​Wireless 4K Puzzle Solved

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...

Big Chip Cameras For Broadcast: The History Of The Camera Sensor

Understanding the motivations and implications of using large sensors in broadcast, demands an examination of the historical relationship between cinema and broadcast camera technology & creative production techniques.

Immersive Audio 2025: The Rise Of Next Generation Audio

Immersive audio has gone spatial with the addition of height control and NGA formats to support it, and consumer demand is booming… but it is all still about the experience.

Live Sports Production: Exploring The Evolving OB

The first of our three articles is focused on comparing what technology is required in OBs and other venue systems to support the various approaches to live sports production.

Cloud Compute Infrastructure At IBC 2025

In celebration of the 2025 IBC Show, this article focuses on the key theme of cloud compute infrastructure and what exhibitors at the show are doing in this key area of technological enablement.

Monitoring & Compliance In Broadcast: Real-time Local Network Monitoring

With many production systems now a hybrid of SDI & IP networking, monitoring becomes a blend of the old and the new within a software controlled environment.