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REDBACK
®
Desktop Portable PA System
PLEASE NOTE: ALL TRANSMITTERS ARE SOLD SEPARATELY
Handheld Transmitter Features:
• High sensitivity cardioid capsule reduces unwanted handling noise to a minimum
• Special noise absorption parts inside the barrel, which eliminate switch shock noise and handling
noise.
• PLL synthesized control circuitry.
• Easy-opening battery compartment for quick replacement. Requires 2 x AA batteries (not supplied).
• Low battery LED indicator..
Specifications:
• Carrier Frequency Range:......................UHF band 790~806MHz
• RF Power Output: .................................. 2mW (max.)
• Spurious Emission: ................................ More than 45dB below carrier frequency.
• Frequency Stability:................................ Within ±0.005% with PLL synthesized controlled
• AF Response: .......................................... 40Hz to 15KHz (+/-3dB)
• Maximum Deviation: ............................ ± 15KHz within limiting compressor.
• Signal to Noise Ratio: ............................ 60dB(A-Weighted).
• Microphone Capsule: ............................ Uni-directional condenser microphone
• Operating voltage:.................................. DC1.5Vx2 (UM-3 type)
• Current consumption:............................ About 65mA (max.)
• LED Indicator: ........................................ Power On-Off and low battery
Operation: (See Fig 3.)
1.Unscrew the bottom half of the microphone, to access the battery compartment and channel selector.
2. Insert 2 x AA Size 1.5V batteries into the battery holder according to polarity (+) and (-) indicator
marked on the battery housing.
3. Screw the battery cover back onto the microphone..
4. After setting the chosen frequency to the same frequency as the receiver, push the power switch to
"ON". The LED indicator will flash once to indicate the unit is operational.
5. Push the power button to "OFF" when mic is not in use. Remove the batteries from the unit if not to
be used for a long time. This will prevent damage to the unit that a defective "leaking" battery may
cause.
6. If the LED indicator is permanently illuminated, the battery needs to be replaced.
Fig 2.
1
2 3
Page 3
1. Screen head
2. Low battery LED Indicator
3. ON/OFF switch
4
4. Battery cover
5. Battery housing
6. Frequency selector
7. 12V DC charging input
5
6
7
PLEASE NOTE: ALL TRANSMITTERS ARE SOLD SEPARATELY
Beltpack Microphone:
A range of microphones and pickups are available for the belt pack transmitter including tie clip mic,
lecture type headset, aerobics type headset, and guitar pickup. The belt pack microphone is equipped
with a line/mic switch.
Operation: (See Fig 4.)
1. Push to open the battery cover.
2. Insert 2 x 1.5V batteries into the battery holder according to polarity (+) and (-) indication marked
on the battery housing.
3. Replace Battery Cover.
4. Connect the microphone or guitar pickup to the unit.
5. Set the line / mic switch to match the sound source (line / mic). Line is for guitar input.
6. After setting the chosen frequency to the same frequency as the receiver, push the power switch to
"ON". The LED indicator will flash to indicate the unit is operational.
7. Push the power button to "OFF" when mic is not used, and remove the battery in microphone if not
used for a long time. This will prevent damage to the unit that a defective "leaking" battery may
cause.
8. If the LED indicator is permanently illuminated, the battery needs to be replaced.
9. If the LED indicator does not flash at all when first switched on then check battery is inserted
correctly and batteries are not completely flat.
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.
Fig 3.
1
2
3
5
REDBACK
®
Desktop Portable PA System
1. On/Off switch
6 Frequency select.
2. Low batt. LED
7. Gain control
3. Line/mic switch
8. Lavalier microphone
4. Cable
9. Tie clip
5. Antenna
10. Battery compartment
4
6
10
9
8
7
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