Summary

When connecting a Roku to a Just Add Power Ultra Series Encoder, the Roku may not always detect the correct 4K resolution. The settings below ensure the best video and audio performance. If you notice video tearing at 4K 60Hz, adjust the Encoder as described.

Recommended Roku Settings

• Resolution: 4K SDR (60Hz)
• Audio: Stereo or Dolby Digital 5.1

Encoder Adjustment (Only if Tearing at 4K60)

1. Open the Encoder’s web interface.
2. Press CTRL + ALT + ENTER to open the CLI.
3. Enter the command:

   astparam s ast_video_quality_mode 3; astparam save; reboot

4. The Encoder will reboot and apply the change.

Important: Only apply this change if you see tearing or artifacts at 4K60.

Quick Tips

• Always confirm Roku video is set to 4K SDR (60Hz) after configuration.
• If issues persist, power cycle in this order: Roku → Encoder → Decoder → Display.

Result: With these settings, Roku will deliver smooth 4K video and reliable audio on Just Add Power Ultra Series Encoders and Decoders.