Becker Avionics RT320911 Aviation Communications Transceiver User Manual TIT E 03

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Document Description	User Manual
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Document Type	User Manual
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Date Submitted	1999-10-05 00:00:00
Date Available	1999-11-04 00:00:00
Creation Date	0000-00-00 00:00:00
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Document Lastmod	1999-03-12 08:01:53
Document Title	TIT-E-03.PDF
Document Creator	Corel Ventura
Document Author:	Becker Flugfunk

VHF
Transceiver
RT 3209 - ( )
Installation and Operation
Manual
Issue
DV 60602.03
August 1997
BECKER FLUGFUNKWERK GMBH • Baden Airpark • P.O. Box 34
D-76549 Huegelsheim • Telephone 07229 / 305-0
FIRST ISSUE AND CHANGES
Issue . . . . . 1 . . . . . August 1997
LIST OF EFFECTIVE PAGES
Page No.:
Date :
Title
08/97
1 -I - 1-II
1-1 - 1-10
08/97
08/97
2-I - 2-II
2-1 - 2-8
08/97
08/97
Page No.:
© by Becker Flugfunkwerk
All rights reserved
Date :
RT 3209 - ( )
Table of contents
Section
1.1
1.2
1.3
1.4
1.5
1.5.1
1.6
1.6.1
1.6.2
1.6.3
1.7
1.8
1.9
1.10
1.11
Introduction
Purpose of equipment
General description
Variants survey
Technical data
Power supply
General data
Dimensions Weight, Fuse
Receiver data
Transmitter data
Software
Approval and Regulations
Environmental Qualification Form
Scope of delivery
Accessories
DV 60602.03/.04 Issue 08/97
GENERAL DESCRIPTION
Seite
1-1
1-1
1-2
1-3
1-3
1-3
1-4
1-4
1-5
1-6
1-7
1-7
1-8
1-9
1-9
Page 1-I
RT 3209 - ( )
Blank
Page 1-II
DV 60602.03/.04 Issue 08/97
RT 3209 - ( )
Section
1.1
GENERAL DESCRIPTION
Introduction
The following manual describes the VHF transmit/receiver RT 3209 - ( ). The manuals DV 60602.03
("Installation and Operation") and DV 60602.04 (Maintenance and Repair") contain the following
section :
Section
1.2
DV 60602.03
DV 60602.04
General Information
Installation
Operation
Theory of operation
Maintenance and Repair
Illustrated Parts List
Modification and Changes
Circuit Diagrams
Purpose of equipment
This remote-control VHF-transceiver RT 3209 - ( ) is controlled by a CU 5209 - ( ) control unit (or equal).
The transceiver enables voice communication on 760 channels in the 118.000 MHz to 136.975 MHz
range with a channel spacing of 25 kHz. It complies with the requirements of ICAO Annex 10 valid
from 01.01.1995.
DV 60602.03/04 Issue 08/97
Page 1-1
RT 3209 - ( )
1.3
General description
The transceiver is designed for installation in the avionics compartment.
The following are mounted on the connector end.
The equipment connector for connecting to the aircraft system.
The antenna socket for connecting the antenna.
The electronic system of the unit consists of the following circuit boards, which are connected to each
other by connectors.
1. Audio board
2 Connector board
3. Receiver board
4 Transmitter board
5. Processor board
The processor board is secured to the front panel by three bolts. The microcontroller as well as the
necessary storage and peripheral components are located on the processor board.
The VHF transceiver is fitted with a single superheterodyne receiver. A squelch (muting) circuit
suppresses transmitters or disturbances below a certain field strength. The switching threshold can
be set. The squelch function can also be switched off.
The transmitter is designed to be wideband over the 118.000 MHz to 136.975 MHz range. The sidetone
is automatically switched to the headphone output during transmission.
The oscillator frequency of the receiver and the transmitting frequency of the transmitter are generated
by a VCO (voltage controlled oscillator). This is monitored by a digital frequency evaluation circuit.
This digital frequency processing operates in conjunction with a microprocessor.
