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Marconi Selenia 915 Hf Airborne Transceiver Manual

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Page 1

HF AIRBORNE TRANSCEIVER 

Page 2


				            

Page 3

Extensive research and development
activities by Marconi  Selenia
Communications in the HF field have
led to the design and production of
advanced HF/SSB system for fixed-
wing aircraft and helicopters.
These transceivers provide
voice/data radiocommunications for
airborne applications over the 2 to
30 MHz frequency range.
Designed to meet the most
diverse requirements,they
provide various output power
possibilities (from 100 W to 400
W) and a wide range of
voice/data services in the
USB/LSB/AM and CW...

Page 4

SRT 170-M SRT 470-L 

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A typical HF system consists of the
following units:
¥Receiver/Exciter 
¥Power amplifier ¥Pre- post-selector (option,only
to meet severe co-location /
simop requirements).
¥Mounting tray.¥Antenna Tuning Unit (ATU)
See table above for a complete
list of available system
components.
The HF system provides simplex
receive/transmit operation over the
2 to 30 MHz range.
Mission-oriented data are stored in
the SRT-170/M including
frequency,mode,and time of
operation.
The ATU is able to store up to 256...

Page 6

OVERVIEW OF HF SYSTEMS COMPONENTS LRU
Systems Systems DescriptionPower SupplyDimensions (mm)      
TypesComponents Mass (Kg)
WHDM
SRT-170/M100W lightweight HF system.+ 28Vdc 
(SRT-170/L)Note that the SRT-170/L version 
is powered by 115Vac / 400 Hz 3-phase
RT-170/M100 W,lightweight,HF transceiver,includes internal 124193.5360.59
Receiver/Exciter and Power Amplifier
SP-1127/LATU for Wire antennas 1241934577
SP-1992ATU for Loop antennas1153233674
SRT-270/L200W HF system115Vac / 400 Hz 
3-phase...

Page 7

TECHNICAL CHARACTERISTICS
GENERAL
Frequency range2 to 29.9999 MHz
Tuning timeTypical 1s (including ATU);50 ms on learned channel
Modes of operation Simplex Rx/Tx on any available channel
ModulationClear and secure voice (USB/LSB/AM),CW (USB),Link-11 data (USB,LSB,ISB),TTY (USB),SELCAL 
(Arinc 714-6),ALE (8-FSK)
Preset channels 100 (stored in the Control Panel)
Frequency stability 1 part in 10
7
Power supply 115 Vac / 400 Hz 3-phase,
except for SRT-170/M powerd by +28 VDC 
Power consumption dependent on...

Page 8

Marconi Selenia Communications S.p.A.
Viale dellÕIndustria,4 - 00040 Pomezia RM
Tel.+39 06 910911 - Fax +39 06 9109339
e-mail:[email protected]
Via A.Negrone 1/A - 16153 Cornigliano GE 
Tel.+39 010 60021 - Fax +39 0106501897
Marconi Selenia Communications Ltd
Marconi House,New Street,Chelmsford,CM 1 1 PL - UK 
Tel.+44 1245 353221 - Fax +44 1245 287125
Marconi Selenia Communications GmbH
Gartenstrasse,106 - 71522 Backnang - Germany 
Postfach (P.O.Box) 1980 - 71509 Backnang 
Tel.+49 (0) 719113-0...
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