User and Installation Manual -
21
AvMap
Ultra EFIS
Units
measurement
settings
To change units measurement select “UNITS” in the “SETUP” menu.
You can change the following units measurements:
• NORTH: compass heading can be set in degrees with respect to magnetic north or
true north.
• PRESSURE: barometric pressure can be set in hPa or inHg.
• SPEED: All speed referred information (IAS, wind speed, ground speed, aircraft
V-speed range) can be set in knots, kph, mph or m/s.
• ALTITUDE: Altitude can be set in feet or meters. The unit measurement set for
altitude is used by the altimeter and vertical speed indicator. When altitude is set to
feet the vertical speed is shown in ft/min, when altitude is set to meters the VSI is
shown in m/s).
• DISTANCE: Distance to an VOR or ADF navigation point can be set in nm, miles or km.
4.5 NMEA-OUT
The Ultra EFIS comes with two RS232 serial connections (“Serial A” and “Serial B”),
both can be enabled for sending out gps data (NMEA messages) to external devices
(autopilot, transponder, navigation or EFIS system). NMEA 0183 protocol is applied for
sending out the following NMEA messages: GGA, GSV, GSA, RMC, RMB, APB, APA.
Note: See Appendix A for a description of each NMEA message.
• Select “NMEA-OUT” in the “SETUP” menu and select “Serial A” or “Serial B” in order
to setup the desired settings per serial, and confirm by pressing the knob.
• Select ON/OFF in order to enable or disable the NMEA-OUT function, and confirm
by pressing the knob.
• Select the required baudrate (4800 / 9600 / 144400 / 19200 / 38400) and confirm by
pressing the knob.
• Select ON/OFF for each NMEA message in order to enable of disable the NMEA
message to be send out, and confirm by pressing the knob.
IMPORTANT
: Check the manual of the connected external device in order to select
the required baudrate and NMEA messages for a correct serial interface. It is possible
to enable Serial A and Serial B in parellel and select for each serial different NMEA
messages and different baudrate. For a succesfull serial interface the NMEA messages
and baudrate settings on the Ultra serial and the connected external device must
correspond.
IMPORTANT
: NMEA messages that contain destination data (RMC, RMB, APB and
APA), often used when connected to an autopilot, navigation or EFIS system, will
contain the destination POI selected in the ADF navigation menu. Destination POI’s
that are selected in the VOR navigation menu are not used by the Ultra when sending
out NMEA messages.
IMPORTANT
: GPS reception is required in order to send out useful nmea messages
data to external devices.
