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Squelch

fixed in unit, defeatable with squelch switch

AGC characteristic from 5

V . . . 100 mV emf

≤

6 dB

Undesired radiation

≤

4 x 10

-10

watt

Distortion / m = 85%

≤

10 %

Frequency response audio channel relative
to 1000 Hz / 0 dB

≤

6 dB 350 Hz . . . 2500 Hz

≥

18 dB at 5000 Hz

Intermediate frequency

21.4 MHz

Rated audio output

Speaker

at 13.8 V operating voltage

≥

2.5 watt into 4

Ω

typ. 3 watt

at 10.0 V operating voltage

≥

1.5 watt into 4

Ω

Headphone

at 13.8 V operating voltage

≥

40 mW into 300

Ω

at 10.0 V operating voltage

≥

30 mW into 300

Ω

Audio power output unregulated

100 mV/30% mod. Ri

≥

10k

Ω

Auxiliary input

1 V eff. / 600

Ω

1.5.3

Transmitter specifications

Transmitter output

at 13.8 V operating voltage

≥

5 watt

at 10.0 V operating voltage
(Emergency operation)

≥

2 watt

Mode of modulation

amplitude modulation A3E

Modulation depth

≥

85%

≤

100 % (dynamic compressing)

Input voltage for m = 85 %

no overmoduIation at input voltages

dyn. mike

ca. 2mV Dynamic-Compressor

Standard mike

ca. 200 mV Dynamic-Compressor

Frequency deviation

≤

0.002%

Undesired radiation

≤

2.5 x 10

- 5

watts

Spurious emissions within the 108 - 117.95 MHz range

≤

2 x 10

- 7

watts

AR 3201 - ( )

Page 1-6

DV 28110.03/.04 Issue 04/92

Содержание AR 3201

Страница 1: ...eration Manual DV 28110 03 Issue 1 April 1992 BECKER FLUGFUNKWERK GMBH Baden Airpark B 108 D 77836 Rheinmünster Telephon 49 0 7229 305 0 E Mail info becker avionics de or support becker avionics de VHF Transceiver AR 3201 ...

Страница 2: ... F F E C T I V E P A G E S Page No I s s u e P a g e N o Issue Title 1 I 1 II 1 1 1 8 2 I 2 II 2 1 2 8 3 I 3 II 3 1 3 6 8 I 8 II A n n e x 1 t o 2 7 0 4 9 2 0 4 9 2 0 4 9 2 0 4 9 2 0 4 9 2 0 4 9 2 0 4 9 2 0 4 9 2 0 4 9 2 Copyright by Becker Flugfunkwerk All rights reserved ...

Страница 3: ...scription 1 2 1 4 Variants survey 1 3 1 5 Specifications 1 5 1 5 1 General data Transceiver 1 5 1 5 2 Receiver specifications 1 5 1 5 3 Transmitter specifications 1 6 1 5 4 Optional functions 1 7 1 6 Certification 1 7 1 7 Accessories 1 7 1 8 Scope of delivery 1 8 1 9 Software 1 8 AR 3201 DV 28110 03 04 Issue 04 92 1 I ...

Страница 4: ...Blank AR 3201 1 II DV 28110 03 04 Issue 04 92 ...

Страница 5: ...X 8 Circuit Diagrams X X 1 2 Purpose of equipment The VHF transceiver permits transceiver communication on 760 channels in the frequency range 118 000 MHz to 136 975 MHz with a channel spacing of 25 kHz It can also be limited to 135 975 MHz 720 channels by incorporating a different PROM Extensions for additional modes such as temperature and operating voltage measurements etc are provided for The ...

Страница 6: ...ering side of the audio module As of serial number No 86 the conversion is made by reconnecting a wire jumper on the component side of the audio module The microphone input is connected to a dynamic compressor which maintains the modulation depth constant over a microphone input voltage range of approx 40 dB The frequency indication is a liquid crystal display LCD The MHz and kHz frequency selecto...

