Accsoon CineView Master 4K TX. A standalone transmitter for a Master 4K system, with HDMI/SDI input and wired iOS monitoring. Receiver purchased separately. The system uses RTMS 4.0 and simultaneous 2.4/5/6 GHz transmission for a director, focus puller or remote monitoring station. It supports UHD 3840 × 2160 up to 60p, H.264/H.265, four wireless viewing devices…
Accsoon CineView Master 4K TX. A standalone transmitter for a Master 4K system, with HDMI/SDI input and wired iOS monitoring. Receiver purchased separately. The system uses RTMS 4.0 and simultaneous 2.4/5/6 GHz transmission for a director, focus puller or remote monitoring station. It supports UHD 3840 × 2160 up to 60p, H.264/H.265, four wireless viewing devices per TX plus one wired iPhone/iPad, and latency below 25 ms at 1080p60 or below 35 ms at 4K60 in low-bitrate mode excluding the camera. Each unit has six antennas, a 1.05″ colour LCD, an aluminium housing and NP-F or 7.4–16.8 V DC power. The manufacturer’s 2.5 km measurement applies to 1080p60 low-bitrate mode under FCC conditions with clear line of sight and no interference; actual permitted operation and range depend on location. Batteries, power supplies and monitors are purchased separately.
ACCSOON CINEVIEW MASTER 4K · TX
A standalone transmitter for a Master 4K system, with HDMI/SDI input and wired iOS monitoring. Receiver purchased separately.

The manufacturer photograph shows Master 4K on set. UHD up to 60p helps the director or focus puller assess detail without running a video cable across the set. Cameras, monitors and batteries shown are separate equipment.
RTMS 4.0 coordinates transmission across 2.4, 5 and 6 GHz with DFS. The 8K-capable processor manages simultaneous streams; actual video remains UHD 4K60. Attach the six antennas correctly: four long 2.4/5 GHz antennas and two short 6 GHz antennas per unit.
The diagram shows TX input, wireless RX, TX HDMI loop output and USB-C video to iOS. One TX feeds four wireless viewing devices in total, mixing compatible receivers and mobiles, plus one wired iPhone/iPad. Each RX uses one wireless slot. RX HDMI outputs UHD up to 60p; SDI remains Full HD up to 60p. Mobile recording and Internet streaming run in Accsoon SEE. Match TX/RX group numbers. Extra devices shown are purchased separately.
Above: TX with 3G-SDI input up to 1080p60, HDMI input/loop-out up to UHD 4K60, USB-C video to iPhone/iPad and DC input. Below: RX with 3G-SDI output up to 1080p60, HDMI output up to UHD 4K60 and DC input. RX has no USB video output. SDI input supports A/B; RX output uses A. HDMI loop-out follows the HDMI input format.
The 4K stream serves wireless and wired iOS monitoring. This photograph shows Master 4K RX feeding a monitor via HDMI.
TX provides a dedicated high-bitrate 1080p USB-C stream to iPhone/iPad. Its bitrate is adjusted separately from wireless video in Accsoon SEE.
The 1080p wireless stream serves mobile monitoring via Accsoon_XXXX Wi-Fi. Each wireless mobile uses one of TX’s four wireless viewing slots.
Use NP-F550/750/970 or 7.4–16.8 V DC, 5.5 × 2.1 mm centre positive, from a source rated at least 2 A. Hot swapping requires the alternate supply to stay connected. Typical consumption: TX 6.5 W excluding mobile charging; RX 5 W. The illustrated optional V-Lock adapter fits Master 4K TX, not RX; it is purchased separately.
The aluminium unit has an active fan with Standard, Quiet and Off modes. Standard adjusts speed with temperature; Quiet limits its maximum speed. The 1.05″ colour LCD and rotary control show and adjust connection, format, channel and group settings. The anti-rotation 1/4″ mount secures the unit to a suitable rig. Body dimensions are 130 × 95 × 32 mm excluding antennas.
This official Accsoon SEE split-screen example compares the LUT preview with the original picture. The app supports 3D .cube LUTs and monitoring aids such as waveform, false colour and focus peaking. A viewing LUT helps assess Log footage; app options can also apply it to mobile recording or streaming. Check the selected mode before recording.
The illustrated SEE control panel distinguishes LUT, rotation and wired USB bitrate. Rotate the mobile recording/stream by 90°, 180° or 270° as required for delivery. App recording is a monitoring copy; retain the camera’s master files. Features depend on device and app version.
