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Page 90 8 — Customizing the 941X
8 — Customizing the 941X8 — Customizing the 941X
8 — Customizing the 941X Rev. D
After this “timeout” period elapses with no DGPS data having been re-
ceived, the 941X will revert to navigating with normal GPS, the DGPS
display indicator (shown at left) will be turned off, and the “DGPS lost”
alarm will sound, if enabled (see “Alarms,” beginning on page 68). DGPS
navigation will resume automatically as soon as valid corrections are re-
ceived again.
(RECEIVER OPTIONS)
(RECEIVER OPTIONS)(RECEIVER OPTIONS)
(RECEIVER OPTIONS)
The
LOWEST SAT ELEVATION
option is used primarily in technical
applications where the 941X is tracking all visible satellites, regardless of
how low they are situated relative to the horizon. In those instances
where high-precision fixes are necessary, the advanced user can modify
this option to “hide” any low satellites, thereby preventing their use as
sources of GPS position information, and avoiding potential errors.
If needed, this option is adjustable from 0° to 25°, in 5° increments.
The 941X allows you to connect (or “interface”) directly with a variety of
external devices, such as autopilots, radars, depth sounders, computers,
etc.
Connection is made through any of three data transmission “ports” lo-
cated on the back side of the 941X: two NMEA ports and one RS-232
port. Each is capable of operating independently, thereby giving you the
flexibility of driving (or “talking to”) three separate devices simultane-
ously. The ports are also independently configurable to meet the specifi-
cations of most peripheral navigation equipment. This ensures a
customized setup for virtually any NMEA 0183-compatible device. Once
configured, the 941X will continuously send a stream of data to the de-
vice(s).
lowest sat
elevation
NOTE
It is recommended that this option be left at the factory default
of 10°.
Port Setup
Options