DJI SDR Transmission 2, DJI, 4000 m, DJI Ronin 2, DJI RS 3 Pro, DJI RS 4, DJI RS 4 Pro, DJI RS 5, and DJI Master Wheels, 2.4000-2.4835 GHz; 5.150-5.250 GHz; 5.250-5.350 GHz; 5.470-5.725 GHz; 5.725-5.850, Black, 136 g

Ready for Complex Sets

DJI SDR Transmission 2 advances SDR technology with stronger interference resistance, better image quality, and greater range. Even on crowded sets, it maintains a high-bitrate, low-latency feed. A TX/RX switchable transceiver design and compatibility with the DJI Ronin series bring professional-grade performance to a compact, lightweight form factor.

1 TX to 8 RX With Control

A single transmitter feeds up to eight receivers, each with remote control. Directors and DPs get a high-resolution feed, while operators and focus pullers can adjust settings and control the camera remotely.

Auto Channel 2.0

Auto Channel 2.0 takes over channel management on set. With Auto Mode enabled, transceivers recognize one another and intelligently coordinate frequencies. More accurate spectrum scanning and conflict diagnostics allow each unit to switch frequencies seamlessly as conditions change, maintaining a stable connection despite interference, even with multiple systems running side by side.

DCI 4K Monitoring

SDR Transmission 2 transmits DCI 4K/60fps, 10-bit HDR, and H.265 video at bitrates up to 50 Mbps. The result is rich detail, smooth color transitions, and clear highlights and shadows, with consistent image quality across multiple cameras.

Up to 4 km Range

Video transmission reaches up to 4 km. From open stadiums to dense mountain forests, and through demanding car-to-car shots or FPV drone work, it sustains a reliable link where you need it most.

Transceiver

• Weight: Approx. 136 g (including antennas)


• Dimensions: 76 × 61 × 25 mm (L × W × H, excluding antennas and Cold Shoe Adapter)

Ports

• HDMI: Input/output


• USB-C (Top): PD power input/output


• USB-C (Bottom): DP input/output, PD power input/output, device activation and firmware updates, log export, phone app connection, and connection to the DJI Ronin series*, Osmo Action 6**, and Osmo Pocket series** devices

The SDI port is available on the DJI SDR Transmission 2 Expansion Plate, which is sold separately.

* Supported models include DJI RS 5, RS 4 Pro, RS 4, RS 3 Pro, Ronin 2, and Master Wheels.

** Supports Osmo Action 6 and Osmo Pocket series (Osmo Pocket 4 and later) via USB-C for monitoring and power supply.

Operating Frequency

• Non-DFS Frequency Band: 2.400-2.4835 GHz | 5.150-5.250 GHz | 5.725-5.850 GHz


• DFS Frequency Band: 5.250-5.350 GHz | 5.470-5.725 GHz

The 5.8 GHz and DFS frequency bands are prohibited in certain countries/regions. Check local laws and regulations for more information. 5.600-5.650 GHz is not used.

Transmitter Power (EIRP)

• 2.400-2.4835 GHz: < 20 dBm (SRRC/CE/MIC)


• 5.150-5.250 GHz: < 23 dBm (SRRC/CE/MIC)


• 5.250-5.350 GHz: < 23 dBm (SRRC/CE/MIC)


• 5.470-5.725 GHz: < 26 dBm (CE/MIC)


• 5.725-5.850 GHz: < 30 dBm (SRRC) | < 14 dBm (CE)

Performance

• Maximum Bandwidth: 40 MHz


• Maximum Encoding Bitrate: 50 Mbps

The maximum encoding bitrate is 50 Mbps, measured under controlled conditions. Actual encoding and transmission bitrates may vary depending on the environment and transmission distance.

Power Consumption

• Standby (no external devices connected): Single Transmitter: Approx. 5.04 W | Single Receiver: Approx. 5.31 W


• 1T1R Transmission* – Main Unit: Transmitter approx. 8.52 W | Receiver approx. 7.58 W


• Each Unit With an Expansion Plate (SDI input/output): Transmitter approx. 10.36 W | Receiver approx. 8.89 W

* Measured at a room temperature of 25 °C (77 °F), at a distance of approximately 10 meters, in a 1T1R setup, using PD for power supply.

Power Supply

• USB-C Power Supply Type 1: 15 V, 3 A (PD protocol*)


• USB-C Power Supply Type 2: 6.8-17.5 V DC


• NP-F Battery Power Supply Voltage: 6.8-8.4 V

* A PD power adapter with an output of 65 W or above is required.

