Honeywell BENDIX KING KMH 880 System Installation Manual page 20

B B
B B
This option is programmed into the EGPWS configuration module during sys-
tem installation and thus remains specific to the aircraft. Once set up, any
Enhanced Ground Proximity Warning Computer installed in the aircraft will
access the configuration module and provide the appropriate mode of opera-
tion.
All aircraft, which are required by Federal Aviation Regulations to have
Terrain Awareness and Warning System (TAWS) comply with TSO
C151a-class B, must be configured with the TSO curves. Additionally,
the alternate Audio Menu must be selected to meet the alert/warning
aural requirements of the TSO.
b. Non-TSO Mode
If this installation is intended to provide the operator with a non-required Ter-
rain Awareness and Warning System to enhance safety of flight, it may be
appropriate to select the Non-TSO Mode of operation. As a general rule,
higher performance aircraft, especially ones flown primarily IFR and operat-
ing into larger airports may find the TSO curves most appropriate. Slower
performance aircraft operating primarily VFR and operating at low altitudes
AGL into small airports may find the Non-TSO curves better suit their opera-
tion. Any installation not required to comply with TSO C151a-class B may
select either the Basic Audio menu or the Alternate Audio menu.
The EGPWS may also be installed in aircraft that do not require FAA approved
TAWS Systems, and may be utilized with an optional set of alerting and warning
parameters that are designed especially for smaller piston aircraft and their nor-
mal flight characteristics.
c. GPS Sensor
The KMH 880 contains an embedded GPS-XPRESS Card sensor that pro-
duces validated navigational position data by continuous signal acquisition
and tracking of the navigational satellite network. The GPS Sensor receives
the C/A code signals transmitted by the satellite network on the L1 frequency
of 1575.42 MHz. The sensor has 8 signal processing channels allowing 8 sat-
ellites to be tracked simultaneously. At least 4 satellites must be in view of the
antenna for the sensor to operate. The GPS Sensor uses data in the satel-
lites' navigation messages to solve for latitude, longitude, altitude, horizontal
velocity, vertical velocity and current UTC.
Page1-6
NOTE
10609I00.ZIPCDL
KMH 880/KTA 870
Rev 0, October/2000