The microphone inputs are designed for parallel both dynamic and standard microphones. The inputs
are connected to a dynamic volume compressor which keeps the modulation voltage constant over a
wide input voltage range.
Aircraft internal communication is possible in the IC (intercom) mode. Activation is by means of an
external IC button (or switch) which is to be connected to the equipment connector.
The AF auxiliary input enables AF signal switching of auxiliary units in the aircraft. The switched
AF signals can, however, only be monitored in the reception mode.
Page 1-2
DV 60602.03/04 Issue 08/97
RT 3209 - ( )
Special functions
The transceiver contains some special functions which can be set in the service mode in
conjuntion with the control unit CU 5209 - ( ).
1.4
The squelch sensitivity, IC, sidetone and audio external input volume
The frequency setting can be inhibited. The transceiver then operates only on the
frequencies stored in the storage channels.
The storage of frequencies in the storage channels can be inhibited.
Access to the service mode can be interlocked with a 4-digit password.
Variants survey
Type designation
Part No.:
Transmitter output
Power supply voltage
RT 3209 - (11)
0505.668-910
≥ 6,5W
13,75V
≥ 10W
27,5 V
60602-0000.000
1.5
Technical data
1.5.1
Power supply
Nominal supply voltage
Supply voltage range
13.75 V.d.c.
12.4 V to 15.1 V
Emergency operation (10.0 V)
Good intercom
Nominal supply voltage
Supply voltage range
27.5 V.d.c.
24.8 V to 30.3 V
Emergency operation (20.0 V)
Good intercom
or
Power consumption
Standby" reception mode
Reception mode
Transmission mode
DV 60602.03/04 Issue 08/97
≤ 100 mA
≤ 530 mA
≤ 2.5 A
Page 1-3
RT 3209 - ( )
1.6
General data
Frequency range
118.000 MHz to 136.975 MHz
Number of channels
760
Channel spacing
25 kHz
Storage temperature range
-55°C to +85°C
Operating temperature range as per
EUROCAE/RTCA ED-14C/DO-160C
-20°C to +55°C short-time +70°C
Operating altitude as per
EUROCAE/RTCA ED-14C/DO-160C
50 000 ft
Vibration as per
EUROCAE/RTCA ED-14C/DO-160C
Cat. NM
Humidity as per
EUROCAE/RTCA ED-14C/DO-160C
Cat. A/ +50°C: 95%, 48 h
1.6.1
Dimensions Weight, Fuse
Front panel
139 mm x 50 mm
Depth of transceiver with mounting plate
253 mm
Weight
1,2 kg
Fuse internal
4 A automatic cut-out
Page 1-4
DV 60602.03/04 Issue 08/97
RT 3209 - ( )
1.6.2
Receiver data
Type of receiver
Single superhetrodyne receiver
Sensitivity
≤ 5 µV EMF for 6 dB = SINAD
(mod. 1000 Hz/30%)
IF bandwidth
≥ ± 8 kHz at 6 dB attenuation
Selectivity
≥ 40 dB at ± 17 kHz
≥ 60 dB at ± 25 kHz
Squelch
Can be adjusted and switched off
AGC characteristic for
5 µV to 100 mV EMF
≤ 6 dB
Distortion m = 85%
≤ 15%
Audio frequency response
relative to 1000 Hz
≤ 6 dB 350 Hz to 2500 Hz
≥ 18 dB at 4000 Hz
Intermediate frequency
21.4 MHz
Rated output
for speaker operation
at 13.75 V nominal operatingvoltage
at 10.0 V operating voltage (emergency mode)
≥ 3 W into 4 Ω
≥ 1.5 W into 4 Ω
with headset connected
at 13.75 V nominal operating voltage
at 10.0 V operating voltage (emergency mode)
≥ 100 mW at 600 Ω
≥ 30 mW at 600 Ω
Audio auxiliary input
adjustable (regardless of volume)
