PRIMUS
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1000 Integrated Avionics System
A28--1146--112--00
C--17
PRIMUS
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II Radio System
Navigation Receiver Operation
The NAV frequency select window is in the upper right corner of the
main tuning page shown in figure C--10. The NAV window is identical
to the COM in that it has two lines, each associated with frequencies.
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NAV Frequency Select Window
Figure C--10
BASIC NAV TUNING
NAV radio tuning is done using the same procedure as COM radio
tuning. The NAV tuning window can also accommodate split DME
tuning.
Normal NAV tuning is as follows:
D
The top line of the NAV box displays active VOR or ILS frequency
D
The bottom line displays the memory frequency or a scratchpad
frequency.
The cursor encloses either the preset frequency and mnemonics or the
memory mnemonics.