Wireless 4K Puzzle Solved
_copy_789_592_70_s.jpg)
4KRF from Broadcast RF built with Vislink Ultracoder.
One of the missing pieces in the 4K live acquisition is being cracked with a number of options now available to send pictures wirelessly from pitchside.
Broadcast RF claims the first UHD radio camera system available for hire. The 4KRF system comprises of a Sony F55, a full transmit and receive system for live broadcast. It is offered with technical support if required for live events. It uses the system on a live heli downlink working with Aerial Camera Systems to obtain live 4K broadcast from the air.
The system mounts to the back of a 4K camcorder such as the Sony F55 like any other radio camera transmitter and includes full Sony RF camera/paint control.
It is based on the new UitraCoder HEVC/H.265 encoder from Vislink. The system accepts 4K/UHD streams on a Quad 3G-SDI input. While other approaches use four separate encoders/modulators to individually encode and transmit each quadrant of the UHD picture, the 4KRF system processes the entire 4K picture through a single encoder/modulator chain, thus increasing encoding efficiency and eliminating any possible synchronisation issues between the individual quadrants.
BBCR&D has chosen to use Multiple-input Multiple-output (MIMO) wireless technology halving the bandwidth required and therefore significantly reduce the cost of news and sports coverage. Its halfRF HD/UHD radio-camera incorporates knowledge of DVB-NGH and DVB-T2 and also uses error correction and time interleaving to provide a rugged system that transmits 4K over a130Mb/s link. This is still prototype with tests planned at a soccer match. There's a minimum 4 frame latency. The BBC plans to licence the innovation to camera manufacturers.
GoPro has a backback or tethered Hero model engineered with Vislink's HD RF link (branded HeroCast) for live broadcast. The latency is 180-200 milliseconds. The Hero4 Black is GoPro's 4K camera and while 4K can't yet be streamed from it live the company says it is looking at this.
You might also like...
Image Capture & Virtual Production At NAB 2025
The world of image capture is vast. NAB 2025 presents a unique opportunity to get a first hand inspection of cameras to suit every conceivable application alongside the latest in Virtual Production and robotics.
Sports Production Infrastructure – Where’s The Compute?
The evolution of IP based production and increased computer processing power have enabled new workflows, so how is compute resource being deployed to create new remote and hybrid approaches?
BEITC At NAB 2025: Conference Sessions Preview - Part 2
Once again in 2025 The Broadcast Bridge is proud to be the sole media partner for the BEIT Conference Sessions at NAB. They are not free, but the conference sessions are a unique opportunity to engage with very high quality in-person…
Microphones: Part 8 - Audio Vectorscopes
The audio vectorscope is an excellent tool for assuring quality in stereo sound production, because it makes the virtual sound image visible in the same way that a television vectorscope allows the color signals to be seen.
BEITC At NAB 2025: Conference Sessions Preview - Part 1
Once again in 2025 The Broadcast Bridge is proud to be the sole media partner for the BEIT Conference Sessions at NAB. They are not free, but the conference sessions are a unique opportunity to engage with very high quality in-person…