The NAV receiver contains two liquid crystal frequency displays, on
which two different frequencies can be set using the tuning dials. The
microcontroller allows programming of an “active” and a “preset” fre-
quency which can be quickly swapped during VOR/LOC operation by
pressing the transfer button.
The NAV receiver possesses a built-in testing function. By pressing the
TEST button it is possible to check the proper functioning of both liquid
crystal displays, the VOR/LOC converter and the GS converter.
The tuning dials of the NAV receiver can also be used to remotely con-
trol a DME unit (parallel with 2-out-of-5 code).
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 10
Issue 12/97
On the right two digits display the version number and on the left
two digits display the software Spec..
“Fr” appears in the left indication and OFF or ON in the right indication
after display the version number and software Spec..
NOTE
In the service mode, the navigation receiver is not ready
for operation
The parameters are selected in stages in the service mode by pressing
the
MDE
key.
Release the frequency setting (channel selection only)
Call up function “Fr” using the
MDE
key. The following display appears:
left LC-Display
Fr
right LC-Display
ON or OFF
Select the required setting, using the
kHz
frequency selector switch and
store the setting by pressing the
STO
key.
OFF =
Frequency setting not possible. The navigation
receiver can only work on the frequencies stored
in the individual channels.
ON =
Frequency setting possible (standard setting).
Operating Instructions
Issue 12/97
Page 23
