Becker NR 3320 User manual

Subject to technical changes
OPERATING INSTRUCTIONS
Navigation-Receiver
NR 3320 - (01) / - (02)
NR 3330 - ( 01) / - (02)
BECKER FLUGFUNKWERK GMBH
Baden Airpark B 108
D-77836 Rheinmünster (Germany)
Tel. [phone] / 305-0
Telex 781 271 beflu
Fax [phone] / 305217

© Copyright by Becker Flugfunkwerk
Article-No.: 0516.718-071 Issue 12/97
Becker Flugfunkwerk GmbH
Baden Airpark, Gebäude B 108
77836 Rheinmünster (Germany)
Tel. [phone] / 305-0
Fax [phone] / 305-217
Failure description
Unit type : Serial number :
Aircraft type :
Brief description of the failure :
.................................................................................................................
.................................................................................................................
.................................................................................................................
.................................................................................................................
Should the fault only occur sporadically, please answer the following
questions :
The fault occurs after . . . . . minutes of operation.
The fault occurs under the following environmental conditions :
plow temperature
phigh temperature
phigh humidity
pvibration
The fault is engine speed-dependent and occurs above/below . . . . . rpm.
Should any problems arise, I may be contacted under the following adress :
...................................................................................
..................................................................
..................................................................
.............................................................. office: ...................................
.............................................................. private : ...................................
I am available between 8 a.m.
and 4 p.m. under the following
telephone number :

REPAIR INSTRUCTIONS
If an equipment fault the unit may be sent to a Becker Dealer or the Be-
cker Product Support together with a description of the fault. The com-
pleted fault description shortens the repair times and hence lowers the
resultant costs.
These operating instructions do not replace the equipment manuals lis-
ted below.
qEquipment manuals
To be purchased from the manufacturer or Becker Dealer:
Installation and Operation
DV 38001.03 Article-No.: 0504.971-071
Maintenance and Repair
DV 38001.04 Article-No.: 0504.981-071
Operating Instructions Article-No.: 0516.718-071
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 32 Issue 12/97
TABLE OF CONTENTS
Page
IMPORTANT 1
INTRODUCTION 1
SAFETY PRECAUTIONS 3
GENERAL INFORMATION 5
pShort description of NAV receiver 5
CONTROL AND INDICATORS 9
pNAV receiver 9
OPERATING INSTRUCTIONS 13
pOperating instructions NAV receiver 13
pSwitching on the navigation receiver 13
pTEST mode (by pressing the TEST button) 14
pVOR mode 14
pMonitoring flight and weather information 15
pLOC mode 15
pGS mode with the NR 3320 - ( ) 16
pOperation of the various modes 16
pFrequency setting mode 17
pFrequency preselection mode 18
pChannel setting mode 19
pStorage procedure 19
pService mode (equipment configurations) 20
pDeletion of all stored frequencies in the storage channels 24
Operating Instructions
Issue 12/97 Page 1

Page
TECHNICAL DATA 25
pGeneral data 25
pVOR/LOC receiver 26
pVOR/LOC system functions 27
pGS receiver and functions in the NR 3320 - ( ) 28
pIndicators 29
REPAIR INSTRUCTIONS 30
pEquipment manuals 30
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 2Issue 12/97
Centering error under all £13% of standard deflection
conditions, listed in RTCA DO-192
with 95% probability
GS needle output max. of 3 needles and/or flags
with 1 kWeach
GS warning flag output max. of 3 needles and/or flags
with 1 kWeach
qIndicators
VOR/LOC indicator (singlepointer) IN 3300 - (4) / - (9) or
for NR 3330 - (01) equivalent indicator
VOR/LOC indicator (crosspointer) IN 3300 - (3) / - (5) - (8) or
for NR 3320 - (01) equivalent indicator
Compatible indicators may also be used if they meet relevant require-
ments. They must have equivalent or better environmental performan-
ce characteristics as the indicators listed above with respect to tempe-
rature, altitude, humidity and vibration.
Operating Instructions
Issue 12/97 Page 31

