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Applications:
- High-Security Surveillance Applications
- Helicopter links
- UAV/UGV Applications
- Mobile and Portable AV Applications
Key System Features:
- C-OFDM Modulation: 2K or 400 (optional) Carriers
- Bandwidths: 6 MHz, 7 MHz or 8 MHz (1.25 & 2.5 MHz optional)
- Output Frequency: 0.36 to 7.2 GHz (In-Bands)
- Output Power: Programmable up to 2W (Up to 5 W and 10 W with external PA)
- Built-in MPEG-2/4 Encoder
- Low End to End System Latency (~40 mS)
- Rugged Compact Design: 2.8” X 3.1” X 1.1”
- Local Control Interface
- Secure – AES with Seed Code
The Very Efficient Transmission Apparatus (VETA) Product Line provides several key features that enable high quality and low-latency wireless Audio/Video (A/V) transmission for the most demanding short or long distance point to point or point to multipoint transmission applications. VETA uses a robust digital modulation system known as Coded Orthogonal Frequency Division Multiplexed (COFDM) that provides a reliable link that is immune to multi-path interference and provides crisp, clear pictures in the most difficult of terrains.
The VETA product line supports, the standard DVB-T 2K carriers with bandwidths of 6, 7, or 8 MHz. Additionally, an optional 1.25 MHz or 2.5 MHz RF bandwidth with 400 carriers may be user selected that allow a large quantity of simultaneous A/V links to operate in the same frequency band.
One of the biggest problems encountered in the transition from analog to digital A/V systems has been the inherent digital coding/decoding delays that in some digital systems are 400ms or more. The VETA Transmitters & Receivers employ internal MPEG-2 or MPEG-4 (User Selectable) Encoders and Decoders with specially designed ‘low-delay’ coding technology, which provides an end to end latency of approximately 40ms without the introduction of any further MPEG encoding artifacts.
This ensures that the picture you see is what is happening now - crucial for applications such as sports coverage, surveillance, and law enforcement, where 
personnel are reacting to real-time events.
The VT-2W is a VETA Transmitter that has been designed to have a low profile and a rugged housing that can survive the harshest field environment. The VT-2W includes a simple control panel that allows the selection of up to 8 set-up (frequency & modulation) configurations, Encryption Enable/Disable and selection of 4 range modes. Status indicators are provided for the presence of input Video and RF output. Companion compact, Power Amplifiers are also available to boost the output power of the VT-2W up to 15 W.
The VT-2W accepts a composite or S-Video input, analog stereo audio inputs and a RS232 user data input. The video is compressed according to MPEG 2 or MPEG-4 specifications. The audio is sampled and compressed. The audio, video and data packet streams are multiplexed with basic service data to indicate the service name. The stream can be scrambled AES scrambling system to give basic protection in sensitive applications. The transport stream is sent for FEC pre-processing and C-OFDM modulation. The modulated signal is amplified and output through a SMA-F connector.