Страница 7: ...ion If LCD illumination is required it can be connected either directly to the operating voltage or to a dimmer The standard version can be extened by optional voltage and temperature measuring facilities without affecting the airworthiness of the transceiver An optional voltage and temperature measurement circuit permits measurement of either two different voltages or two different temperatures o...

Страница 8: ...113 00000 000 397 172 910 AR 3201 3 no yes two different temperatures no yes 28114 00000 000 397 180 910 AR 3201 4 no no yes two different temperatures yes 28120 00000 000 767 018 910 AR 3201 10 no no no yes 28121 00000 000 767 026 910 AR 3201 11 yes yes no yes 28122 00000 000 767 034 910 AR 3201 12 yes no yes yes 28123 00000 000 767 042 910 AR 3201 13 no yes two different temperatures no yes 2812...

Страница 9: ...g temperature range D1 20 55 C Env Cat RTCA DO 160A shorttime temperature 70 C Altitude max D1 50000 ft Env Cat RTCA DO 160A Vibration MNO Env Cat RTCA DO 160A Dimensions Panel 60 6 mm x 60 6 mm Mounting depth 212 5 mm Weight 0 9 kg 1 5 2 Receiver specifications Type Receiver Single superhet Frequency range 118 000 MHz 136 975 MHz Channels 760 Channel spacing 25 kHz Sensitivity mod 1000 Hz 30 5µV ...

Страница 10: ...t 10 0 V operating voltage 30 mW into 300 Ω Audio power output unregulated 100 mV 30 mod Ri 10kΩ Auxiliary input 1 V eff 600 Ω 1 5 3 Transmitter specifications Transmitter output at 13 8 V operating voltage 5 watt at 10 0 V operating voltage Emergency operation 2 watt Mode of modulation amplitude modulation A3E Modulation depth 85 100 dynamic compressing Input voltage for m 85 no overmoduIation at...

Страница 11: ... for mobile aircraft radio communications until after January 1990 in accordance with the relevant regulations 1 6 Certification FTZ certification LB 393 83 LBA certification 10 911 76 Specification RTCA DO 156 RTCA DO 157 RTCA DO 160A EUROCAE ED 23 ED 24 ED 14A Performance classification D1 A MNO XXXXXXABABA 1 7 Accessories The following connectors are necessary for connecting the transceiver wit...

Страница 12: ...4 955 Bounceless pushbuttons Order No 724 742 278 1 8 Scope of delivery Screw block Order No 472 875 203 Spring washer Order No 213 126 213 1 9 Software Frequency synthesizer frequency storage and frequency display of the AR 3201 are controlled by a microprocessor The software used has been categorized to Function Criticality Category ESSENTIAL accordirig to the guide lines of RTCA DO 178 Uses ela...

Страница 13: ...3 2 4 4 IC connection 2 3 2 4 5 Panel lighting 2 3 2 5 Auxiliary audio input optional standard as of module No 471 2 4 2 6 Testing after installation 2 8 2 6 1 Ground testing with engine OFF 2 8 2 6 2 Ground testing with engine ON 2 8 Fig 2 1 Jumpers location for charging the microphone input from dynamic to standard microphone 2 3 Fig 2 2 Panel connection 2 4 Fig 2 3 Auxiliary audio input 2 4 Fig...

Страница 14: ...Blank AR 3201 2 II DV 28110 03 04 Issue 04 92 ...

Страница 15: ...cal installation 2 3 1 Mechanical installation VHF transceiver The VHF transceiver is designed for incorporating in an aircraft instrument panel in behind panel installation The circular cutout and the fastener holes must be drilled in accordance with the standard for small size instruments Location must be min 30 cm away from the magnetic compass of the aircraft to avoid the compass being affecte...

Страница 16: ...r supply i e so that the fuse blows leaving the unit undamaged If no fuse is provided the unit can be ruined In this case the unit is not covered by our guarantee Suitable type cable sets are available for aircraft wiring contact manufacturer CAUTION Never tie any aircraft wiring into the connecting lines In addition the connecting cable must not be put down together with line carrying pulsed info...

