eatures:  

1. The head-end system adopts the COFDM modulating technique and MPEG-2 images compression   technique, which can make sure the high performance of transmission and high quality of image.

2. With the function of non-vision distance transmission and transmission in motion,;

3. The head-end uses all-purpose video interface, which is suitable for common analog camera and digital cameral, and can be also connected with CCDcamera(including helmet type cameral) , and image acquisition equipments for military use, such as night viewing, infrared index, thermal imager, and also for professional cameral;

4. Backboard transmitter uses the base suitable for professional cameral.

5. Backboard equipment uses totally-enclosed heatsinking as machine shell, to extract the heat inside the machine and get high security for system. The shell can prevent dust, prevent water and prevent shake.

6. The A/V interface of backboard transmitter is standard BNC and RCA, and the power interface is Φ3.5mm type.

 

Transmitter Technical Indexes:

Modulation type:                   COFDM, 2K, QPSK

Frequency channel working: 3~800MHz

Route bandwidth:                 8MHz;

Image compression form:      MPEG2   4: 2: 0

Transfer distance:                 Backboard transmitter ≥2-5 km(Under completely noticeable situation);

Output power:                       Backboard transmitter :0.5W-3W          

Transfer delay:                      ≤40ms

Displacement speed:             ≥170 Kilometres per hour;

Passage bandwidth:             8MHz

FEC:                                      1/2

Protection gap:                     1/32

Battery on-time:                    Backboard transmitter ≥2hours(Standby power supply can be equiped )

Power interface:                   Backboard power supply, 3.5mm

Equipment weight:               Backboard transmitter≥1.5kg(Does not contain alternate battery)

Electricity Supply:                 AC 220V,  DC 12V

Working temperature:         -25°C~+55°C;

Equipment appearance:        Black, 115×82×167, 1.7Kg

Environment humidity:         ≥95%

Transmitter structure:          Use radiator as machine shell

Protection standard:            Prevent Rusting, Prevent Shake

 

Backboard system audio and video technology indicators

Image formats:                                         PAL or NTSC composite video　SD-SDI

 Video compression/extract standards:  MPEG-2;

Distinguish rate:                                      720 horizontal line  576 vertical line;

Video rate:                                               above 4.9Mbit/s(adjustable);

Audio channels:                                      Left and right