ABonAIR AB310

Spoločnosť ABonAir pracuje v oblasti bezdrôtových prenosových systémoch už dve desaťročia - vyvíjala a dodávala bezdrôtové technológie popredným svetovým značkám. Od roku 2007 spoločnosť ABonAir začala dodávať profesionálne bezdrôtové prenosové systémy aj pod vlastnou značkou. Naša spoločnosť AVsystems sa stala distribútorom tejto značky a prinášame tieto profesionálne riešenia aj do SR.

ABonAIR AB310 - profesionálny bezdrôtový prenosový systém pre HD/SD video

Základné informácie:

• štandardná prenosová vzdialenosť 450 m , po doplnení prídavnej antény až 2,5 km !
• oneskorenie v "normal" režime 200 msec, v režiem "low delay"  len 90 msec
• podporované formáty :   1080p, 1080i, 720p, NTSC, PAL (59.94Hz, 60Hz, 50Hz, 30Hz, 25Hz, 24Hz, 23.97Hz),  HD - 1920 x 1080, 1280 x 720 , SD - 720 x 576, 720 x 480
• kodek : H.264
• vstup/výstup BNC: 1x SD/HD-SDI , 1x kompozitné video, XLR audio vstup - +48V phantom
• možnosť ovládania videokamery diaľkovo cez CCU ! ( data input )

Verzia AB312 ma naviac vstup pre "tally" kontrol.

Overview

Key Features

• Full SD/HD support – 1080p, 1080i, 720p, NTSC, PAL 
• H.264 Encoding / Decoding for best picture quality
• Low delay mode – 90ms
• SD/HD-SDI or Composite inputs
• Camera Control Unit (CCU)
• Unlicensed frequencies (5Ghz, 2.4Ghz)
• Other frequencies available on request
• Distance up to 1000 meters
• Full Duplex Data link up to 1 Mbps
• Low power consumption (10 W)

ABonAir’s AB310HD is a top-of-the-line wireless video system enabling camera teams to send video content directly from a camera to a news truck and over the air, without complexity and time-consuming tasks of cable connections.

The AB310HD supports HD and SD in all resolutions and frame rates, a low delay mode of only 90msec, Tally-Cue light, Data channel for Camera Control Unit (CCU), bi-directional data link and more. The system allows video transmission of up to 1000 meters, while consuming only 10W of power.

All these features are delivered in a compact, lightweight form-factor that attaches easily to any professional camera.

ABonAir’s unique algorithms provide unmatched picture quality, stability and range. Built on ABonAir’s video streaming technology with its continuous bit-rate adaptation mechanism, and a set of unique algorithms (including: TrueVideoQOS©, dynamic/adaptive transrating, buffer management, variable CBR©, Flexrate©, Superframe, Re-Transmit and others), the AB310HD is the best wireless video solution available today.

ABonAir’s professional microwave HD links utilize the new H.264 Codec technology that enables 2X compression over the old MPEG-2 while maintaining the same picture quality. This immediately translates to greater distances at higher PSNR quality measures. AB310HD™ utilizes OFDM radio that assures robust and reliable radio links under the most difficult conditions.

ABonAir’s system has the lowest power consumption in the industry, achieving more airtime per battery than any other system. The AB310HD can be used in a variety of configurations that are set either automatically, by the system, according to operational conditions, or manually configured according to user requirements.

Features

Full SD/HD 
The system supports all the resolutions: 1080p, 1080i, 720p, NTSC, PAL at all frame rates 60fps, 59.94, 50, 30, 29.97, 25 and 24.

Unlicensed frequencies 
(5Ghz, 2.4Ghz)  ABonAir products utilize the unlicensed frequencies allocated world wide for public use, this enable any camera crew to operate their system anywhere world wide without the need to buy specially allocated frequencies at high costs.

Low Delay mode 
This mode enables the user to reduce the overall system delay to 90msec when needed by the use case. In cases where low delay is not needed, operator can select Normal mode to increase range and picture quality. 

Camera Control Unit 
In multi-camera productions, when CCU functionalities like color adjustment and others are required, the CCU feature enables the center production team to control the camera wirelessly up to 2 km.

Tally – Cue Light 
The system supports both internal (in CCU signal) and external Tally light to be used with either and integral Tally in the CCU or a more complex external Tally system for multiple camera support.

Automatic set up
The system is fully automatic and set the operation parameters for the users automatically, based on the field conditions. This releases the cameraman to do his main task of shooting and avoid spending time on difficult system configuration. Among the automatically configured parameters are RF channel, Encoding bit rate, OFDM modulation mode, Forward Error Correction ratio and others.

Antennas options - Distance up to 2500 meters 
ABonAir offers a wide selection of Antennas, either Omni, Sector or Directional that enable user to reach far up to 2.5Km and beyond for special filming scenarios.

