Chapter 12 - Setting Up Your 958
958 Operator’s Manual, Rev. A
Page 175
Manual mode
Although the need is rare, you can manually override
automatic mode at any time by issuing tuning commands
using the 958’s
KEYPAD
. In manual mode, the differential
receiver outputs its corrections only from the selected station.
To manually choose a differential station, you must select the
frequency of the desired station:
1. On the
RECEIVER OPTIONS
screen, highlight the
BEACON
FREQUENCY
option and press the
EDIT
menu key.
2. Change the settings from
AUTO
to
MANUAL.
A differen-
tial transmitter frequency appears to the right of the word
MANUAL.
3. Press the
CURSOR PAD
right to highlight the digits you
want to change. Enter the appropriate frequency—any
value between 283.5kHz and 325kHz—and press the
ENTER
key.
NOTE:
You can also manually set the baud rate (the transmitter’s data
transmission speed) for the selected differential frequency. H
o
wever,
Northstar strongly recommends leaving the
BEACON BAUD RATE
setting at
AUTO
.
NOTE:
The 958 can manually control a non-Northstar external differential
receiver as long as the receiver supports the MX50R control protocol.
Check the manufacturer’s instructions to see they support this control
protocol.
Setting differential
operation
The 958’S differential operations setting has four options for
differential information:
•
auto - the 958 prefers WAAS differential corrections, but
will automatically switch to radiobeacon differential cor-
rections if WAAS is not available or less accurate and if
the 958 is connected to an optional external radiobeacon
receiver
•
disabled - the 958 doesn’t use any differential corrections,
only GPS
Summary of Contents for 958
Page 1: ...NORTHSTAR 958 Integrated Navigation System Operator s Manual P N GM958UM Revision A ...
Page 2: ......
Page 8: ...Page iv 958 Operator s Manual Rev A ...
Page 26: ...Page 18 958 Operator s Manual Rev A Chapter 1 Getting Started ...
Page 128: ...Page 120 958 Operator s Manual Rev A Chapter 8 Understanding Waypoint Route Navigation ...
Page 150: ...Page 142 958 Operator s Manual Rev A Chapter 10 Understanding Radar Functions ...
Page 198: ...Page 190 958 Operator s Manual Rev A ...
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