From the control room to the equipment racks, 20 SWIT studio monitors support UHD production in Bangkok.
In a broadcast facility, a clear picture is needed beyond the production desk. The control room must keep track of live sources and programme output, while engineers need to inspect signals close to the equipment that routes them.
For its upgrade in Bangkok, Channel 7 needed a monitoring system that could support 4K and HDR in the control room and fit into the equipment room without placing unnecessary demands on rack space.
The installation uses 20 SWIT studio monitors: 14 BM-U175 and six BM-U245HDR. Together, they bring UHD monitoring to the control room and equipment racks.
At the monitor wall, the team can follow incoming feeds alongside the programme picture. The mix of screen sizes gives operators suitable monitoring positions across the room.
For HDR work, the BM-U245HDR combines a 23.8-inch UHD panel with a 1000-nit backlight and HLG/PQ monitoring. Its Payload ID function can set the EOTF and colour parameters from compatible incoming signals, making changes between formats easier to manage.
The more compact BM-U175 brings multiple sources together through its 12G-SDI inputs and multiview display. Both models include waveform, vectorscope and histogram tools when the team needs to assess a picture in greater detail.
In the equipment room, the priority is different: engineers need to see the signal where it passes through the routing and transmission equipment. Rack-mounted BM-U175 monitors provide that picture reference alongside the devices being checked.
Four units are installed here. Supplied rack ears allow each 17.3-inch monitor to fit a standard 19-inch rack, occupying 7U.
For lip-sync monitoring, both models offer audio/video zero-latency monitoring*. It gives the team a dedicated way to check the relationship between speech and picture.
* Zero-latency mode must be enabled. With 4K input, specified latency in this mode is less than 1/100 of a frame.
A monitor wall also needs consistent colour over time. Both models support HLG, PQ and S-Log3 EOTFs, and offer 3D LUT self-calibration with compatible colour probes.
Both monitors support quad-link 8K input as well, although the Channel 7 installation described here is a 4K monitoring project.
The upgrade puts a useful picture reference at both ends of the monitoring workflow. Operators have UHD and HDR tools in the control room; engineers can inspect 4K signals beside the rack equipment. The result is a coherent monitoring setup shaped around the different work taking place in each room.
Start with the sources each position needs to see and the input formats they carry. Then check HDR requirements, the need for lip-sync monitoring, available rack space and how the displays will be calibrated over time.
17.3-inch UHD monitor with four 12G-SDI inputs, multiview and 19-inch rack mounting.
Explore BM-U175 →
23.8-inch UHD HDR monitor with a 1000-nit backlight and four 12G-SDI inputs.
Explore BM-U245HDR →Channel 7 HD is a Thai terrestrial television broadcaster operated by Bangkok Broadcasting & Television (BBTV). Based in Bangkok, the station has a long history in Thai broadcasting and offers a variety of programming, including news, entertainment and drama.