DV 60602.03/04 Issue 08/97
1 V to 8 V at 600 Ω ± 10%
Page 1-5
RT 3209 - ( )
1.6.3
Transmitter data
Transmitter output RT 3209 -(11)
at 27.5 V nominal operating voltage
at 20.0 V operating voltage
(emergency mode)
≥ 10 W at 50 Ω
≥ 10 W at 50 Ω
Transmitter output AR 3209 -(11)
at 13.75 V nominal operating voltage
at 10.0 V operating voltage
(emergency mode)
≥ 6.5 W at 50 Ω
≥ 2 W at 50 Ω
Frequency tolerance
≤ 15 ppm
Duty cycle
1:4 (Min)
Type of modulation
A3E amplitude modulation
Modulation factor
≥ 70% to ≤ 99% (dynamic
compressor)
Distortion at 70% modulation
≤ 15%
Modulation bandwidth
350 Hz to 2500 Hz
Frequency response
-6 dB (relative to 1 kHz/0 dB)
Input voltage (m = 70%)
Dynamic microphone
≤ 2 mV symmetrical 200 Ω
(dynamic compressor)
Standard microphone
≤ 120 mV 150 Ω
(dynamic compressor)
FM deviation with modulation
m = 70% f = 1.25 kHz
≤ 3 kHz
Sidetone
true, adjustable
Automatic shutdown on short
circuit of transmit button
after 2 mins of continuous
transmission, the transmitter
shuts down. Activated by releasing
the transmit button and re-pressing.
Page 1-6
DV 60602.03/04 Issue 08/97
RT 3209 - ( )
1.7
Software
The frequency synthesizer and the frequency memory are controlled by a microprocessor.
The associated software was classified as software level 2 in accordance with the guidelines of
EUROCAE/RTCA document ED12A/DO-178A:
1.8
Approval and Regulations
LBA-No.
10.911/99JTSO
BAPT-No.:
A133570J
Regulations
JTSO - 2C37d, ED-23A, Equipment Class 4
JTSO - 2C38d, ED-23A, Equipment Class C
EUROCAE/RTCA ED-14C/DO-160C
BAPT
FTZ 17TR2010
Software
EUROCAE/RTCA ED12A/DO-178A level 2
Environmental condition
D1-BA(MN)XXXXXXZBABATAXXX
DV 60602.03/04 Issue 08/97
Page 1-7
RT 3209 - ( )
1.9
Environmental Qualification Form
The following performance standards under environmental test conditions have been established in
accordance with the procedures set forth in EUROCAE/RTCA Document No. ED-14C/DO-160C.
Environmental condition
ED - 14C
DO - 160C
Category
Temperature
4.0
D1
Low operating temperature
4.5.1
Performance
- 20° C
Low ground survival
(storage temperature)
- 55° C
High short-time operating temperature
4.5.2
70° C
High operating
temperature
4.5.3
+ 55° C
High ground survival
(storage) temperature
85° C
Min. operating pressure
(equivalent altitude)
4.6.1
Temperature variation
5.0
Humidity
6.0
Shock :
7.0
Operational shocks
7.2
11 ms at 6 G for all three
dimensional axes
Crash safety shocks
7.3
11 ms at 15 G for all three
dimensional axes
Vibration
8.0
MN
Magnetic effect
15.0
Deflection of 1° of compass at
a distance of ≥ 30 cm
Power input variation
16.0
The equipment functions on a
10-volt emergency power
supply
Resistance to voltage
spikes on equipment
power leads
17.0
Audio-frequency
conducted susceptibility
18.0
Susceptibility to induced
magnetic and electric •
fields at 400 Hz
19.0
Radio-frequency
interference
susceptibility
20.0
Spurious RF emissions
21.0
Page 1-8
50.000 ft.
48 hrs at up to 50° C and
95% relative humidity
DV 60602.03/04 Issue 08/97
RT 3209 - ( )
1.10
Scope of delivery
RT 3209 - (11) VHF transceiver
Stock No. 0505.668-910
Operating instructions
Stock No.
