Elite PI-121, Руководство оператора, Страница: 323 / 390

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CHAPTER 5: AIRCRAFT
The Collins Pro Line II COMM/NAV radios are unique in
that they allow for several different modes of operation.
They can store up to six COMM frequencies in memory
and up to four NAV frequencies. The ADF radio can also
store up to four frequencies in memory.
The COMM, NAV and ADF radios may all be used in
normal tune/preset mode, or they may be used in direct
tune mode. In tune/preset mode the active frequency is
shown in the upper display and the lower display contains
the inactive frequency where all frequency changes or
revisions are made. To switch between the two frequencies
simply push the fl ip/fl op switch on the AP-3000 or use the
mouse to toggle the XFR switch on the radio head on-
screen. The radios may also be used in direct tuning mode
simply by pressing and holding with the mouse the ACT
button located in the lower right corner of each radio head
for two seconds. Activating the direct tuning mode will
cause the lower display to change to a series of dashes
and the upper display now becomes the frequency in use
and where all changes are made.
To store COMM, NAV and ADF frequencies use the mouse
to move the MEM toggle down repeatedly until the desired
channel is displayed. Once the desired channel number
is indicated simply push the mouse the STO button on-
screen twice in fi ve seconds to store a COMM frequency
in memory. NAV frequencies may be stored in a similar
fashion or by pushing the appropriate navigation radio
RAD button twice within fi ve seconds on the
AP-3000
panel. Storing an ADF frequency may be accomplished
by using the mouse as before or by pushing the ADF SET/
RST button twice within fi ve seconds.