Страница 17: ...se of the headset together with an IC switch in the unit connector for the additioning wiring see aircraft wiring Fig 2 4 The normal communications position is the OFF position of the IC switch i e in the ON position communications operation is the same as before however with intercommunication between the two crew members without having to press the PTT button 2 4 5 Panel lighting The transceiver...

Страница 18: ...ng two units together finds application in aircraft having for instance only one transceiver and one NAV receiver When using the auxiliary audio input a 680Ω resistor must be switched to GND When circuiting units together 100Ω decoupling resistors must be included see following diagrams Output of the audio listening amplifier requires an audio input voltage of approx 1 V 600Ω Fig 2 3 Auxiliary aud...

Страница 19: ...Fig 2 4 Dimensions of VHF transceiver AR 3201 DV 28110 03 04 Issue 04 92 Page 2 5 ...

Страница 20: ...Fig 2 5 Aircraft wiring AR 3201 Page 2 6 DV 28110 03 04 Issue 04 92 ...

Страница 21: ...Fig 2 6 Wiring diagram AR 3201 with Speaker Junction AR 3201 DV 28110 03 04 Issue 04 92 Page 2 7 ...

Страница 22: ...ble tolerances at approx 14 V Make the test at engine cruising speed Carry out speech test at a long distance away from the ground station At engine cruising speed the cabin noise of the aircraft must only be heard muted thus making for clear intelligible conversation Hold microphone close to lips when speaking Switch on intercommunications by means of the IC switch when provided and carry out spe...

Страница 23: ... 4 3 5 1 Setting the emergency frequency on models with serial numbers up to 3999 3 4 3 5 2 Setting the emergency frequency on models with serial numbers of 4000 or above 3 4 3 6 LC display blinking 3 5 3 7 IC operation 3 5 3 8 Optional temperature voltage measurement 3 5 3 9 Auxiliary audio input optional standard as of module No 471 3 5 3 10 No channel freuency storage 3 5 3 11 Precautions 3 6 F...

Страница 24: ...Blank AR 3201 3 II DV 28110 03 04 Issue 04 92 ...

Страница 25: ...ontrol clock wise increases volume continuously ON OFF switch combined with squelch 3 position rocker switch Postion OFF VHF transceiver OFF Position ON VHF transceiver ON squelch OFF input noise audible Position SQL Transceiver ON Squelch ON Input limited to transmitters having a field strength exceeding the set squelch threshold AR 3201 DV 28110 03 04 Issue 02 92 Page 3 1 ...

Страница 26: ... selector switch in position A Then the desired memory location is selected using the channel selector switch and the Store button is pressed Stored channel frequencies remain in the memory even when the unit is powered down and can be immediately called up again after the unit has been switch on MHz frequency selector switch Rotary switch continuous Switches the MHz steps indicated by the frequen...

Страница 27: ... reads the stored channel frequency To select a channel frequency other than the stored channel frequencies position channel selector to A and then set the desired frequency by means of the MHz and kHz frequency selector switches 2 Set to frequency of local ground station and position VOL control to center position 3 Operate PTT key and call ground station For optimum intelligibility keep micropho...

Страница 28: ...g the emergency frequency 3 5 1 Setting the emergency frequency on models with serial numbers up to 3999 As already described in the operating instructions the transceiver automatically switches to the emergency frequency 121 500 MHz when the channel selector is positioned to A in switching the transceiver on To quickly switch to the emergency frequency in an emergency situation best procedure is ...

Страница 29: ...ent circuits note Temperature of voltage is measured continuously whereas display follows only after pressing the external pushbutton for approx 4 sec after which the previously set channel frequency appears NOTE Independent of the temperature or voltage measurement transceiver operation is available at the set channel frequency even when the instrument is displaying a tempe rature or voltage indi...

Страница 30: ...ing the message inaudible d Use suitable microphones or headset for aircraft only With certain aircraft types wood orfibre glass aircraft gliders and helicopters the signals transmitted by the unit s antenna may be picked up and enhanced by the integrated microphone amplifier feed back As a result the signal received by the flight control will be superimposed by whistles and or strong distortion T...

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