Wireless video

Wireless video transmitter and receiver sets that cut the cable between the camera and the director, client or focus puller.

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Wireless video: DJI DJI SDR Transmission Combo in use
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How to choose a wireless video transmitter

Range, honestly. Published range figures are line-of-sight with nothing in the way. Walls, bodies and a busy 5 GHz environment all cut it. Pick a system with headroom over your worst case, not your best.

Latency. Anything above a few frames is unusable for focus pulling and awkward for a director. Sub-frame latency is what the Pyro series and the Atomos TX/RX pack are built for.

Resolution and inputs. Pyro S and Pyro H handle HDMI; Pyro Ultra and Cosmo C1 and C2 add SDI and 4K. Match the transmitter to what the camera actually outputs.

Receiver count. Most systems support several receivers from one transmitter — that is how the director, the client monitor and the focus puller all see the same feed. Check the maximum.

Power and mounting. These run on NP-F or built-in batteries and need a mount on the cage. Antennas matter: Hollyland's soft antennas and paddle antennas change the pattern, and a broken antenna is the most common failure.

Hollyland and Atomos make most of it, including the TX 4K/HD and RX 4K/HD pair. Hollyland's Pyro 5, Pyro 7 and Mars M1 monitors in monitors and recorders have receivers built in, which removes a separate box from the rig.

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Questions we get asked

How far will a wireless video transmitter actually reach?

Less than the published figure. Quoted range is line-of-sight in clear spectrum; walls, people and a crowded 5 GHz band all reduce it, sometimes by more than half.

Is wireless video good enough for focus pulling?

Only with sub-frame latency. Systems with several frames of delay make pulling focus guesswork, so check the latency specification rather than the range.

How many receivers can one transmitter feed?

Most systems support multiple receivers — commonly two to four. Check the maximum for your model before planning a director's monitor plus a client monitor plus a focus monitor.

Can a monitor be the receiver?

Yes. Hollyland's Pyro 5, Pyro 7 and Mars M1 have receivers built in, which removes a separate receiver, its battery and its mount from the rig.

What powers a wireless transmitter?

Usually NP-F batteries, a D-Tap feed from a V-mount, or a built-in cell. Check the runtime at your resolution, because 4K transmission draws more than HD.