Iff In Emergency - BMS F-16C/D 4.34 Flight Manual

T.O. BMS1F-16CM-1

1.16.6 IFF in emergency

Emergency operation is done by turning the IFF MASTER Knob to EMERG. This automatically
broadcasts emergency codes in all modes:
•
70 for Mode 1.
•
7777 for Mode 2.
•
7700 for Mode 3.
•
Mode 4 uses the Backup M4 key code.
When placing the IFF in EMERG, the IFF STAT page is not
manageable anymore and displays the emergency status.
1.16.7 IFF CAUTION Lights
The caution panel IFF light illuminates whenever there is a condition preventing IFF Mode 4 operation.
This includes:
•
IFF in STBY.
•
Mode 4 disabled in UFC or on the BACKUP panel, depending on C&I switch position.
•
Mode 4 keys zeroed.
•
RF switch in SILENT or QUIET.
Additionally, if a Mode 4 interrogation was received on a different key than what the transponder is set
to, the IFF caution light will illuminate for a few seconds. This is the second way to know if a wrong key
interrogation has been received, along with the Audio monitor tone discussed in the STAT page
section.
BMS 4.34 Dash 1
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BMS 4.34 Change 2.00
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