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SDI 200m Wireless Transmission System
◆ Professional WHDI (MIMO/OFDM) technology
◆ Uncompressed 3G/HD-SDI wireless
◆ Approx. 200 meters (LOS) transmission
◆ Less than 1ms latency
◆ Pure hardware connection; Plug and Play
◆ 5.1GHz – 5.9GHz license-free operation
◆ Less than 63mW radio power
◆ Auto selection of frequency bands
◆ 2-ch SDI embedded audio transmission
◆ AES 256bit encryption
◆ V-mount adaptor for cameras and batteries
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WHDI wireless transmission system

S-4903T/R is the broadcast industry wireless system, includes the S-4903T transmitter and S-4903R receiver, with WHDI (OFDM) technology, supports uncompressed 3G/HD-SDI wirelessly transmitted in 200 meters scale, and with less than 1ms latency. The system is pure hardware connection, plug and play build-up, which is widely used in on-site shooting and director monitoring.



Input and Output

The transmitter S-4903T supports:
3G/HD -SDI input ×1
3G/HD -SDI loop output ×1

The receiver S-4903R supports:
3G/HD -SDI output ×2



Approx. 200m Effective Distance

Uncompressed 3G-SDI, less than 1ms latency

In Line of Sight, the wireless transmission system support approx. 200 meters effective transmission distance of uncompressed 3G/HD-SDI signal, and the latency is less than 1 millisecond.




Embedded Audio Transmission

The wireless transmission system supports SDI embedded audio (ch-1 & ch-2) transmission.

5.1-5.9GHz Operation Frequency

License Free

The wireless transmission system adopts 5.1-5.9GHz License-free operation frequency. The frequency bands are auto selection and support at most 4 wireless channels in one location.
The radio power is less than 63mW.



Power Supply and Installation

Both the transmitter and receiver are equipped with V-mount battery plates, to be fixed on cameras or monitors and attached with batteries.
Meanwhile, the system can also be powered via the 4-pin XLR socket of DC 7-17V input.

Standard Package

The wireless system package provides:
1x S-4903T Transmitter
1x S-4903R Receiver
2x 4-pin XLR power adaptor (A-PA03)
7x Antenna (A-AT00)

Video Formats

The wireless transmission system supports the following video formats:

TransmissionSupported formats
SDISMPTE-425M1080p (60 / 59.94 / 50)
SMPTE-274M1080i (60 / 59.94 / 50)
1080p (30 / 29.97 / 25 / 24 / 23.98)
SMPTE-RP2111080psf (30 / 29.97 / 25 / 24 / 23.98)
SMPTE-296M720p (60 / 59.94 / 50)


S-4903T Transmitter

S-4903R Receiver

Input3G/HD-SDI input×1Wireless receiving

3G/HD-SDI loop output ×1

3G/HD-SDI output ×2
Wireless transmitting
SDI FormatSMPTE-425M1080p (60 / 59.94 / 50)
SMPTE-RP2111080psf (30 / 29.97 / 25 / 24 / 23.98)
SMPTE-274M1080p (30 / 29.97 / 25 / 24 / 23.98)
1080i (60 / 59.94 / 50)
SMPTE-296M720p (60 / 59.94 / 50)
Wireless frequency5.1 ~ 5.9GHz License-free
Radio modulesOFDM
Max Transmission
Approx 200 meters
Power consumption≤10W
Radio power≤63mW ∕
Input voltageDC 7~17VDC 8~17V
Working environmentTemperature: 0°C -+40°C
Dimension146×344×58 (with antenna)
Net weight624g (with antenna)655g (with antenna)

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Fax: +86-25-85805796
Address: 10 HengTong Road, Xin’gang, Nanjing
Economic and Technological Development Zone
Nanjing, 210038, P. R. China.




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