S-4904T/R (Gold-Mount) SDI/HDMI 2200ft Wireless System

S-4904T/R (Gold-Mount) SDI/HDMI 2200ft  Wireless System
Item# S-4904A
Availability: Usually ships in 2-3 business days

Product Description

S-4904T/R (Gold-Mount) SDI/HDMI 2200ft  Wireless System
S-4904 is the broadcast industry wireless system, includes an S-4904T transmitter and an S-4904R receiver, with WHDI (OFDM) technology, supports uncompressed 3G/HD/SD-SDI and HDMI wirelessly transmitted in 2200ft 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.

Key Features:

  • Professional WHDI (MIMO/OFDM) technology
  • Uncompressed 3G/HD/SD-SDI and HDMI
  • 2-ch SDI/HDMI embedded audio transmission
  • 2200ft (LOS) transmission distance
  • Less than 1ms latency
  • 5.1-5.9GHz license-free operation frequency
  • User configurable frequency bands
  • Multicast 1 transmitter to multi receivers
  • Less than 63mW radio power
  • AES 256bit encryption
  • Gold Mount connection
  • All-metal housing, durable
  • Pure hardware connection; Plug and Play


Model Transmitter S-4904T Receiver S-4904R
Input 3G/HD/SD-SDIx1 /
Output / 3G/HD/SD-SDIx1
SDI Format SMPTE-425M 1080P (60 / 59.94 / 50)
SMPTE-274M 1080i (60 / 59.94 / 50)
1080p (30 / 29.97 / 25 / 24 / 23.98)
SMPTE-RP211 1080psf (30 / 29.97 / 25 / 24 / 23.98)
SMPTE-296M 720p (60 / 59.94 / 50)
SMPTE-125M 480i (59.94)
ITU-R BT.656 576i (50)
HDMI format 1080p (60 / 59.94 / 50 / 30 / 29.97 / 25 / 24 / 23.98)
1080i (60 / 59.94 / 50)
720p (60 / 59.94 / 50)
480i / 576i
Wireless frequency 5.1 ~ 5.9GHz
Radio modules OFDM 16QAM
Max Transmission distance Approx 2200ft (Line of sight)
Latency ≤1 millisecond
Power consumption ≤6.5W ≤6.5W
Radio power Max 21dBm (63mW) /
Input voltage DC / Battery:6.5~17V DC / Battery:6.5~17V
Working environment Temperature: 0°C -+40°C
Dimension 93x185x63 (mm) 130x188x47 (mm)
Net weight(with antenna) 572g 797g

Input and Output

The transmitter S-4904T supports:
  • 3G/HD/SD-SDI input x1
  • HDMI x1

The receiver S-4904R supports:
  • 3G/HD/SD-SDI output x1
  • HDMI x1
The receiver SDI and HDMI are output simultaneously. If both SDI and HDMI is input to transmitter, the receiver will give priority to output SDI signal.

Approx. 2200ft Effective Distance

In Line of Sight, the S-4904 wireless transmission system support approx. 2200ft effective transmission distance of uncompressed 3G/HD/SD-SDI and HDMI signal, and the latency is less than 1 millisecond.

Embedded Audio Transmission

The S-4904 supports SDI and HDMI embedded audio (ch-1 & ch-2) transmission.

5.1-5.9GHz Operation Frequency

The S-4904 wireless system runs at 5.1-5.9GHz License-free operation frequency. The frequency bands are user configurable and support at most 4 wireless channels in one location. The radio power is less than 63mW and will not do harm to human bodies.

Multicast support

You can set several S-4904R receivers at the same frequency bands as the 1 S-4904T transmitter to enable the multicast mode.

Power Supply and Installation

The transmitter S-4904T is equipped with Gold mount plate, to be easily fixed on cameras and attached with batteries. The receiver S-4904R is equipped with Gold mount plate to be powered by batteries. Both the transmitter and receiver can also be powered via the 5.5/2.1mm pole DC in socket of 6.5-17V input.

Package Includes:

  • 1x S-4904T Transmitter (Gold mount)
  • 1x S-4904R Receiver (Gold mount)
  • 10x Antennas
  • 1x Articulating arm trestle
  • 1x Crab clamp
  • 1x D-tap to 5.5/2.1mm pole cable
  • 1x 5.5/2.1mm pole power adaptor
  • 2x Flat screwdriver (for band configuration)

Warranty Period: Two years conditional.

Related Items:
 S-4904T/R User Manual View S-4904T/R User Manual
S-7904 Antenna for Wireless Transmission System