Blaze FLIGHT-3 Operating Manual
Page 12
Cal Gain:
Once you are satisfied that the low level altitude “CAL FACTOR” is correct, apply a static pressure that will result in an al-
titude between 20000 and 30000 ft. Adjust the “CAL GAIN” until the altitude readout in the top right hand corner of the dis-
play agrees with your pitot static test set
NOTE:
Adjusting the “CAL GAIN” also changes the low level altitude calibration achieved when adjusting the “CAL FAC-
TOR”. Please recheck your low level altitude calibration and adjust if necessary. Recheck your altitude readout at the
higher altitude, and if needed slightly adjust the “CAL GAIN” again. Repeat the process until you are satisfied with both
the “CAL FACTOR” altitude and the “CAL GAIN” altitude.
Test Alt Encoder (Only shown if the comm out has been enabled):
This is a handy function to test the FLIGHT-3 transponder interface once the installation has been completed. The serial
output will output specific altitudes which can then can be used to test the serial RS232 output and the parallel gillham
output if using a CNV-ALT converter. The FLIGHT-3 will resume the normal output of the indicated altitude upon exiting
the test function.
The following codes are outputted:
Altitude
D4
A1
A2
A4
B1
B2
B4
C1
C2
C4
-1000ft
0
0
0
0
0
0
0
0
1
0
-900ft
0
0
0
0
0
0
0
1
1
0
-700ft
0
0
0
0
0
0
1
1
0
0
-400ft
0
0
0
0
0
0
1
0
1
1
-200ft
0
0
0
0
0
1
1
0
0
1
800ft
0
0
0
0
1
1
0
0
0
1
2800ft
0
0
0
1
1
0
0
0
0
1
6800ft
0
0
1
1
0
0
0
0
0
1
14800ft
0
1
1
0
0
0
0
0
0
1
30800ft
1
1
0
0
0
0
0
0
0
1
Each altitude reporting code line must be tested for integrity of connection if at any time the aircraft connections to the
transponder or altitude data source have been removed and reconnected. Integrity of the connections may be verified by
performing a test of mode C function of the transponder system.
Warning:
Do not use this function while in flight as incorrect altitude information will be sent to
the transponder.
