2. Press the
STO
key. The next free channel is shown flashing “ch”.
The channel in which the frequency is to be entered is selected
using the
MHz
and
kHz
frequency switches. Channels which are
already occupied are indicated by “CH” and can be overwritten.
3. Press the
STO
key. The frequency is stored in the selected chan-
nel and the storage procedure ended.
NOTE
If no input (action) takes place for more than 7 seconds du-
ring the storage procedure, the operation is automatically ab-
orted off. A storage operation can be aborted off at any time
by pressing the
MDE
key.
q
Service mode (equipment configurations)
The service mode is meant to enable the ground technicians to set
the equipment configuration and must not be used in flight.
The following settings can be changed or set:
Fr
Inhibiting the frequency setting
(channel selection only (ON/OFF)
CS
Inhibiting the frequency storage (ON/OFF)
dEL
Erasure of stored frequencies
COdE
Entering a password to interlock the
equipment configuration
Poti
ReIease the volume control (ON/OFF)
Switch off the navigation receiver. Press and hold the
MDE
key whilst
the navigation receiver is being switched on. The right display must
show the version number and software Spec. approximately 2 seconds.
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 22
Issue 12/97
CONTROLS AND INDICATORS
q
NAV receiver
Meaning of symbols on controls and indicators
Symbol
Description
Function
1
ON/OFF switch
combined with
volume control
ON/OFF switch and volume
control.
2
TEST key
Tests functional status of
both LCDs, the VOR/LOC- /
GS-converter and the indi-
cator.
3
IDT key
Switching the suppression
of the VOR identification on
or off when monitoring flight
and weather information.
4
STO key
Storage of set frequency or
other settings.
Operating Instructions
Issue 12/97
Page 11
IDT
TEST
STO
