
To have the unit automatically scan for a frequency:
1. Set the unit to GARMIN DGPS or RTCM In/NMEA Out.
2. Highlight the
Beacon
field and press
ENTER
.
3. Highlight
Scan
and press
ENTER
. The numbers in the
Frequency
field change as the unit scans from 284 kHz to
325 kHz, 200 bit rate, then 100, at 6-second intervals.
COM 1 tab of the Setup tab with GARMIN DGPS selected
Highlight
Scan
and press
ENTER
.
Displays the
status of the
scan
The Status field displays one of the following:
•
Tuning
—the unit is attempting to tune to the specified
frequency and bit rate.
•
Scanning
—the unit is automatically scanning through the
frequencies and bit rates.
•
Receiving
—the unit is receiving DGPS signal and ready for
operation.
•
Check Wiring
—the unit is not making connection with the
DGPS receiver.
To restart the scan:
1. Press
MENU
.
2. Highlight
Restart Scan
and press
ENTER
.
To manually enter a frequency and bit rate:
1. With the unit set to
GARMIN DGPS
or
RTCM In/NMEA Out
,
use the
Rocker
key 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.
92
276C Plus Owner’s Manual
C
USTOMIZING
Y
OUR
276C P
LUS
>
C
HANGING
THE
D
ATA
F
ORMAT
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1/13/2005 10:43:59 AM