The app provides RTMP/SRT streaming through the mobile device’s own Internet connection. Configure the service URL and stream key and provide cellular Internet while receiving video over Wi-Fi. Frame.io cloud workflows require a suitable account and Internet connection. The graphic uses technical labels as an explanatory illustration, rather than promising a localized app interface.
TX’s MFi-certified USB-C output sends video and 5 V/3 A power to one supported iPhone/iPad; it is not a USB-C power input or generic PC capture output. For Lightning use Accsoon’s dedicated cable. Compatible mobile examples include iPhone 12 or later, iPad Pro 12.9″ generation 3 or later, iPad Pro 11″ generation 3 or later, iPad generation 9 or later, Air generation 4 or later and mini generation 6 or later. Wireless monitoring also supports Android and supported M1/M2/M3 Macs. Use current firmware and app. Wireless bitrate affects RX and wireless app views; the independent wired setting affects USB video. CBR/VBR options allow the bitrate behaviour to be selected. TX weighs 322 g without antennas.
The Accsoon CineView Master 4K is a professional wireless video transmitter with 4K resolution support that uses standard NP-F batteries and offers flexible mounting options. To maximize its potential, it is recommended to pair it with robust power systems, mounting adapters for rigs, and cages for mobile devices that serve as viewfinders.
Power and Batteries - Accessories for ensuring continuous power to the transmitter using NP-F batteries.
Mounting and Installation - Adapters and mounts for securely attaching the transmitter to camera rigs, gimbals, or tripods.
Monitors and cages - Protective cages and mounts for tablets and phones that allow you to use mobile devices as professional monitors.
Cables and Transport - Essential connection cables and protective cases for safe handling of equipment.
Rigs and Stabilization - Components for building camera rigs and smooth camera movement with a mounted transmitter.
| Manufacturer: | Accsoon |
| Category: | Wireless video transmission |
| Frequency band | 2.4 GHz · 5 GHz |
| Power supply | NP-F550 · NP-F750 · NP-F970 · DC |
| Material | Aluminium alloy |
| Mounting interface | 1/4″-20 |
| Functions | HDMI loop-out · Automatic channel selection |
| DC power connector | 5.5 × 2.1 mm socket, centre positive |
| Audio sampling frequency | 48 kHz |
| Audio bit depth | 16-bit · 24-bit |
| Input connector | HDMI type A – female · BNC – female |
| Output connector | HDMI type A – female |
| 3G-SDI input level | A · B |
| Status Display Type | Colour LCD |
| Compatible Wireless System | CineView M7 Pro |
| Audio bit depth | 20 bit |
| Output connector | USB-C – female |
| Frequency band | 6 GHz |
| Colour LCD diagonal | 1.05″ |
| Compatible Wireless System | CineView Master 4K |
| Video codec | H.264 / H.265 |
| Functions | USB-C video output to iPhone/iPad · Active cooling: Standard / Quiet / Off · Battery hot swap with DC connected |
| Transmission protocol | RTMS 4.0 |
| Colour | Grey |
| Functions | 3D LUT in Accsoon SEE · Mobile recording in Accsoon SEE · RTMP streaming in Accsoon SEE · SRT streaming in Accsoon SEE · Waveform in Accsoon SEE · False colour in Accsoon SEE · Focus peaking in Accsoon SEE · Recording / stream rotation in Accsoon SEE · Frame.io C2C in Accsoon SEE |
| Line-of-sight range | 2500m |
| Unit dimensions without antennas | 130x95x32mm |
| Weight per unit | 322g |
| Transmitters in package | 1 |
| Maximum receiving devices | 5 |
| Maximum transmission resolution | 3840x2160px |
| Maximum frame rate | 60fps |
| DC input voltage range | 7.4x16.8V |
| Operating temperature | -10x40°C |
| Typical transmitter power consumption | 6.5W |
| Maximum HDMI Input Resolution | 3840x2160px |
| Maximum HDMI Input Frame Rate | 60fps |
| Number of antennas per unit | 6 |
| Transmitter weight without antennas | 322g |
| Maximum wireless receiving devices | 4 |
| Maximum wired monitoring devices | 1 |
| USB output voltage | 5V |
| Maximum USB output current | 3A |
| Minimum DC source current | 2A |
| Latency | <25 ms (1080p60) / <35 ms (4K60) |
| Input | SDI · HDMI |
| Output | HDMI · USB-C (video to iOS) |
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