1.11
Accessories
Unit connection
Cable socket 25 pin
Connector housing
Stock No. 0725.021.277
Stock No. 0775.479-277
Antenna plug
Stock No. 0725.706-277
Manuals
Installation and Operation
Stock No. 0511.560-071
Maintenance and Repair
Stock No. 0511.579-071
DV 60602.03/04 Issue 08/97
Page 1-9
RT 3209 - ( )
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Page 1-10
DV 60602.03/04 Issue 08/97
RT 3209 - ( )
Table of contents
Section
II
2.1
2.2
2.2.1
2.2.2
2.3
2.3.1
2.4
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.5
2.5.1
2.5.2
General
Testing before installation
General
Visual examination
Mechanical installation
Mechanical installation of transceiver.
Installation wiring
General
Microphone connection
Speaker connection
Headphone connection
Intercom mode "IC connection".
Auxiliary" audio input
Setting the squelch sensitivity
Setting the sidetone volume
Internal automatic cut-out
Testing after installation
Ground test with engine shut down
Ground test with engine running
2-1
2-1
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-2
2-2
2-3
2-3
2-3
2-4
2-4
2-7
2-7
2-7
Fig. 2-1
Fig. 2-2
Fig. 2-3
Internal automatic cut-out
Mounting dimensions transceiver
Interwiring of the transceiver RT 3209 - ( ) with control unit CU 5209 - ( )
2-4
2-5
2-6
DV 60602.03/.04 Issue 08/97
INSTALLATION
Seite
Page 2-I
RT 3209 - ( )
Blank
Page 2-II
DV 60602.03/.04 Issue 08/97
RT 3209 - ( )
Section
2.1
II
INSTALLATION
General
The installation of the transceiver depends on the type of aircraft and its equipment. Therefore, only
general information can be given in this Section.
2.2
Testing before installation
2.2.1
General
Before installing the transceiver in an aircraft, inspect the unit for signs of transport damage.
2.2.2
Visual examination
Before commissioning, visually examine the unit paying particular attention to the following defects :
1. Dirt, dents, scratches, corrosion or broken attaching parts, damaged paintwork on housing, parts
of the housing .
2. Dirt or scratches on the identification plate, or inscriptions.
3. Dirt, bent or broken pins, displaced inserts of plugs and sockets.
2.3
Mechanical installation
2.3.1
Mechanical installation of transceiver.
The transceiver is designed for installation in an avionics compartment. To do this, the mounting plate
must first be secured to an appropriate point in the avionics compartment using five bolts. The
installation dimensions are given in Fig. 2-1. The transceiver is then pushed into the mounting plate
and locked in place by two quick-release bolts.
DV 60602.03/04 Issue 08/97
Page 2-1
RT 3209 - ( )
2.4
Installation wiring
2.4.1
General
The installation wiring is shown in Fig. 2-3.
(a) Use only cable which is fit for use in aircraft (self extinguishing). AWG 20 for power supply and
AWG 22 for other cables.
(b) Fit rubber sleeves over the solder joints on the equipment connector.
(c) Protect the power supply with a 7,5 A fuse or circuit breaker.
NOTE
The transceiver is protected internally by a 4 A fuse.
(d) No HF cables should be included in the cable harnesses of the system and the routing of connecting
cables alongside cables which carry audio power or pulses should also be avoided.
(e) Carefully check the wiring before switching on the unit and check particularly that (+) and (-) have
not been reversed.
2.4.2
Microphone connection
The transceiver enables a maximum of two dynamic microphones and two standard microphones (d.c.
supply) to be connected at the same time.
NOTE
The dynamic mike input sensitivity can be changed in the service mode.
2.4.3
Speaker connection
A 4 to 8 Ohm speaker can be connected to audio output P2- Pin 1 AF-asym.
CAUTION
The magnetic field of a speaker influences the magnetic compass. When choosing the
mounting point, a minimum distance of 1.3 m must be maintained between the speaker
and the magnetic compass.
2.4.4
Headphone connection
Up to two headphones with an impedance of 600 Ohm can be connected to the audio output P2 Pin 2 AF-HI/LO and Pin 3 AFLO.
