Ads-B Receiver Options; Audio Volume; Lcd Dim Point; Lcd Brightness Curve - Honeywell BendixKing KT 74 Installation Manual

Enter the position of the GPS antenna relative to the nose of the aircraft. The
position is stored and transmitted to the nearest 6.6 feet (2 m); great
accuracy in measurement is not required.

4.3.16 ADS-B Receiver Options

In the U.S.A. there are two ADS-B channels, 1090ES and UAT. There is also
an ADS-B based traffic information service called TIS-B. ADS-B ground
stations relay this information between the two channels so that equipped
aircraft can receive traffic information. To limit channel congestion these
services are only provided to aircraft equipped to receive them. When an
aircraft is equipped with an ADS-B receiver the KT 74, if configured, will
periodically report what receivers are on-board so that ground station data
will be transmitted to the aircraft.

4.3.17 Audio Volume

The altitude alert function includes an audio alert, as does the TIS-A traffic
service. This configuration item lets you adjust the audio volume output from
the transponder using the numeric buttons (6 and 7). While you are adjusting
the volume control, the transponder will periodically output a test signal to
verify the settings.
Press FUNC to accept and move to the next menu item.

4.3.18 LCD Dim Point

The LCD backlight illumination is controlled automatically by the ambient
light sensor. Depending on the amount of light spill in the cockpit, and the
brightness of other adjacent avionics displays, it may be necessary to adjust
the darkest setting of the backlight to best match other equipment and to
improve the cockpit appearance.
NOTE: It is only practical to do this in pitch darkness, since that is the in-flight
environment that you are trying to reproduce. If you are working in a hangar
with any other lighting it may be better to leave the setting in the mid-range.

4.3.19 LCD Brightness Curve

The actual maximum brightness of the LCD cannot be increased with this
control. What it controls is the rate at which the lighting increases in
brightness as the ambient light increases. This allows the brightness to be
matched to other avionics displays during light level changes as far as
possible.

4.4 Test items

4.4.1 Interface Check

The interface check screen displays the current state of the external IDENT,
external STANDBY and external GROUND inputs. Exercise these inputs to
confirm the correct behavior.
© Honeywell International Inc. Do not copy without express permission of Honeywell.
INSTALLATION MANUAL
89000007
Page 4-6
15 Nov 2013