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REDBACK
®
UHF Band In-ear Monitoring System
Fig. 2: Connecting the personal receivers to the charging circuit.
Up to 5 personal receivers may be charged at the same time.
Charging current is supplied via an external power supply.
PRECAUTIONS:
* AVOID EXTREMELY DIRTY OR DUSTY ENVIRONMENTS.
* AVOID AREAS WHERE THERE IS EXTREMELY HIGH HUMIDITY.
* TWO OR MORE WIRELESS MICROPHONES (HANDHELD AND/OR LAVALIER) WHICH
TRANSMIT AT THE SAME FREQUENCY CAN NOT BE USED IN THE SAME LOCATION AS
THIS WILL CAUSE INTERFERENCE IN THE PERSONAL IN-EAR MONITOR.
Troubleshooting:
1. Signal dropouts and noise may be suddenly encountered by interruption from outside if there is too
long a distance between microphone and receiver, or battery power is low. In such a case, adjust
receiver antenna or change battery.
2. Do not drop the in-ear monitor.
3. Remove the battery from in-ear monitor if not in use for a long time. This will prevent damage that
a defective "leaking" battery may cause.
Page 4
Using C 8858 5 port charging module
Plugpack
C 8858
(included with
C 8858)
C 8856A
C 8856A
C 8856A
C 8856A
C 8856A
IMPORTANT NOTE:
DO NOT CONNECT THE
CHARGER CABLE WHEN
USING NON-RECHARGEABLE
(DRY CELL / ALKALINE)
BATTERIES IN THE RECEIVER.
REDBACK
System Examples
The C 8856A units receive signal directly from C 8872C or C 8875C transmitters (fig. 3 & 4). This is
especially useful for tour guides requiring mobile communication with a group of people. Alternatively,
the C 8856A units receive signal from C 8854 desktop transmitter (fig 5 & 6). This is useful for fixed
installations utilising recorded music or vocal tracks. Additional transmitters may be set up on separate
frequencies allowing multiple language soundtracks for art galleries, museums, tourist venues etc.
See table 1 for information on selecting frequency channels.
Fig. 3: Direct wireless transmission from C 8872C
handheld microphone.
Fig. 5: This set up allows background
music or recorded vocal track as well
as a hard wired microphone for live
announcements. Inputs can be mixed
via front panel controls.
Hard wired microphone
Fig. 6: This set up allows multi
lingual transmissions to personal
CD Player (Japanese)
receivers. Especially useful for
galleries, museums and tour
operators.
CD Player (English)
®
UHF Band In-ear Monitoring System
Fig. 4: Direct wireless transmission from C 8875C
beltback/lavalier microphone.
CD Player
to line input
to line input
to line input
Page 5
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