Overview of the AJA 12GDA

The AJA 12GDA is a compact 1x6 12G-SDI distribution amplifier designed to take a single SDI input and replicate it across six identical outputs. Developed by AJA Video Systems, it is engineered for professional video environments where signal reliability and quality are critical.

Signal Distribution Capability

The device allows one SDI source to be distributed to multiple destinations without degradation. Each output is independently buffered, ensuring that all connected devices receive a clean and consistent signal identical to the original input.

Format Support and Compatibility

The 12GDA supports a wide range of SDI formats including SD, HD, 3G, 6G, and 12G-SDI. This makes it compatible with both legacy systems and modern UltraHD workflows, allowing seamless integration into mixed-format production environments.

Reclocking and Signal Integrity

Built-in reclocking ensures that the incoming SDI signal is regenerated to reduce jitter and maintain stability across all outputs. Combined with cable equalization, the device helps maintain strong signal quality even over longer cable runs.

HDR and Metadata Support

The 12GDA passes through all ancillary data including HDR metadata. This ensures that high dynamic range workflows retain full image and metadata integrity across the distribution chain.

Design and Installation

Its miniature form factor allows for flexible deployment behind monitors, in racks, or on camera rigs. The unit includes a locking power connector to prevent accidental disconnection and supports universal power input for global usage.

Use Cases

The 12GDA is commonly used in broadcast studios, live production setups, and post-production facilities where a single SDI signal needs to be reliably distributed to multiple devices such as monitors, switchers, recorders, or encoders.