汤广勇
Published at: 2025-12-31
Does Mars 300 Pro support transmit sound signal?
For Mars300 Pro
All the Hollyland`s video transmission system are support to transmit sound siganl
pictures 1
pictures 2
pictures 3
The function of wireless video transmission system：the video transmission system is just like an HDMI cable, one end connected to the camera, one end connected to the monitor, to achieve wireless video transmission（likes the pictures 1）
1. Transmitter( TX ) connects to the camera(video resource)
2. Receiver (RX) connects to the monitor
The way to connect video transmission system to the camera：（ as the pictures 2）
1. TX：the TX is connecting with the camera
2. TX's HDMI port
3. micro HDMI 1.4 Connection Cable，One end connects to the camera HDMI port，One end connects to the TX HDMI IN port
4. Video output connector of the camera
(Tips: Different brands of cameras with different HDMI port type is different, please according to the camera's HDMI port type to purchase the corresponding HDMI connection cable )
The settings of camera：（Take Sony A7R as an example，as the pictures 3）
1. Find the camera's [External Output] setting menu
2. Set the HDMI resolution to [1080p] or [1080i] format
3. Set the HDMI output format the same as the HDMI resolution [1080p] or [1080i]
4. Set HDMI information display as【off】
5. Set HDMI control settings as【off】
Tips.
1) The HDMI output settings of different camera may be different, but the general settings are the same
2) When the camera record the 4K format video it is normal if the screen of external video transmission system turn to black; the reason is that the when camera recording 4K format video the power consumption will become larger; if the user need camera screen display, the user can change the recording format to 1080
