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Multi-channel operation
Combined with ew 500 G2 transmitters, the receivers can form transmission links that can be used in multi-channel systems. For multi-channel operation, only use the free channels in a channel bank. Before putting the transmission links into operation, we recommend performing an auto scan. Scan one of the two receivers of the EM 550 G2 for free channels.
Bank 1 2 3 Free 20 20 17 Bank 5 6 7 Free 12 20 02 4 11 8U 03 20
Select a channel bank with a sufficient number of free channels. Set all transmitter/receiver pairs in you multi-channel system to the free channels in this channel bank.
Adjusting the audio output level AF Out
Via the �AF Out� menu, you can adjust the audio output level of the each receiver of the EM 550 G2. The level can be adjusted in 22 steps. Adapt the level of the audio output (receiver RX A: AF OUT A or receiver RX B: AF OUT B) to the input of the connected unit. The following figures are a guide to the best settings: Line level input: Microphone level input: 0 to +18 dB �22 to �6 dB
Adjusting the squelch threshold Squelch
Both receivers are equipped with a squelch that can be adjusted via the �Squelch� menu. The squelch eliminates annoying noise when the transmitter is switched off. It also suppresses sudden noise when there is no longer sufficient transmitter power received by the receiver. Note: Before adjusting the squelch threshold to a different setting, set the volume on a connected amplifier to the minimum. There are three possible squelch settings: Low = low Mid = middle High = high Selecting the setting �Low� reduces the squelch threshold, selecting the setting �High� increases the squelch threshold. Adjust the squelch threshold � with the transmitter switched off � to the lowest possible setting that suppresses hissing noise. IMPORTANT! Notes: If the squelch threshold is adjusted too high, the transmission range will be reduced. Therefore, always adjust the squelch threshold to the lowest possible setting. When in the setting mode of the �Squelch� menu, pressing the button (DOWN) for more than three seconds will switch the squelch off. �Off� appears on the display. If no RF signal is being received, hissing noise will occur. This setting is for test purposes only.