Resolver output standard as per ARINC 407
VOR/LOC needle output max. of 3 pointers and/or flags
with 1 kWeach
VOR/LOC warning flag output max. of 3 pointers and/or flags
with 1 kWeach
TO/FROM output max. of 3 pointers and/or flags
with 1 kWeach
Autopilot output for VOR course tracking and
ILS mode
qGS receiver and functions in the NR 3320 - (01) / - ( 02)
Receiver type single-conversion super-
heterodyne receiver
Frequency range 329.15 MHz . . . 335.00 MHz
No. of channels 40
Channel spacing 150 kHz
Sensitivity £-80dBm for complete
disappearance of warning flag
Bandwidth ³±20 kHz at 6 dB
Selectivity ³42 dB at DF³150 kHz
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 30 Issue 12/97
IMPORTANT
Carefully read these operating instructions right through before attemp-
ting to operate the NAV receiver.
Keep these operating instructions carefully. They contain important sa-
fety and operating instructions for the NAV receiver.
INTRODUCTION
Thank you for purchasing the BECKER NAV receiver. The NAV recei-
ver can be installed in the instrument panel or centre console or opera-
ting console and is easy to operate. The technology used is to the state
of the art.
To fully utilise the capabilities of your NAV receiver, please carefully
read these operating instructions right through before you start opera-
ting the set.
If you have any questions regarding the operation of the NAV recei-
ver, please get in touch with your nearest Becker Dealer or with the Be-
cker Product Support.
Operating Instructions
Issue 12/97 Page 3

The WARNING, CAUTION and NOTE highlights have the following
meanings:
Failure to comply, or incorrect compliance,
with these instructions or procedures can lead
to injuries or fatal accidents.
Failure to comply, or incorrect compliance,
with these instructions or procedures can lead
to damage to equipment.
NOTE Feature to which attention should be drawn.
lNever connect the NAV receiver to alternating current voltage or
to voltage sources exceeding 32 V DC.
lNever connect the NAV receiver with reversed polarity to a volta-
ge source.
lThe installation of the NAV receiver in ambient temperatures be-
low - 55°C or above + 85°C is to be avoided.
lSwitch off the unit when starting or shutting down engines.
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 4Issue 12/97
WARNING
CAUTION
CAUTION
AGC £3 dB from -87 dBm . . . -10
dBm
Distortion £10%
Audio output 150 mW into 300Wsymm.
NAV signal (composite) 500 mV at 30 Hz, mod = 30%
VOICE filter ³20 dB reduction
DME remote control parallel, with 2-out-of-5 code
in accordance with ARINC 410
qVOR/LOC system functions
Sensitivity £-93 dBm for full direction
sensitivity
Bearing error under normal £±2°
condition
Bearing error under all £±2.7°
conditions listed in
RTCA DO-196, with 95%
probability
Course deviation for full ±10°
scale deflection
LOC centering error under all £11% of standard dflection
conditions, listed in RTCA DO-195
with 95% probability
Operating Instructions
Issue 12/97 Page 29

Max. operating altitude 50 000 ft.
Dimensions
Front panel 47.5 x 146 mm
Casing depth 183 mm with antenna jack
Weight of
NR 3320 - (01) approx. 0,885 kg
NR 3320 - (02) approx. 0,835 kg
NR 3330 - (01) approx. 0,745 kg
NR 3330 - (02) approx. 0,695 kg
qVOR/LOC receiver
Receiver type triple-conversion
superheterodyne receiver
Frequency range 108.00 MHz - 117.95 MHz
No. of channels 200
Channel spacing 50 kHz
IF-Frequencies 1,2,3 71.05 MHz, 21.4 Mhz,
455 kHz
Sensitivity (audio) £-93 dBm for ³6 dB SINAD
Bandwidth ³12 kHz at 6 dB
Selectivity ³65 dB at DF³ ± 50 kHz
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 28 Issue 12/97
SAFETY PRECAUTIONS
lSwitch off the navigation receiver before starting or shutting
down engines !
lThe NAV system should be connected to the aircraft power supp-
ly by its own 1 A circuit breaker.
lWarning! Reception is only possible when there is a quasi-optical
sight to the VOR station.
lWhen the warning flag in the display unit appears, the course de-
viation needle must then not be used in the continuing flight !
lWarning! When flying with the autopilot locked on to VOR, the
OBS must not be rotated because any change in the off-course
needle is followed by the autopilot !
lIf the off-course needle instrument fails, no warning flag appears.
Check the off-course needle by activating the TEST function. The
course deviation needle must deflect halfway. Important to check
before approach to landing !
lDuring approaches on the back beam, a needle deflection no
longer corresponds to a command indication. In this special
case, course corrections must be made opposite to the needle
deflection !
lWhen overflying VOR stations a cone of silence of ±45°occurs
in which the warning flag appears and the course deviation need-
le stays in the mid position.
lWhen flying over mountains the course deviation needle may
deviate about the mid position (reflections) when approaching or
leaving VOR stations. Doppler VOR stations produce substantial-
ly more stable indications under these conditions.
Operating Instructions
Issue 12/97 Page 5

