User Guide

Series III Avionics
Pilot's Guide
Page 12
VNS-41A Controls
Function Selector and Volume Control
OFF - Deactivates the VNS-41A System.
Records the last frequencies displayed
into the system's non-volatile memory.
ON - Activates the VNS-41A System. The last
frequencies displayed reappear on the
display.
RAD - Displays the radial the aircraft is on from
the selected VOR. It is displayed digitally
below the selected VOR frequency.
BRG - Displays the bearing to the selected
VOR. It is displayed digitally below
selected VOR frequency.
Volume Control - (Inner Knob) adjusts the audio
volume of selected the station.
Frequency Selector
The outer knob tunes the receiver in whole MHz
steps (108, 109, 110, etc., up to 117 MHz).
The inner knob tunes fractional MHz
frequencies in 50 kHz steps (.00, .05, .10, .15,
etc., up to .95).
Frequency Transfer Button
Press and release to exchange the active and
standby frequencies when both are displayed.
Press and hold 2 seconds to remove the
standby frequency so the active frequency may
be tuned (press again and hold 2 seconds to
restore the standby frequency).
Press and hold 7 seconds to tune the receiver to
108.00 MHz.