For multi-camera shows, this 4K/8K 12G-SDI monitor divides into four windows fed by independent sources, mixing SDI rates with HDMI 1.3, 1.4 or 2.0. Every window carries its own scopes, level meters, transfer curve and colour space. Another mode copies one input into four windows rendered with different curves, say HLG in BT.2020 beside gamma 2.4 in BT.709. That is how an HDR programme with an SDR simulcast gets signed off from a single seat.

HDR monitoring covers HLG, PQ and Sony S-Log3, plus SDR gamma 1.0, 1.8, 2.2, 2.4 and 2.6, against BT.709, DCI-P3, BT.2020 or the panel’s native gamut. If the source carries Payload ID, the monitor reads it and sets EOTF, gamut, range, colour space and bit depth by itself, which removes a classic error during quick changeovers. Preloaded log-conversion LUTs handle REDLogFilm, J-Log1, ARRI Log C, Canon C-Log, Panasonic V-Log and Sony S-Log2 or S-Log3, outputting Rec.709, HLG1000 or PQ1000. Custom looks arrive on a USB drive as 17-point .cube files.

Colour drift is dealt with on the spot. Plug a JETI specbos 1211, or SWIT’s own edition of the X-Rite i1, into the monitor’s USB socket; the BM-U175 then shows its own patches, measures them and writes a corrective 3D LUT, no laptop required. By SWIT’s figures an i1 run finishes in around a quarter of an hour, a specbos run in around 45 minutes, both ending under ΔE 1.0. For a company running several identical screens, that keeps camera control and edit suite pictures matched between jobs.

The measurement set includes a nits-graduated Y, Cb, Cr, R, G and B waveform with a single-line option, a vectorscope, R/G/B/Y histogram and a gamut-position pattern for BT.709 and BT.2020. There is also an eye pattern; it exposes jitter and amplitude problems on a 12G link while there is still time to swap the cable. Zebra, focus assist, false colour, R/G/B and mono views, H/V delay, frame freeze and markers (15:9, 14:9, 13:9, 4:3, 2.35:1, 2:1, 1.85:1 or user-defined) handle shading and framing. Programmable F1–F5 keys keep favourite tools one press away.

Feed it 4K and the added delay is less than 1/100 of a frame. This zero-latency behaviour lets the screen serve as a lip-sync reference while cameras are racked beside a live switcher. Level meters cover as many as 16 embedded channels, and a chosen pair goes to the built-in speaker or the 3.5 mm headphone jack. Phase faults show up on Lissajous and 5.1+2 surround displays.

Control follows broadcast convention. TSL 3.1 and 4.0 UMD travel over RS485 in both directions, next to a GPI tally input, and the monitor overlays labels and tally status on the picture. Gigabit Ethernet serves a browser page for remote adjustment, and firmware updates load over USB.

Power is just as adaptable: 100–240 V AC, 12–17 V DC, or a Gold Mount or V-mount battery through the matching rear plate, with consumption up to 60 W. The SWIT BM-U175 17.3" 4K/8K monitor therefore fits a camera control position, a DIT cart, a short OB rack or a client review desk where a 24-inch or 31.5-inch screen would not, while keeping the signal handling of the larger BM-U models.