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Microwave Video Links | GPS Applications | Video Engineering | Custom Electronic Design

 
 
analogue Links:
Heli Tele Down Link
High Power Video Microwave
MegaSector
MicroSector
Portable HeliTele links
Miniature Video Microwave Receiver
Omni Antenna Receiving Station
Solid State Multi-channel RF switches
 
Digital Links
Intro
COFDM aircraft downlink
COFDM Receive
COFDM HeliTele
COFDM Hand Held RX
COFDM Up-Link
COFDM Roving Camera Link
COFDM Marine Link Capabilities
COFDM Digital Video Theory
 
Service and Repair
System Design
 

Heli Tele analogue down link
Aircraft Transtenna & Control Unit

The Transtenna transmitter and antenna unit together with the PSU/Telenav encoder and ARINC
Controller (shown above), provides a full installation for a microwave downlink. The PSU assembly
unit measures just 240mm x 150mm x 100mm and incorporates the power supply converter for the
Transtenna and video processing systems, Telenav GPS encoder and encryption facility, if
required.

The Encoder unit converts power from the aircraft supply and takes video from the on-board
camera. Video outputs are also available for viewing the camera images on standard monitors.
A comprehensive control allows individual operation of the transmission and encryption facilities.
Installation is simple with minimal wiring. A short RF feeder to the actuator mounted antenna and a
single umbilical cable and coaxial video feed complete the installation between the PSU/Telenav
unit and the transmitter.


Telenav Encoder & Power conditioning unit


ARINC Encryption & Transmission controller


Actuator mounted LHC Omni antenna
Specifications:
Transmit o/p 40dBm – 42.3dBm (10 – 15 Watts) FM analogue
Frequency Multi channel S band available
Antenna 5dBi LHC/RHC omni directional
Power i/p 18 – 30 Volts dc input. Output: 12 volts to Transtenna and video processors
Video Composite video PAL
Audio Two channels at Mic or line input (specified as required)
Control Transmit On/Off, Encrypt On/Off
GPS Internal 12 channel receiver with standard feed from external antenna (GPS splitter available)
Data GPS data message from internal GPS receiver - NMEA 0183 standard
Dimensions PSU 240mm x 150mm x 100mm (approx) Weight 1.6 Kg (approx)
TX 220mm x 105mm x 85mm (approx) Weight 1.8 Kg (approx)
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