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Multiple System Setup
Up to 12 systems can operate simultaneously (band and RF environment dependent).
Important: Set up each system one-at-a-time. Once a receiver and transmitter are tuned to the same group and channel,
leave the transmitter powered on. Otherwise, scans from the other receivers will not detect that channel as occupied. For
the BLX88, be sure to setup both transmitters before progressing to the next receiver.
Turn on any other equipment that could cause interference during the performance so it will be detected during the group
and channel scans in the following steps.
Before you begin system set up, turn all receivers ON and all transmitters OFF.
Forthefirstreceiver:
1. Perform a group scan.
This finds the group with the most clear channels.
Note: For the BLX88, the group scan sets up both receivers at the same time.
2. Turn on the first transmitter and change the group and channel to match receiver.
3. Leave the transmitter on and continue with the additional systems.
Note: If the selected group does not contain enough open channels, manually select group "d" when setting up larger
systems.
Foreachadditionalreceiver:
1. Use manual setup to change the receiver to match the group setting of the first receiver. Recall that each time the
group setting is changed, a channel scan is automatically done.
2. Turn on the transmitter and change the group and channel to match the receiver.
3. Leave the transmitter on and continue to the next system.
4. Once all receivers are set up, perform an audio check on all microphones.
Manually Setting Receiver Group and Channel
The receiver group may need to be changed as part of a multiple system setup.
Group(letter)
1. Hold the group button on the receiver until the display begins to flash.
2. While the display is flashing, press the group button again to advance to the next group.
Note: Only the group setting will be displayed during the manual setup.
3. Once the desired group is reached, release the group button. The receiver automatically performs a channel scan.
Channel(number)
Always use a channel selected by the channel scan. However, if necessary, the channel can be set manually. Follow the
same steps above using the channel button instead of the group button.
Locking and Unlocking Controls
Lock system controls to prevent accidental setting changes or power off.
Transmitter(lock/unlock)
Turn the transmitter on. Hold the group button, then press
the channel button for approximately 2 seconds. The
LED indicator rapidly flashes red when locked.
Receiver(lock/unlock)
Turn the receiver on. Simultaneously hold the group and
channel button. The display flashes rapidly.
• When locked, the display flashes rapidly if any key is
pressed.
• The BLX88 locks on both sides when locked from
either side.
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