Evenlode Lite
Your Best In Class Entry Level Data Link
- Fixed frequency bands
- COFDM modulation based on DVB-T standards
- Ultra-low latency
- 4k HD video resolution*
- 1 x HD or 1 x SD video stream
- Low level Encryption or 256 AES Encryption**
- Declaration Design Performance & Interconnecting Diagram
- System installation and user manuals
- ITAR free system
* Optional upgrade
**Subject to export approval
Product Description
Evenlode Lite is the latest offering in the Evenlode Video and Data downlink family. The system offers an entry level end-to-end video downlink solution for aircraft Integrators requiring a video downlink for ISR aircraft upgrades or capability uplifts. Evenlode Lite retains all of the reliability and performance expected from the Evenlode ISR video downlink family.
Evenlode Lite retains all of the reliability and performance expected from the Evenlode ISR video downlink family. An Evenlode lite, consists of an Air Data Terminal (ADT) used to downlink a single video, audio, GPS, KVL metadata*** and telemetry data from the air platform to the Ground Data Terminal (GDT).
Evenlode Lite is a series of equipment from the Evenlode Data Link range providing capability for a range of Information Exchange Requirements; equipment may be deployed for police, border guard and search and rescue
applications. Evenlode Lite has a defined upgrade path; from Evenlode Lite to Evenlode I, II and Evenlode III as user requirements develop building on previously installed hardware. Evenlode Lite operates on several fixed frequency bands, utilising Coded Orthogonal Frequency Division Multiplexing (COFDM) technology with enhanced modulation techniques. COFDM has been chosen for this Digital Video Broadcasting (DVB) system because of its broadcast quality capability and tolerance to multi-signal paths.
Evenlode Lite utilises the latest H.265 ECS video/audio & data encoder and decoder offering multiple video formats and resolutions across an ultra-low latency link securely with sub-cipher or full AES-256** encryption.
The Evenlode Lite ADT equipment is DO-160G certified and may be installed as a fixed stackable unit or as individual modules in the aircraft, employing a single 2dBi transmit antenna. Evenlode Lite Ground Data Equipment is delivered in a single softcase enclosure employing a single 7/8dBi* receive antenna. Declaration Design Performance and Interconnecting Diagrams along with user and installation manuals are included in the Evenlode Lite solution.
Technical Specifications
Mechanical
139 mm x 145 mm x 218 mm, 3.6 kg approx. (ADT)
218 mm x 88 mm (2U) x 350 mm, 3.4 kg approx. (GDT)
Power Requirements
135 W 11-15, 22-30 VDC (ADT) 80W typical, 28 VDC nom (GDT)
Frequency
1.4 GHz, 2.3 GHz, 3.3 GHz, 3.5 GHz
Link Data Rate
5.5 to 21 Mbps
Guard Interval
1/4, 1/8, 1/16, 1/32
Modulation
DVB-T COFDM ETSI EN 300 744, QPSK, 16QAM
Tx Video Formats
1920 x 1080p 60/59.94/50/30/29.97/25/24/23.98, 1920 x 1080i 60/59.94/5, 1440 x 1080i
60/59.94/50, 1280 x 720p 60/59.94/50/30/29.97/25/24/23.98, 720 x 480i 59.94, 720 x 576i 50
Video Coding
H.264 compression standard in accordance with ITU-T H.264 and ISO/IEC 23008-2:2017, H.265 (HEVC) compression standard in accordance with ITU-T H.265 and ISO/IEC 14496-10. Group of Pictures (GOP) GDR, I-only, I&P frames and I, B&P frames
Data Interfaces
ASI (ADT)
Audio
O/P (x1) 600 ohm unbalanced (stereo) output level 0 bBm
Telemetry Data
Port RS232/485
GPS Input/Output
Line-powered GPS Active antenna, ARINC429 Interface or direct NMEA0183 feed also available (ADT) O/P Port RS232 (GDT)
Encryption
AES256** or Substitution Cipher Encryption
Control Port
RS232
Environmental
-20°C to +55°C temp, 0-90% relative humidity noncondensing, 25000 ft altitude operating conditions (ADT)
Certification
Tested to RTCA DO160G Standards (ADT)
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