Raymarine Raynav 300 GPS Plotter, Owner'S Handbook Manual

Page: 91 / 136

Chapter 4: Setting Up the GPS Plotter 4-13
➤
To select the required Fix Mode:
1. Press the
FIX MODE
soft key repeatedly to cycle through the available
modes.
i. Select
GPS
to calculate a fix using GPS data only.
ii. Select
D
to calculate a fix using Differential GPS data from an
external RTCM beacon receiver.
iii. Select
SD
to calculate a fix using Satellite Differential data, if
available.
2. Press
CLEAR
to exit.
D-GPS Set Up
The
D-GPS SET UP
function is only available when a Differential GPS
receiver is connected and the unit is set as a GPS Source repeater (see
GPS Source on page 4-8 ). It provides the ability to set up an external
Differential GPS, either automatically (default) or by manually
retuning it to a different differential beacon.
Note:
If the display unit is receiving RTCM data via the NMEA input
port, repeating a differential fix from another unit, the
D-GPS SET UP
soft
key is grayed out. If receiving RTCM data, set up must be performed
manually on the external DGPS receiver .
➤
To set up a D-GPS:
Press the
D-GPS SET UP
soft key.
The D-GPS SET UP screen is displayed as shown in Figure 4-3 .
Figure 4-3: D-GPS Set Up Screen
DIFFERENTIAL GPS SET UP
SET BEACON FREQ.
287.5 kHz
MODE
BEACON ID
BEACON FREQUENCY
BIT RATE
SIGNAL STRENGTH
SIGNAL/NOISE RATIO (SNR)
DIFFERENTIAL AGE AUTO
1024
287.5kHz
100 bps
50dB
30dB
2 s
MODE
AUTO MAN
BIT RATE
100 bps
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