IFD500 Series Pilot Guide
Map Subsystem 4-63
TAWS CONTROL
When either TAWS or HTAWS is enabled and TAWS self-test is not
in progress, an LSK is shown on the page in order to control
TAWS/HTAWS capability.
Map TAWS Tab with LSKs
When configured for TAWS (i.e. fixed-wing), the LSK provides two
selections:
On – the full TAWS-B capability is enabled, including FLTA,
Altitude Callouts, EDR, PDA, and NCR (see page )
FLTA Off – the FLTA and PDA functions are disabled, but
EDR and NCR remain enabled
When configured for HTAWS, the LSK provides three selections:
On – the full HTAWS capability is enabled
RP Mode – the HTAWS function is operating in “reduced
protection” mode, where protection limits are reduced to
prevent nuisance alerts.
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