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Home > Device Management > 3G Ultra Device Management > [3G Ultra] EDID Management
[3G Ultra] EDID Management
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Jun 27, 2024

Overview

The Default EDID on 3G Ultra Transmitters ask for the maximum audio and video format that they are capable of. However, there may be instances where the default EDID on the Transmitter does not produce the desired result, or special resolutions, color-space options, or audio formats are needed. In those cases, modifying the EDID on the Transmitter is necessary.

If you are not able to get a 4K resolution out of your 4K capable source, first ensure that your 3G Transmitters and Receivers are running the latest firmware before attempting EDID modification. Updating to the newest firmware can fix the most common resolution related issues.

There are three options for EDID modification: Built-in EDID, Capture EDID, and Custom EDID. At any time, the default EDID can be restored through the web interface of each individual Transmitter.

These instructions are for 3G devices on justOS firmware. For 3G devices on legacy firmware (Ax.x.x), please see the article on 2G EDID Management.

View Active EDID

To view the active EDID on any Transmitter

  1. Log into the webUI of the Transmitter
  2. Go to the Video tab and scroll down to the EDID Details card.
  3. The string of hex characters that appears is the current EDID. After an EDID change has occurred, click Refresh to see the updated EDID.

Built-In EDID

Transmitters hold a selection of EDIDs for common Video and Audio formats.

To use a Built-In EDID:

  1. Log into the webUI of the Transmitter
  2. Go to the Video tab and scroll down to the EDID Settings card
  3. Click the dropdown to see the available EDID options:
    • Do Not Change is shown when a Custom EDID has been applied, and it should remain that way
    • Default matches the maximum capabilities of the Transmitter. Each model of Transmitter may have a different Default EDID.
    • Built-In provides a Video and Audio dropdown to be able to set the maximum formats
    • Custom allows for an EDID to be pasted in and applied
  4. Select Built-In
  5. Set the Maximum Video Resolution and Maximum Audio Format to match the source output capabilities
  6. Click Apply
  7. The Transmitter EDID is updated immediately, but the source may need to be power-cycled to detect the new EDID

The options that are available depend on the hardware capabilities of the Transmitter.

Capture EDID

Capture EDID uses the EDID of an active Display and copies that EDID onto a Transmitter. Once an EDID has been captured, the Transmitter will report to the Source as if the Source was directly connected to the original Display.

To capture an EDID:

  1. Power off or disconnect from the network any Transmitters that should NOT get the captured EDID. The capture process sends the new EDID to ALL active Transmitters.
  2. Log into the web interface of the Receiver that is connected to the Display that the EDID will be captured from.
  3. In Video Settings under EDID Settings, click the Capture button.
  4. The Receiver will grab the EDID from the Display, send it to all active Transmitters, and update to the new EDID. This process happens immediately, but the source may need to be power-cycled to detect the new EDID.

Custom EDID

Custom EDID uses a string of hex characters that represent the EDID information and writes it directly to the Transmitter. This process requires an EDID written in text format with no spaces or line breaks.

The example below is an EDID customized for a 4K AppleTV that asks for 4K HDR video and Dolby Digital 5.1 audio:

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

To apply the Custom EDID:

  1. Log into the webUI of the Transmitter
  2. Go to the Video tab and scroll down to the EDID Settings card
  3. For Startup EDID, select Custom
  4. Paste the EDID in the Custom EDID box
  5. Click Apply
  6. The Transmitter EDID is updated immediately, but the source may need to be power-cycled to detect the new EDID.
  7. (Optional) In the EDID Details card, click Refresh to see the new Live EDID. It will look exactly like the EDID pasted in the Custom EDID box.

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