Teradek Bolt 4K MAX 12G-SDI/HDMI Wireless Transmitter (V-Mount)

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Product Overview


  • Transmits up to 3000' Line of Sight
  • Supports up to 4K60 Resolution
  • Compatible with Bolt 4K Line
  • 12G-SDI and HDMI Input, 12G-SDI Loop-Out
  • Supports HDR Workflows
  • 4 x Antennas, Less than 1 ms Delay
  • 5 GHz DFS and Non-DFS Frequencies
  • AES-256 Encryption, Noise Rejection
  • Transmits to up to 6 Receivers

Use the Bolt 4K MAX 12G-SDI/HDMI Wireless Transmitter from Teradek with Gold mount battery plate to transmit 4K60 video signals from a 12G-SDI or HDMI input to any Bolt 4K series receiver with less than 1 ms of latency. The transmitter unit can be secured to a camera or other SDI/HDMI video source via a built-in 1/4"-20 threaded hole as well as two M3 threaded holes. The four included antennas provide a powerful signal for up to a 3000' line of sight, and with the 4K Array Panel antenna you can transmit up to 5000' line of sight.

The transmitter supports cross conversion from HDMI input to SDI loop output. It also supports HDR workflows, 10-bit 4:2:2 via 12G-SDI, and 8-bit 4:4:4 via HDMI. Its bright LED screen shows current settings and frequencies, and the transmitter can also connect with the Bolt app for iOS via Bluetooth for configuration.

Power can be provided using a Gold mount battery or with the integrated 2-pin connector and included AC adapter. The transmitter supports up to six receivers, and it can operate up to six transmitters in the same area along with Wi-Fi or 5 GHz appliances with the help of the noise rejection feature. It also features a built-in AES-256 encryption with RSA-1024 key exchange.

Also included are four antennas, a D-Tap power cable, a USB cable, an SDI cable, an HDMI cable, and cable cover plates.

  • HDMI and 12G-SDI inputs, with 12G-SDI loop-through output
  • 3000' line-of-sight range, 5000' line-of-sight range with separately available 4K Array panel antenna
  • Compatible with any Bolt 4K series receiver
  • Up to 48 kHz 24-bit PCM embedded audio supported
  • SDI ancillary data support for metadata, timecode, and start/stop flags from certain camera manufacturers
  • 1/4"-20 and M3 mounting points
  • 2-pin LEMO-type power input
  • Built-in display with joystick navigation
  • Micro-USB port for upgrades


Wireless Range 3000' / 914.4 m (Line-of-Sight)
# of Channels 14 (40 MHz)
Channel Bandwidth 40 MHz
Frequency Range US: 5.19 to 5.23 GHz
US: 5.75 to 5.79 GHz
US: 5.27 to 5.67 GHz
Latency < 1 ms
RF Power 19 dBm
Wi-Fi 5 GHz
Wireless Video Compression Uncompressed
Antenna Ports 4 x RP-SMA Female
Video Connectors 1 x BNC (12G-SDI) Input
1 x HDMI (HDMI 1.4 / HDMI 2.0) Input
1 x BNC (12G-SDI) Loop Output
Other I/O 1 x USB Micro-B USB 2.0 Input
Embedded Audio HDMI: 2-Channel
SDI: 2-Channel
Encryption 256-Bit AES
Format Support
Broadcast System Compatibility NTSC, PAL
Video Format SDI/BNC:
1080p/DCI 4K 4:2:2 YCC 10-Bit at 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 fps
1080PsF 4:2:2 YCC 10-Bit at 23.98, 24, 25, 29.97, 30 fps
1080i/720p 4:2:2 YCC 10-Bit at 50, 59.94, 60 fps
1080p/DCI 4K 4:4:4 RGB 8-Bit at 23.98, 24, 25, 29.97, 30, 50, 59.94, 60 fps
1080PsF 4:4:4 RGB 8-Bit at 23.98, 24, 25, 29.97, 30 fps
1080i/720p 4:4:4 RGB 8-Bit at 50, 59.94, 60 fps
Audio Format 2-Channel 24-Bit 48 kHz PCM Audio
Timecode Yes
Built-In Battery None
Battery Support 1 x V-Mount
Power Connector 1 x 2-Pin LEMO (6 to 28 VDC) Input
Power Consumption (20 W)
Operating Temperature 32 to 104°F / 0 to 40°C
Mounting 1 x 1/4"-20 Female
2 x M3 Female
Materials Aluminum
Dimensions 5.2 x 3.58 x 1.06" / 132 x 91 x 27 mm
Weight 12.7 oz / 360 g
14.39 oz / 408 g (With 4 x Antennas)


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