Memorex RX 1 Smart Manual de instalación descargar pdf (Pagina 28)

26 | Keypad & Display Description

NAV4 section which follows.

You will find the right hand window to be a helpful tool. In addition to identifying the

waypoint you are currently approaching, it identifies the waypoint at the end of the next

leg. The really unique feature of this screen is the graphical representation of your

actual course line approach angle relative to the next leg of your course. This approach

angle is continuously updated in real time and will help you setup for course changes.

Reset XTE and Skip Waypoint, described at the end of NAV2, is also available in NAV3.

NAV4 - Sensor Input Navigation

The NAV4 screen applies the wind instruments, speed log, compass, and depth sounder

inputs from external sensors to your active route, as appropriate. You can setup the

sensors in the CFG1 screen. Section 5 of this manual will guide you through the interfacing

capabilities of the CDU.

Use the following CFG1 menus to set this screen up:

Compass - Sets the input port number, compass type (Gyro, MX575 or Magnetic),

compass deviation table, and the input NMEA 0183 record from which to derive the

compass information. The NMEA 0183 record should be specified by the user, because

several NMEA 0183 records may contain compass information. This provides you the

capability of knowing the compass source exactly. The CDU only accepts NMEA 0183

formatted data for the compass input. Synchro or stepper gyro compasses are not

compatible.

Depth - Sets the input port number, units of measure for depths and tide data, sensor

offset, alarms, and the input NMEA 0183 record from which to derive the depth

information. The NMEA 0183 record should be specified by the user, because several

NMEA 0183 records may contain depth information. This provides you the capability

of knowing the depth source exactly.

Log - Sets the input port number, sensor type (pulse or NMEA 0183), alarms, and a

correction factor (if needed).

Set & Drift - automatically calculated based on GPS derived values.

Wind - Sets the input port number, units of measure, sensor offset, alarms, and the

input NMEA 0183 record from which to derive the wind information. The NMEA 0183

record should be specified by the user, because several NMEA 0183 records may

contain wind information. This provides you the capability of knowing the wind source

exactly.

This screen is divided into four windows. The window on the top left provides details

relating to the True Wind Angle (TWA), True Wind Speed (TWS) and True Wind Direction

(TWD), which are taken from the NMEA 0183 record of MWV or VWR. If the wind

information is given in relative terms, the CDU calculates true values using available GPS

course and speed information to make the necessary adjustments. Refer to the Glossary

for definitions on Apparent/True Wind Angle/Speed/Direction. To the right of the wind

information is your Velocity Made Good (VMG) towards the waypoint. The VMG data is

filtered to show the average speed from the last waypoint to your present position towards

the next waypoint. VMG is calculated from GPS data. The CDU will also use the above

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Memorex RX 1 Smart Manual de instalación Pagina 28