The 4K Family of devices (including 4K HDMI, 4K SDI, 4K QUAD, and OG4) help to connect your video sources, like cameras or computers, to your network using a format called NDI (Network Device Interface). These devices don't change the NDI signals; they simply perform two main functions:

1. Convert to NDI: They can take a video signal from a source like an HDMI or SDI (two common types of video connections) and convert it into an NDI signal, which can then be sent over a network.

2. Output from NDI: They can take an NDI signal from the network and output it through HDMI or SDI without changing the signal's resolution (like 1080p or 4K) or frame rate (like 30 frames per second).

Key Things to Remember:

• There are No Changes to the Signal: The 4K Family devices do not change or scale the video signal. For example, if you input a 1080p video at 60 frames per second, it will output the same 1080p video at 60 frames per second. The same is true when going from NDI to HDMI or SDI. There is no transformation of the resolution or frame rate at any point.
  
• Matching Resolutions: Make sure the input and output resolutions match; otherwise, the device won't work properly. If you think the resolutions match and it still isn’t working, check the Understanding Active Signal Resolution (ASR) section below for more details.

Troubleshooting Common Errors:

• Monitor Errors: If you see an error message on your monitor, it's usually not a problem with the 4K Family device. More often, the issue comes from the monitor itself. For example, some monitors do not support specific formats that the device outputs, such as broadcast standards like 29.97 frames per second (fps) or 59.94 fps. Others may not support 4K resolution. To fix this, check the output format on the 4K Family device’s dashboard and make sure your monitor is capable of displaying that format.

• Connecting Laptops as a Video Source: If you're using a laptop to send video to the 4K Family device via HDMI, it's best to connect the HDMI cable directly between the laptop and the 4K Family device. Avoid using any adapters or extra devices in between, as they can cause signal issues.

Understanding Active Signal Resolution (ASR):

When using a Windows computer as the video source, it's important to ensure that the computer's "Active Signal Resolution" matches the resolution of the desktop display. The Active Signal Resolution refers to the actual resolution being sent out over the HDMI connection, which can sometimes differ from the desktop resolution you see on the screen.

For example, if your desktop resolution is set to 1920x1080 (1080p), the Active Signal Resolution should also be 1920x1080. If these two resolutions don’t match, you may encounter display issues or errors. You can check and confirm the Active Signal Resolution by going to the Advanced display settings on your Windows computer (see image below).

By ensuring that the Active Signal Resolution and the desktop resolution are aligned, you help maintain a consistent and stable video output to the 4K Family device.

Following these guidelines will help ensure smooth video transmission without any unexpected errors or issues.