Honeywell International Inc. RTA-50D Manuale Utente
MAINTENANCE MANUAL
965-1696
(7)
The RTA-50D VDR system requires an antenna for its RF inputs and outputs, a control head or
radio management panel, an audio input source and output sink for its analog voice functions,
and an ACARS MU or a CMU for its digital control and data functions. The VDR system can
also be connected to a CMC to transfer maintenance data. To give future support for VDL
Mode 3 data and enhanced voice features, the RTA-50D VDR requires interface to two sources
of aircraft ICAO address such as Mode S transponder Number 1 and Number 2.
radio management panel, an audio input source and output sink for its analog voice functions,
and an ACARS MU or a CMU for its digital control and data functions. The VDR system can
also be connected to a CMC to transfer maintenance data. To give future support for VDL
Mode 3 data and enhanced voice features, the RTA-50D VDR requires interface to two sources
of aircraft ICAO address such as Mode S transponder Number 1 and Number 2.
(8)
When operated in voice mode, the RTA-50D VDR supplies both 25-kHz and 8.33-kHz channel
spacing to meet European airspace requirements. The unit is fully interchangeable with
older ARINC 716 communications equipment for backward compatibility. Older equipment
includes the former Allied Signal or Bendix RTA-44A, RTA-44D, and RTA-83B VHF radios,
and Collins VHF 700 and VHF 700A radios.
spacing to meet European airspace requirements. The unit is fully interchangeable with
older ARINC 716 communications equipment for backward compatibility. Older equipment
includes the former Allied Signal or Bendix RTA-44A, RTA-44D, and RTA-83B VHF radios,
and Collins VHF 700 and VHF 700A radios.
D.
Equipment Required but Not Supplied (Subtask 23-20-59-870-003-A01)
(1)
Table 2 lists the equipment required for the RTA-50D VDR system that is not supplied
by Honeywell.
by Honeywell.
Table 2. Equipment Required but Not Supplied
Equipment
Description
Power source:
DC power supply of 27.5 volts
• Receive
1.5 AMP
• Transmit
8 AMP
Audio distribution system
Audio system with an input impedance of 200 to 10,000 ohms
Control panel
Provides remote control of frequency selection for 25-kHz or 8.33-kHz
channel spacing system operation (serial digital ARINC 429-7 and
ARINC 716 Supplement 8), power on/off, volume, and squelch control in
accordance with ARINC 716
channel spacing system operation (serial digital ARINC 429-7 and
ARINC 716 Supplement 8), power on/off, volume, and squelch control in
accordance with ARINC 716
MU/CMU/ATSU
Provides control and data source/sink when operating in the 750 data mode
Mount
Provides a means of mounting RTA-50D VDR in the aircraft
VHF antenna
Capable of receiving and transmitting VHF signals over a frequency range
of 118.000 to 136.975 MHz.
of 118.000 to 136.975 MHz.
Microphone
150-ohm impedance microphone (either carbon or transistor) operating
from approximately 16-volt power supply
from approximately 16-volt power supply
Cables and connectors
Necessary connectors and cables
2.
Configurations Available (TASK 23-20-59-870-802-A01)
A.
General (Subtask 23-20-59-870-004-A01)
(1)
Table 3 lists the available configurations of the RTA-50D VDR and the features contained in
each configuration. Table 4 contains a brief description of each feature.
each configuration. Table 4 contains a brief description of each feature.
EFFECTIVITY
ALL
23-20-59
Page 7
1 Mar 2011
© Honeywell International Inc. Do not copy without express permission of Honeywell.