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B
A 1 kHz tone is available for calibration adjustments only.
3.1.11
Air Temperature Input
Outside Air Temperature is an optional input. This can come from a number of
sources such as ARINC 429/575 Air Data or a dedicated OAT probe. EGPWS
is capable of interfacing directly to a standard 500 ohm temperature probe for
low temperature operations.
J10-109 OAT_H, J10-110 OAT_L, J10-111 OAT_Ref.
3.1.12
GPS Input
GPS information is furnished in ARINC 429 and RS-232 (NEMA or RNAV)
formats. The following Information is required from the GPS:
1. Latitude/Longitude
2. Ground Speed
3. True Track Angle
4. GPS Altitude
5. Indication of the quality of the navigation solution. (VFOM and HFOM
prefered).
Optional information to be used, if available, are:
1. GPS Vertical Velocity
2. Number of satelites tracked
3. Results of RAIM
4. Altitude aiding flag
An internal GPS xpress Card provides all the needed signals for proper
operation.
Rev 3, August/2001
NOTE
NOTE
10609I03.CDL
KMH 880/KTA 870
Page 3- 9
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