Data link 
For special complex system usage the ABonAir system has a full duplex data link in parallel to the video that can support up to 1 Mbps of data. This enables users to transfer any application specific data from side to side.

Audio 
Audio can be either embedded in the HD-SDI video stream directly from the camera or a microphone can be connected to one of the two audio inputs available in the system. The system also support phantom power microphone with 48V supply.

Low power consumption (12 W) 
With low power consumption of only 12W users can operate the system for few hours with a regular camera battery.

Technology

Full Duplex Radio
Both the Transmitter and the Receiver can send/received control information to each other, this enable acknowledgment on each pixel transmitter over the air hence assure 0 errors.  Full Duplex also enables automatic system configuration based on changing environment condition to ensure robust link performance.

H.264 CODEC
Utilising the advanced H.264 Encoding assure the for best picture quality
possiable in the current environment at all time. The H/264 Encoder is 2X-3X better then MPEG-2 and thus enable higher picture quality over the same radio conditions.

OFDM Radio
ABonAir system utilizes the robust OFDM radio that assure radio coverage even in the most difficult scenarios. Frequency hopping.

Re-transmit Algorithm
Re-transmit algorithm increase channel capacity by almost 2X in the same radio conditions.
- FEC uses redundancy of 50%-100% and sometimes even more.

- Typical BER in OFDM systems is 1%
- Not Knowing where and when the 1% errors are forces FEC on all the data.

ABonAir’s Solution: 
-Full-Duplex Data System with packet acknowledgement mechanism to identify errors and fix them quickly, before frame is present • forward error correction (FEC) or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels • With Re-Transmit algorithm we get 98% more throughput over FEC system in same 
  conditions à Picture quality is much better!

ariable-CBR Algorithm
Wireless link throughput is not consistent and is affected by distance, movement of Tx/Rx, external interferences, environmental conditions (concrete, 
rain, forest), etc.ABonAir’s Solution: 
An algorithm continuously adapts
the encoder parameters based on wireless link 
quality to fit wireless throughput.
Result à Video SNR is much better
Adaptive bitrate Algorithm:

Buffer management Algorithm
• Both Tx and Rx store slices of frame
• Buffer status indicates overall system performance, 
  link stability, wireless conditions etc.  mart management of Buffers, and adaptation of Modem & CODEC parameters based on Buffer status will assure quality video streaming Result à avoiding overflow/underflow of frames in buffer, resulting in improved video quality (Minimize Skip/Repeat).

Additional algorithms Algorithm
• Flexrate© Algorithm – continuously changes modem parameters based on PER   and other system indicators for best net throughput. • Time Stamp and Jitter Attenuation
• Superframe – specifically designed MAC layer for Video/Audio over wireless PHY. • TrueVideoQOS
• Dynamic/Adaptive Transrating Embedded security AES128All transmitted data is encrypted by AES 128 to assure maximum privacy and exclusivity 
of the transmitted content.

Spcecification

Performance
Distance:Up to 2.5 km
Low Delay Mode: 90 msec
CCU: Yes
Data Link: 1 Mbps
Encryption: AES 128 Bit
Antenna Diversity Selection Manual or automatic
Received Signal Indication 6 LED display
Tally – Cue Light Yes (AB312HD only)

Radio
Modulation: OFDM 
BPSK, QPSK, 16QAM, 64QAM 
FEC: 1/2, 2/3, 3/4, 5/6, 7/8
Frequency Range: 2Ghz band - 2.4 - 2.483 GHz
5Ghz band - 4.9 - 5.875 Ghz RF Output Power:
Preset: 50 mW to 350 mW
Antenna Connector: N - type

Video    
Video Formats: 1080p, 1080i, 720p, NTSC, PAL
(59.94Hz, 60Hz, 50Hz, 30Hz, 25Hz, 24Hz, 23.97Hz)
Frame Size:HD - 1920 x 1080, 1280 x 720 
SD - 720 x 576, 720 x 480
Codec: H.264
GOP Size/Types:I Frame or IP 
Connector:SD/HD-SDI, Composite
75 Ohm BNC connector

Audio    
Channels: Mic./+48v Mic./line stereo pair
Embedded SDI
Analog Range:  -60 dBm to +18 dBm
Sampling Rate: Analog 48 KHz
Embedded SDI at 48 kHz
Crosstalk: Better than 60 dB
Connector: Two 3 Pin XLR Connectors
CCU / Data Channel / Telemetry
RS422/RS485:    Bidirectional full duplex data 
link at 1 Mbps
TX Status: RF output power, antenna diversity mode, video format, video bit rate and system alarms

Power
Input Voltage Range: 10 to 14 Volts DC
Under/Over voltage protection
Power Consumption:    10 Watts

Mechanical    
Size: 21cm x 10cm x 4cm
Weight: 0.9 Kg (2lbs)
Environmental: Operating range:  -10°C to +45°C 
Humidity: 95%
Tx Form Factor: Camera mount - IDX or Anton Bauer