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Review Summary
Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.
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1x 3G/HD/SD-SDI, 1x HDMI
1x 3G/HD/SD-SDI, 1x HDMI
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)
1080p (60 / 59.94 / 50 / 30 / 29.97 / 25 / 24 / 23.98)
1080i (60 / 59.94 / 50)
720p (60 / 59.94 / 50)
480i / 576i
5.1 - 5.9GHz
OFDM 16QAM
Approx. 2000' (Line of sight)
<=1 millisecond
<=6.5W
Max 21dBm (63mW)
DC/Battery: 6.5-17V
0 to 40 deg. C (32 to 104 deg. F)
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)
1080p (60 / 59.94 / 50 / 30 / 29.97 / 25 / 24 / 23.98)
1080i (60 / 59.94 / 50)
720p (60 / 59.94 / 50)
480i / 576i
5.1 - 5.9GHz
OFDM 16QAM
Approx. 2000' (Line of sight)
<=1 millisecond
<=6.5W
DC/Battery: 6.5-17V
0 to 40 deg. C (32 to 104 deg. F)
Transmitter: 93 x 185 x 63mm (3.66 x 7.28 x 2.48")
Receiver: 130 x 188 x 47mm (5.12 x 7.40 x 1.85")
Transmitter (with antenna): 572g (20.18oz)
Receiver (with antenna): 797g (28.11oz)
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 700 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.
Professional WHDI (MIMO/OFDM) technology
Uncompressed 3G/HD/SD-SDI and HDMI
2-ch SDI/HDMI embedded audio transmission
2000ft (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
V-Mount connection
All-metal housing, durable
Pure hardware connection; Plug and Play
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. 2000ft Effective Distance
In Line of Sight, the S-4904 wireless transmission system support approx. 2000ft 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 V-mount plate, to be easily fixed on cameras and attached with batteries. The receiver S-4904R is equipped with V-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.