PRIMUSr 1000 Integrated Avionics System
A28--1146--112--00
PRIMUS
â
II Radio System
C--24
ATC FAILURE WARNINGS
If the squitter function or the transmitter of the active Mode S
Transponder fails in flight, a SQUITTR INOP warning message is
displayed in red at the bottom of the ATC window. This message
indicates that the selected TCAS compatible Mode S Transponder has
lostsomeofitsabilitytooperateaspartofacollisionavoidancesystem.
If the SQUITTR INOP message is displayed, do a pilot--activated
self--test (PAST)ontheATC.Ifthe testfails(ATCERRin redintheATC
window), the transponder is most likely not transmitting properly. The
independent, other side transponder should be selected. If the
transponder passes PAST, the squitter function only is not operating
properly; this onlyslightly reducesthe TCAS reply time.It is preferable
to use the other side transponder.
Ifatransponderfails(i.e.,itdoesnotacceptacommandfromtheRMU),
the RMU displays an ATC1 INOP or ATC2 INOP warning message in
red at the bottom of the ATC window. If ATC INOP is displayed, the
affected transponder should not be used. The independent, other side
transponder should be selected.
ADF Operation
GENERAL
The ADF receiver can drive a variety of bearing pointers. Its receiving
frequency range is 100 to 2183 KHz. The ADF frequency is turned like
for the COM and NAV modules, using the frequency select key next to
theADFfrequencywindowtoposition theyellowcursorbox,andtuning
with the TUNE knobs.
TheextendedfrequencyrangeoftheADFtracksthenewlowfrequency
non--directionalbeacons(NDBs)below200kHzaswellasreceivingthe
marine emergency band at 2181 to 2183 kHz (installation dependent).
To Next Page
Loading...