lEMC note: If the antennas of transmitting equipment and of the
navigation receiver are not sufficiently decoupled, it is possible
that the warning flag may appear during transmission or the cour-
se deviation needle may deflect. Inadequate decoupling is possi-
ble with airframes made of wood or synthetic materials or where
the antennas are mounted close together.
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 6Issue 12/97
TECHNICAL DATA
qGeneral data
Supply voltage + 13.75 V or + 27.5 V DC
Current consumption of typ. 340 mA
NR 3320 - (01) (without panel illumination)
Current consumption of typ. 300 mA
NR 3320 - (02) (without panel illumination)
Current consumption of typ. 280 mA
NR 3330 - (01) (without panel illumination)
Current consumption of typ. 240 mA
NR 3330 - (02) (without panel illumination)
Current consumption of typ. 230 mA at 27.5 V
panel illumination typ. 460 mA at 13.75 V
typ. 1.4 A at 5 V
Overcurrent capacity of
internal fusing 1,5 A
Recommended external
overcurrent protection 1 A without panel illumination
Operating temperature range - 20°C ... + 55°C
(short-time to + 70°C)
Storage temperature range - 55°C ... + 85°C
Interface RS 422
Operating Instructions
Issue 12/97 Page 27

Release the volume control
Call up function “Poti” using the MDE key. The following display appe-
ars:
left LC-Display Poti
right LC-Display ON or OFF
Select the required setting using the kHz frequency selector switch and
store the selection by pressing the STO key.
OFF = The audio output signal is off and can not be
adjusted with the volume control.
ON = The audio output signal can be adjusted with the
volume control (standard setting).
Ending of the service mode
The navigation receiver must be switched off to finish end the service
mode.
qDeletion of all stored frequencies in the storage channels
Press and hold the STO and MDE keys whilst switching on the navigati-
on receiver. All the stored frequencies in the storage channels are dele-
ted, with the exception of channel 01.
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 26 Issue 12/97
GENERAL INFORMATIONS
The NAV receiver NR 3320 - (01) is designed to receive and convert
VOR and LOC signals on 200 channels in the frequency range between
108.00 MHz and 117.95 MHz.
The NAV receiver NR 3320 - (02) is designed to receive VOR and LOC
signals on 200 channels in the frequency range between 108.00 MHz
and 117.95 MHz. It supplies the NAV composite signal to an external
VOR/LOC converter. Both NAV receiver include a glideslope receiver.
The glideslope receiver is designed to receive and convert GS signals
on 40 channels in the frequency range between 329.15 MHz and
335.00 MHz.
The NAV receiver NR 3330 - (01) is designed to receive and convert
VOR and LOC signals on 200 channels in the frequency range between
108.00 MHz and 117.95 MHz.
The NAV receiver NR 3330 - (02) is designed to receive VOR and LOC
signals on 200 channels in the frequency range between 108.00 MHz
and 117.95 MHz. It supplies the NAV-composite signal to an external
VOR/LOC converter.
qShort description of NAV receiver
The NAV receiver is designed as a single unit for installation in the in-
strument panel or operating console of aircraft. Its dimensions corre-
spond to the ARINC standard dimensions for control equipment. It is
held in place by four DZUS fasteners. All controls and indicators are lo-
cated on the front panel.
Operating Instructions
Issue 12/97 Page 7

The back side of the unit contains:
·the BNC-antenna jacks for the VOR/LOC-receiver
·the TNC-antenna jacks for the GS-receiver
·the 15-pole D-sub connector plug (female) for the outputs of the
VOR/LOC converter board (NR 3320 - ( 01) and NR 3330 -(01)
only)
·the 9-pole D-sub connector plug (female) for the I/O Outputs of
the RS 422 interface.
·the 25-pole D-sub connector plug (male) unit connector plug
The electronic elements of the unit are distributed among the following
boards, which are linked with one another by means of p.c. connectors:
1. Chassis board
2. VOR/LOC receiver board
3. VOR/LOC converter board
4. GS receiver board
5. Processor board
6. Display board
7. Interface board
The interface board and the processor board are mounted and fastened
by means of four screws on the frame of the control head. The display
board with the two liquid crystal displays is located between the front
plate and the panel.
BECKER NR 3320 - ( ) / NR 3330 - ( )
Page 8Issue 12/97
Entry of password to interlock the equipment configuration
Call up the “COdE” function using the MDE key. The following display
appears:
left LC-Display COdE
right LC-Display 0000
Set any 4-digit numerical code. Using the MHz frequency selector
switch, select the character (two digit left) and kHz frequency selector
switch, select the character (two digit right) . Store the numerical code
by pressing the STO key.
NOTE
As soon as a password is given a “0000" appears in the right
LC-Display when the service mode is called up. The numeri-
cal code must then be input using the MHz and kHz frequen-
cy selector switch and press the STO key. If the navigation
receiver detects a false numerical code, it automatically swit-
ches to the last mode. If the password is to be erased or chan-
ged, this is done by calling up the service mode using the old
password. The COdE function is then chosen and either a
”0000" is entered everywhere or the changed numerical code
is entered.
Operating Instructions
Issue 12/97 Page 25