Manually Linking A Transmitter To A Receiver; Combo Systems; 2.4 Ghz Spectrum Overview; Overcoming The Challenges Of 2.4Ghz - Shure GLXD4 Manual

Manually Linking a Transmitter to a Receiver

Use the manual linking option to change the transmitter linked to a receiver. A common use for manual linking is changing the
linked transmitter from a bodypack type to a handheld type.
1. Turn on the transmitter: Within 5 seconds, press and hold the LINK button until the transmitter LED begins to flash
green.
2. Press and hold the link button on the receiver: The blue rf LED will flash, and then remain on when the link has been
established.
3. Test the audio to verify the link and adjust the gain if necessary.

Combo Systems

A combo system is created by linking two transmitters to a single receiver. Only one transmitter can be active at a time to pre­
vent cross interference. Gain settings for each transmitter can be independently set and stored when the transmitter is active.
Important! Do not turn on and operate both linked transmitters at any time.
Turn off both transmitters before beginning.
1. Press the group button to select a group. The receiver automatically scans the selected group to find the best available
channel.
2. Turn on transmitter 1 and link it to the receiver. Adjust the gain, and then turn off the transmitter.
3. Turn on transmitter 2 and link it to the receiver. Adjust the gain, and then turn off the transmitter.

2.4 GHz Spectrum Overview

GLX-D operates within the 2.4GHz ISM band which is utilized by Wi-Fi, Bluetooth, and other wireless devices. The benefit of
2.4GHz is that it's a global band that can be used anywhere in the world, license free.

Overcoming the Challenges of 2.4GHz

The challenge of 2.4GHz is that Wi-Fi traffic can be unpredictable. GLX-D meets these challenges in the following ways:
• Prioritizes and transmits on the best 3 frequencies per channel (choosing from a pool of 6 frequencies across the 2.4GHz
band)
• Repeats the most important information such that one frequency can be taken out entirely without audio interruption
• Continuously scans during usage to rank all frequencies (both current and backup frequencies)
• Seamlessly moves away from interference to backup frequencies without audio interruption

Coexisting with Wi-Fi

If you plan to use Wi­Fi during a performance, turn on Wi­Fi devices prior to turning on GLX­D and scanning for the best chan­
nel. GLX­D detects and avoids other Wi­Fi traffic by scanning the entire 2.4GHz environment and selecting the 3 best frequen­
cies to transmit on. The result of this is reliable performance for your GLX­D wireless system as well as avoiding Wi­Fi trans­
missions which may be important as well.
"Bursting" Wi­Fi is harder to detect as it is periodic; however, because GLX­D repeats the most important information, even
bursts at very high­levels don't have an effect on your audio performance.
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