Honeywell BENDIX KING KMH 880 System Installation Manual page 196

B
Verify that the Heading Status goes INVALID.
Verify that the "TAS" flag appears on the traffic display.
Reset the circuit breaker. Verify that the TAS flag clears.
Pass/Fail ______
5. Verify that the encoding altitude is properly interfaced to the TAS
Processor. Confirm that the encoding altitude of the transponder and
TAS agree.
PRECAUTIONS MUST BE TAKEN TO INSURE THAT THE ALTITUDE TEST
OF THE TRANSPONDER DOES NOT INTERFERE WITH OTHER TCAS/TAS
EQUIPPED AIRCRAFT. SHIELDING THE TRANSPONDER AND TAS ANTEN-
NAS IS THE BEST WAY TO PREVENT INTERFERENCE WITH OTHER AIR-
CRAFT.
The TAS, transponder and encoding altitude source(s) should be
operating normally for the following test. Connect the Diagnostic
Computer to the KMH/KTA through the RS-232 port. Run the TAS-
DIAG Input Data program and observe the following on the Diagnostic
Computer.
Monitor the altitude source in the cockpit. Set the baro to 29.92".
Observe the Enc. Altitude readout. The computer readout should
agree to within 50 feet of the cockpit altimeter.
The Enc. Alt. Status in the computer should indicate VALID.
Confirm the following Encoding Altitudes at the altimeter, Diagnostic
Computer and transponder:
Page 4-26
CAUTION
Altitude at 2,000 feet, the computer screen indicates ______feet.
Transponder indicates ______ feet.
Altitude at 7,800 feet, the computer screen indicates ______ feet.
Transponder indicates ______ feet.
Altitude at 19,000 feet, the computer screen indicates ______ feet.
10609I00.ZIPCDL
KMH 880/KTA 870
Rev 0, October/2000