Ecvv Trade
Shenzhen HMJ Technology Co., Ltd.

China Manufacturer with main products: Wireless Image Transmission, COFDM, Backpack Transmitter, Vehicle-Mountable Receiver

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Rack-mountable Relay HMJ300C-T1

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By using COFDM Modulation technology, we independently researched & developed Wireless HD Mobile Transmission Relay equipment which can transmit A/V signals collected by on-site camera via wireless radio. Transmitter comes with anti-jamming cavity filter that can eliminate interference & jamming by other wireless equipment. It adopts AES/ABS (128bit) encryption to enhance information security.
Application Ranges:
Police, Fire Control, Traffic Police, Civil Defense, Urban Management, Environmental Monitoring, Flood Control, Electrical Repairs, Marine Law Enforcement, Customs & Border Protection, Port Monitoring, Forest Fire Control, Military Surveillance, Television & other related fields. High-resolution image can be mobile transferred in complex environment
Application Modes:
Backpack--Car; Car-- Commanding Center: Car - Relay - Commanding Center
Equipment Features:
1. Stably transmits A/V signals under high-speed moving, multi-path interference & complex environment
2. High-quality digital video processing , encoding & decoding video, DVD pictures
3. With Pop-up LCD
4. Real time electromagnetic field scanning function
5. Strict encryption
6. Multi-path image transmission at same frequency
7. Compatible with Police Internet, 350MB wireless communication system with the help of Cross technology
8. Remote management system can control the switch on/off of Remote control basic station, change related parameters and program upgrading
Technical Parameters:
A. Receiving End
1. Working frequency: 300MHz~5.8G, adjustable
2. Adopt MPEG-2, MPEG-4 and H.264 technical standard
3. Video rate: 25fps
4. Resolution≥720*620
5. Receiving sensitivity: -106dBm
6. One channel video detection & two channels audio detection
7. Two channels A/V output
8. 7 inch pop-up LCD display
9. USB interface for USB/Portable Disk to store image/video
10. Power output: 1~20W (continually adjustable)
B: Transmitting End
1. Working frequency: 300MHz~5.8G, (setting on panel)
2.Power Output: 1~20W (continuously adjustable).
3. Modulation mode: COFDM 2K, QPSK/TDS-OFDM
4. Video input: PAL/NTSC
5. Code stream: 0.8Mbps~10Mbps (adjustable)
6. End to end delay: 40ms
7. One or multi-channel A/V input
8. Video compression standard: MPEG-2, MPEG-4 & H.264
9. BER≤10-6
10. Image definition: transmission rate: 25fps, resolution≥720*620
11. Transmission distance: Airborne>150km, Marine Applications>70km, Urban Area>20km, Suburbs Area>40km
12. FEC: Viterbi (1/2, 2/3, 3/4)
13. Transmitting & receiving antenna: Omni-directional antenna
14. Encryption modes: AES/ABS (128 bit)
15. Guard interval: 1/32, 1/16, 1/8, 1/4
16. Data interface: RS232/RS485
17. A/V interface: analog A/V input interface
18. User-oriented encryption
19. E1 interface (optional)
20. Power supply: AC220V/DC12V
21. Remote system control (optional)
22. Size: 3U 19-inch
23. Weight: 5.0kg
24.:Dimension: 480mm*350mm*133mm (L*W*H)
25. Protection degree≥IP54
26. Working conditions: -30 oC ~80 oC, Relative Humidity: 90%
27. Storage conditions: -40 oC ~80 oC, Relative Humidity: 90%
28. High-temperature test: +70±2 oC, normal function within 24h testing and finish testing
29. Low-temperature test: -25±2 oC, normal function within 24h testing and finish testing

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