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dVMo – Digital Video for Moving Objects

dVMo – Digital Video for Moving Objects. COFDM Digital Video / Data Link. WHAT IS dVMo ?. The dVMo family is a range of products using COFDM techniques to provide a highly resilient radio transmission platform that can delivery voice, video and data information for all manner of applications.

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dVMo – Digital Video for Moving Objects

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  1. dVMo – Digital Video for Moving Objects COFDM Digital Video / Data Link

  2. WHAT IS dVMo ? The dVMo family is a range of products using COFDM techniques to provide a highly resilient radio transmission platform that can delivery voice, video and data information for all manner of applications. dVMo is particularly suited to the reception of transmissions from moving transmitters, normally a difficult undertaking due to so many reflections being created from adjacent objects.

  3. SYSTEM COMPONENTS

  4. WHAT IS COFDM ? Coded Orthogonal Frequency Division Multiplex The transmitted signal comprises 2000 carrier frequencies. The data to be sent over air is spread over these 2000 carriers. Fading due to multipath interference is frequency selective. A loss of some carriers does not result in total loss of reception.

  5. COFDM, DVB-T, TRANSPORT STREAMS COFDM is a transmission technique popularised by the broadcast industry allowing the transmission of high data rate signals across 2000 carriers in an 8MHz RF bandwidth. The DVB-T standard allows multiple services to be uniquely tagged and carried in a single Transport Stream for later retrieval (‘unpicking’) at a receiver site. Any information can be carried across such a link providing it is made to ‘look like’ part of the transport stream.

  6. LINK CAPABILITY The W&D dVMo product is a radio link based on the DVB-T standard using COFDM techniques. As standard the dVMo link has the capacity to carry a single video, 2 audio and a RS232 low bit rate data stream. The dVMo link has an external MUX input allowing a secondary DVB-T transport stream to be ‘added into’ the internally generated stream.

  7. TRANSMITTER & MUX CONCEPT

  8. TRANSMITTERS

  9. LINEAR AMPLIFIERS

  10. DIVERSITY RECEIVER

  11. DIVERSITY CONCEPT

  12. MASTHEAD COMPONENTS

  13. RECEIVERS

  14. IP CONFIGURATION

  15. IP DEVICES

  16. LINK CAPACITY

  17. PROFILE CONTROLLERS

  18. ACCESSORIES

  19. RAPID DEPLOYMENT UNITS

  20. REPEATER INSTALLATIONS

  21. FREQUENCY OPTIONS The following bands are available as standard builds : - • 320 – 360MHz • 800 – 860 MHz • 1.2 – 1.4 GHz • 1.9 – 2.3 GHz • 3.4 – 3.6 GHZ • 5.0 – 5.6 GHz

  22. DEPLOYMENT SCENARIOS

  23. MOBILE TO FIXED BASE STATION

  24. MOBILE TO MOBILE (Car following)

  25. REPEATER RANGE EXTENSION

  26. AIR TO GROUND WITH TELECONTROL

  27. DIVERSITY SECTORED ANTENNA

  28. SECTOR DIVERSITY COMBINING

  29. MOBILE WEBCAM

  30. Decibel Engineering Pty Ltd 21 Woods Parade, Fairlight, NSW 2094, Australia w: www.decibelengineering.com e: info_decibel@decibelengineering.com p: +61 2 9948 6564 The Wood and Douglas range of dVMo products are available in Australia / New Zealand and other countries in the SE Asia / Pacific Rim region from:

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