NorthStar 941X Reference Manual page 96

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beacon
frequency/
beacon baud
rate
dgps operation
Page 88
To change the speed averaging value:
1. Move the cursor arrow in front of the GPS SPEED AVERAGING
option and press the EDIT menu key.
2. Use the up/down cursor keys to select an averaging time of two to
10 seconds—or OFF.
3. Press ENTER to make the change, or CLEAR to leave the value at it
previous setting.
You may change the speed averaging value at any time without affecting
other 941X navigation functions.
(RECEIVER OPTIONS) (RECEIVER OPTIONS)
(RECEIVER OPTIONS) (RECEIVER OPTIONS)
If your 941X either contains an internal beacon receiver or is interfaced
to an external Northstar beacon receiver, you can set the 941X to control
the beacon receiver automatically or control it manually yourself. Under
automatic control, the receiver scans for nearby beacon transmitters and
uses the one having the best signal for your area. It finds the beacon fre-
quency and data transfer (baud) rate, then receives data fully automati-
cally.
If you prefer, you can set the beacon frequency and baud rate manually
to tune in a particular beacon transmitter. (Refer to the "manual mode"
operation of the internal beacon receiver on page 75.) For normal opera-
tion, it is recommended that these controls be set to AUTO.
The beacon frequency can be set to any value between 283.5kHz and
325kHz. The baud rate should be set to AUTO, but can be manually set,
if necessary, to any of the four standard rates: 25bps, 50bps, 100 bps or
200 bps.
(RECEIVER OPTIONS) (RECEIVER OPTIONS) (RECEIVER OPTIONS) (RECEIVER OPTIONS)
This option allows you to enable or disable use of differential corrections
while navigating in areas where no DGPS signals are available (several
hundred miles from the nearest transmitter, for instance). When set to
DISABLED, the 941X ignores the use of DGPS signals, whether they are
from an internal or external source. For normal operation, it is recom-
mended that this setting be left at the factory default of ENABLED.
8 — Customizing the 941X 8 — Customizing the 941X
8 — Customizing the 941X 8 — Customizing the 941X
Rev. D