REDBACK
®
C 8860 UHF Band Auto Scan Wireless Mic System
REDBACK
®
C 8860 UHF Band Auto Scan Wireless Mic System
Page 6
REDBACK
®
C 8860 UHF Band Auto Scan Wireless Mic System
Overview
The C 8860 features an Auto-Scan system allowing quick and easy selection of an interference free
operating frequency. This is particularly useful when there are many existing systems in use nearby.
Incorporates diversity reception ensuring a consistent and clear microphone signal with minimal dropout
and noise interference. 16 channels allow interference free operation with multiple systems in the one
location. Noise reduction system automatically compensates for high level sound inputs thus avoiding
distortion. Channel and volume settings are adjusted via front panel. Transmitters can be recharged via a
front panel port (when fitted with rechargeable batteries). A range in excess of 100m is possible in ideal
conditions. Output is via 3 pin XLR balanced or 6.35mm unbalanced. LEDs are provided for displaying
system status. The system operates from 12-18VDC (power supply included).
Features:
• 16 Channels in 800MHz UHF Band
• LED display shows selected channel
• Half rack 1RU desk mount case
• Dual diversity
• Transmitter battery recharging facility
• Tone squelch circuit
• Range over 100m in ideal conditions
• 6.35mm line output
• 3 pin balanced XLR mic output
Receiver Specifications:
Carrier Frequency Range ......................................................................................................................UHF band
Frequency Stability ....................................................................................................................................±0.005%
Receiving Sensitivity........................................................................................At 8 dBµV over 80dB S/N ratio
Image and Spurious Rejection....................................................................................................80 dB minimum
Selectivity........................................................................................................................................................>50dB
Modulation Mode ..............................................................................................................................................FM
IF Frequency ..................................................................................................................1
st
: 56MHz; 2
nd
: 10.7MHz
Tone Signal..............................................................................................................................................32.768KHz
S/N ratio....................................................................>94dB, at 48KHz deviation and 60dBµV antenna input
AF Response ......................................................................................................................80Hz to 12KHz (±3dB)
T.H.D. ..............................................................................................................................Less than1.0% (at 1KHz)
Power Supply ..................................................................................................................................DC 12V ~ 18V
Audio Output ....................................................Balanced and unbalanced outputs (Mic. -20dB / Line 0dB)
Current consumption ......................................................................................................................150mA (Max.)
Note:
TWO OR MORE WIRELESS MICROPHONES (HANDHELD AND/OR LAVALIER)
WHICH TRANSMIT AT THE SAME FREQUENCY CANNOT BE USED IN THE SAME
LOCATION.
DESIGN AND SPECIFICATIONS SUBJECT TO BE CHANGED WITHOUT NOTICE.
PRECAUTIONS:
* AVOID EXTREMELY DIRTY OR DUSTY ENVIRONMENTS.
* AVOID AREAS WHERE THERE IS EXTREMELY HIGH HUMIDITY.
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Fig 8: Connecting the transmitters to the charging circuit
IMPORTANT NOTE:
DO NOT CONNECT THE CHARGER CABLE
WHEN USING NON-RECHARGEABLE (DRY
CELL / ALKALINE) BATTERIES IN THE
TRANSMITTER.