Page 2-2
DV 60602.03/04 Issue 08/97
RT 3209 - ( )
2.4.5
Intercom mode "IC connection".
The intercom mode is designed for aircraft with a high noise level and assumes operation using
headsets. Additional wiring on the equipment connector with an IC switch is necessary (refer to
interwiring diagram).
The normal R/T communication takes place with the IC switch in the OFF position. When the IC switch
is set to ON, R/T communication can be carried on as before but intercommunication is also possible
between two crew members. The IC is switched off during transmission. The IC volume can be changed
in the service mode.
2.4.6
Auxiliary" audio input
The AF-AUX (P2 Pin 4) auxiliary audio input enables the switching of audio signals from other
equipment in the aircraft. The switched-in audio signals can, however, only be monitored in the
reception mode. The facility to switch two units together will be used particularly in those aircraft which
are fitted with a VHF transceiver and an NAV receiver. An audio input voltage of 1 to 8 V, 600 Ohm is
necessary for modulation of the audio amplifier (can be adjusted in the "Service" mode).
2.4.7
Setting the squelch sensitivity
The sensitivity of the squelch can be directly set on the VHF transceiver at any time in the SqL function
service mode.
DV 60602.03/04 Issue 08/97
Page 2-3
RT 3209 - ( )
2.4.8
Setting the sidetone volume
The sidetone volume can be directly set on the transceiver at any time in the SIDE function service
mode.
2.4.9
Internal automatic cut-out
The transceiver is fitted with an automatic cut-out . The released automatic cut-out is reactivated by
means of a peaked object.
Fig. 2-1 Internal automatic cut-out
Page 2-4
DV 60602.03/04 Issue 08/97
RT 3209 - ( )
Fig. 2-2 Mounting dimensions transceiver
DV 60602.03/04 Issue 08/97
Page 2-5
RT 3209 - ( )
Fig. 2-3 Interwiring of the transceiver RT 3209 - ( ) with control unit CU 5209 - ( )
Page 2-6
DV 60602.03/04 Issue 08/97
RT 3209 - ( )
2.5
Testing after installation
2.5.1
Ground test with engine shut down
(a) After installation of the unit, measure the antenna tuning between the base of the antenna and the
antenna connecting cable using a VHF reflection-coefficient meter (voltage standing wave meter).
(b) The VSWR (voltage standing wave ratio) over the complete frequency range of the unit shall be
within 3:1. If this matching value is incorrect, this indicates a mismatch, caused for example by an
incorrect or unsatisfactory counterpoise, a cable with an impedance which deviates significantly
from 50 Ohm or an incorrectly tuned antenna.
(c) After the antenna measurement, check the readability by carrying out a speech test with a ground
station.
2.5.2
Ground test with engine running
(a) With the engine running at cruising speed check that the aircraft power supply is within the
permissible tolerances.
(b) When performing the succeeding speech test, ensure that the distance from the ground station is
as great as possible, at least 100 m. With the engine at cruising speed, the cabin noise of the
aircraft should be only slightly transmitted and communication should be clear and distinct. Hold
the microphone close to the lips when speaking.
(c) Switch on the aircraft intercom using the IC switch (if fitted) and carry out a speech test with the
engine running at cruising speed. If necessary, adjust the IC volume (refer to the service mode in
the operating instructions (section 3)).
(d) Switch on the squelch switch and check the squelch function. The point at which the squelch
operates is set in the service mode (refer to operating instructions, section 3).
DV 60602.03/04 Issue 08/97
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RT 3209 - ( )
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DV 60602.03/04 Issue 08/97

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Creator                         : Corel Ventura
Create Date                     : Freitag, 12. März 1999 07:51
Title                           : TIT-E-03.PDF
Author                          : Becker Flugfunk
Producer                        : Acrobat PDFWriter 3.02 für Windows
Subject                         : 
Modify Date                     : 1999:03:12 08:01:53
Page Count                      : 24

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