Learjet 60 - Audio Control -Flight Operation; Marker Beacon HI;LO Switch

Learjet 60

Pilot's Manual
MARKER BEACON HI/LO SWITCH
The
HI/LO switch on the pilot's audio control panel controls the #1
marker
beacon receiver
and the
HI/LO switch on the copilot's audio
control panel controls the #2 marker
beacon receiver .
HI Position -
When the switch is in this position, the marker
beacon
receiver sensitivity
is increased .
LO Position -
When the switch is in this position, the marker beacon
receiver sensitivity
is decreased .
AUDIO CONTROL - FLIGHT
OPERATION
1 . Applicable
MASTER VOLUME Controls -
Set to the "ON" po-
sition and
rotate to a comfortable listening
level .
2 . Applicable
Radio Monitor Switches - Set
to the "ON" position
and rotate
to a comfortable listening
level
.
The VHF 1 and VHF
2 volume controls
do not affect sidetone
levels . The HF 1 and HF
2 volume controls
will affect the sidetone
level on most models
since audio and sidetone
utilize a common
line from the trans-
ceivers .
Some HF transceivers do not
have sidetone capabilities
.
3 .
MIC SELECT Switch - Rotate to
desired position .
PM-123

5-47
Original