Video I/O Formats

• DCI 4K: 23.98/24/25/29.97/30/50/59.94/60fps


• 4K UHD: 23.98/24/25/29.97/30/50/59.94/60fps


• 1080p: 23.98/24/25/29.97/30/50/59.94/60fps


• 1080i: 50/59.94/60fps (input only on the main unit; input/output on the Expansion Plate)


• 720p: 50/59.94/60fps

4K video format is only supported via the HDMI port and the bottom USB-C port of the transceiver main unit.

Audio I/O Formats

• Input Audio Format: SDI embedded, HDMI embedded, DP embedded


• Output Audio Format: 16-bit, 48 kHz, stereo PCM

Video Transmission

• Video Transmission System: SDR


• Minimum Video Transmission Latency: 35 ms


• Video Coding Format: H.265


• Maximum Transmission Distance: 4 km (CE)


• Operating Temperature: -10 °C to 40 °C (14 °F to 104 °F)

Camera and screen display latency are not included. Measured when shooting 1080p/60fps and 4K/60fps video.

The maximum transmission distance was measured under CE compliance using one TX and one RX in open, unobstructed, and interference-free controlled conditions.

Expansion Plate

• Weight: Approx. 105 g


• Dimensions: 76 × 54 × 25 mm (L × W × H, excluding Cold Shoe Adapter)

Ports – Expansion Plate

• HDMI: Input/output


• USB-C (Right): Power supply and DJI RS 5 connection


• USB-C (Bottom): Power supply, camera control (photo capture and recording start/stop), and connection to DJI Ronin series devices* other than DJI RS 5


• SDI: Input/output

* Supported models include DJI RS 4 Pro, RS 4, RS 3 Pro, Ronin 2, and Master Wheels. When using with Ronin 2 or Master Wheels, the DJI SDR Transmission 2 Gimbal Control Cable (USB-C to 4-pin) is required and sold separately. When using with RS 4 Pro, RS 4, or RS 3 Pro, the DJI SDR Transmission 2 Gimbal Control Cable (USB-C to CAN) is required and sold separately.

Power Supply – Expansion Plate

• USB-C Power Supply Type 1: 15 V/9 V, 3 A (PD protocol*)


• USB-C Power Supply Type 2: 6.8-17.5 V DC


• Operating Temperature: -10 °C to 40 °C (14 °F to 104 °F)

* A PD power adapter with an output of 65 W or above is required.

Transceiver Cage

• Weight: Approx. 91 g


• Dimensions: 124 × 110 × 49 mm (L × W × H)


• NATO Port: Yes


• 1/4″-20 Screw Hole: × 2


• 3/8″-16 Screw Hole: × 1


• HDMI Cable Clamp: Yes


• USB-C Cable Clamp: Yes


• Operating Temperature: -10 °C to 40 °C (14 °F to 104 °F)

1 TX to 8 RX With Control, Multi-Group Transmission
A single transmitter feeds up to eight receivers, each with remote control. Up to five transmitters and 40 receivers can operate simultaneously. Even in complex on-set environments, the wireless camera feed stays stable without sacrificing 4K image quality.

Auto Channel 2.0 for Seamless, Stable Feed
With Auto Mode enabled, transceivers recognize one another and intelligently coordinate frequencies. More accurate spectrum scanning and conflict diagnostics allow each unit to hop frequencies seamlessly as conditions change, maintaining a stable connection despite interference, even with multiple systems running side by side.

SDR, Evolved
It transmits DCI 4K/60fps, 10-bit HDR, and H.265 video at bitrates up to 50 Mbps for ultra-high-definition monitoring. The transmission range reaches up to 4 km, easily handling everything from stadiums to dynamic car shoots. With latency as low as 35 ms, the video feed is near-instant, making remote commands like focus pulls and gimbal moves highly responsive.

TX/RX Switchable
The transceiver design lets you switch between TX and RX on the fly. There is no need to decide your TX-to-RX ratio in advance, so every unit adapts to whatever the shoot calls for. Weighing only about 136 g, the unit reduces the load on handheld gimbals and mounts easily across a wide range of camera setups. It also provides 1 HDMI and 2 USB-C ports.

Pro Monitoring, Flexible Output
Quickly switch between camera feeds directly from the transceiver or the DJI Ronin app. Output the ultra-high-definition, low-latency video feed to pro monitors via SDI, HDMI, or DP ports. You can also connect a smartphone or tablet to the receiver via USB-C for a stable, high-bitrate wired monitoring feed.

Ronin Ecosystem and Beyond
When paired with DJI RS series gimbals, you can wirelessly control gimbal movements and trigger recording with your smartphone. Connect to DJI Ronin 2 and Master Wheels to precisely control heavy cinema cameras on car mounts or crane rigs. Or, link an Osmo Action or Pocket series device for a lightweight setup to capture sports and other unique angles.