Vhf Com Tuning - BOMBARDIER LEARJET 40 Pilot's Manual

Pilot's Manual
The NAVIGATION page provides the following data, when valid data
is available: NAV, ADF, CRS (selected course), DME (distance to tuned
station), bearing pointers for VOR and ADF, TO/FROM indication,
MARKER BEACONS, HEADING, lateral deviation (VOR and ILS),
and vertical deviation (GS only). The navigation displays on both
RMUs use AHRS#2 heading information and NAV information from
NAV 1 and ADF 1.

VHF COM TUNING

Normal operation of the RMU is with the radio tuning page displayed.
A section for COM is located in the upper left corner. The COM win-
dow displays two frequencies. The top line displays the active frequen-
cy of the COM, while the line below will display the preset frequency.
When pressing the line select key (preset frequency) adjacent to the
lower frequency, a yellow cursor encloses that frequency. This step is
not always necessary since the cursor normally "parks" over the preset
frequency box. Anytime the cursor has been moved to another area on
the main radio tuning page, it will automatically return to the COM
preset frequency after twenty seconds of inactivity on that page. When
the yellow cursor is enclosing the preset frequency, that frequency can
be changed by adjusting the tuning knobs. The preset frequency can
then be changed (flip-flopped) with the active frequency by depressing
the transfer key.
The storage function can be accomplished by pressing the STO (store)
key located at the bottom of the RMU. When the STO key is depressed,
the nomenclature below the preset COM frequency will change back to
MEMORY, and the digit following MEMORY will indicate in which
memory location the frequency is stored. With the main tuning page
displayed, the rotary tuning knob can be used to scroll through the fre-
quencies stored in memory. As each memory location (channel) is se-
lected, the stored frequency will be shown on the COM preset line
which can then be moved to the active position by depressing the trans-
fer key.
5-53
PM-132A