
REDBACK® C 8870F UHF Band Diversity Wireless Mic System
Operation - Receiver (Manual Scan mode):
i.
Connect the cable, one end to the balanced or unbalanced output jack of the receiver, the other end to the mic mixing input
of amplifier, audio mixer etc.
ii.
Ensure SQUELCH is set to minimum and press the POWER button for a few seconds to turn the unit on.
iii.
Press SET/SCAN button for one second so that the LED display starts flashing.
iv.
Press Channel Forward / Backward buttons to set the receiver channel. Please set the same frequency channel
(see Tables 1 and 2 in the Appendix) on the transmitter and receiver. If interference occurs from an outside source, change
the channel frequency.
v.
Stop pressing the buttons and let the LED display number flash five times to lock the setting.
vi.
For best results set the VOL control at about three quarters level (three o’clock position) and adjust mixer / amplifier level to
suit. Adjust SQUELCH as needed to limit noise in the signal.
vii.
When the receiver is not in use, switch it off and disconnect it from mains power.
Operation - Receiver (Auto Scan mode):
i.
Connect the cable, one end to the balanced or unbalanced output jack of the receiver, the other end to the mic mixing input
of amplifier, audio mixer etc.
ii.
Ensure SQUELCH is set to minimum and press the POWER button for a few seconds to turn the unit on. Also turn on the
amplifier or mixer and any connected hi-fi devices.
iii.
Press SET/SCAN button for three seconds to search for the next interference-free channel automatically. The auto-scan
system should stop at the next interference-free channel.
iv.
Let the LED display flash five times to lock the setting.
Note 1:
If user needs to set up a multi-receiver system, please keep your previous receiver-microphone pair powered on. A
maximum number of six Redback systems can be used in the one location at the same time. To use the maximum number of
frequencies in the one location at the same time consult the channel guide, in Table 2 in the Appendix.
Note 2:
Setting the SQUELCH high (towards max) will reduce the range of the system.
Note 3:
There are two types of transmitters available. Both are compatible with this unit. Series 1 transmitters have a DIP switch
for frequency selection. Series 2 transmitters have a rotary switch for frequency selection. Please refer to Table 1 in the
Appendix for details.
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