Sonken WM-550R User manual

MODEL:WM-550R
DUAL-CHANNEL PROFESSIONAL WIRELESS MICROPHONE SYSTEM
1. DESCRIPTION
The Sonken UHF professional frequency-fixed wireless
microphone system is a system that operating in UHF band.
The traditional wireless microphone system is easy to be
interfered by the harmonic coming from the digital
apparatus such as CD player and VCD player. To solve the
problem, Sonken UHF professional wireless microphone
system adopts the unique technology of anti-interference to
protect the muting control system being opened by the
noises and signals from outside. And it also adopts the
selective multilevel narrow band filter for UF and IF to avoid
the system being interfered.
2. FEATURES
3. OPERATION OF THE RECEIVER
1. Install the antenna A & B to be Perpendicular to the
receiver.
2. Make sure the adaptor is in 12-18VDC, plug the power
cable in the power jack of receiver, and then plug the
adaptor in the socket.
3. Plug one end of the audio cable in the MIX output while
the other end in MIC IN or AUX IN of the amplifier or mixer.
4. Turn on the receiver, the light of the power in the middle of
panel will be on and the light of AF both in Channel A & B will
1. UHF Frequency Band. The carrier frequency is UHF
490-550MHz can avoid the frequency interference.
2. Narrow Band Filter. Selective Multilevel narrow band
filter for HF and IF
eliminate the possibility of interfering signals from outside.
3. Battery Fuel Indicate. There is a coulomb circuit in the
handheld
microphone indicates when the batteries should be
changed.
4. Surge Protector. The surge protector is in the circuit of
the switch helps
Clear up the impact wave.
5. Quartz Crystal Oscillator. Ensures the frequencies to
be most steady.
6. Audio Compander. Using audio compander to increase
the dynamic range
and lower the noises and reecho greatly.
7. Noise Squelch Circuitry. Protects the muting control
system being opened
by the noises and signals from outside.
8. Crystal and Components: All the crystal and
components in this wireless
microphone system are excellent.
9. Distance: Inside: 50m, Outside: 80m.
10.Places to Use: Suitable for stages for speech
reinforcement and singing,
House of worship, karaoke room, classroom, and home
amusement. 5. RECEIVER CONTROLS & INDICATORS
1. Power On / Off Switch: Turns the receiver on and off.
2. On/Off LED: Glows red when the receiver is on.
3. RF Level Indicator: One LED per therefore antenna
channel glows to indicate the microphone is on, and the
signal is being received.
4. Microphone Monitor Volume Control: Rotate this knob
to the right to increase microphone volume; rotate it to the
left to decrease microphone volume.5. 5.Antenna A and B:
50 ohm 1/4 wavelength.
6. Power Jack: Accepts power from the supplied AC adapter
15-18VDC.
7. Mix Output Connector: Provides unbalanced level
(Impedance: 600 ohm) output.
8. Unbalance Output Connectors: Provides unbalanced
level (Impedance: 600 ohm) output.
WM-550R
4. OPERATION OF THE MICROPHONE
1. Open the battery cover and install 1pieces of 9V
batteries and make sure the right polarity.
2. Cover the batteries Compartment.
3. Turn on the microphone, the light of power switch will be
on.
4. Turn the mute on for a pause of using the microphone,
and off for stop using.

1. COMPREHENSIVE PERFORMANCE
Carrier Frequency: UHF 490-550MHz
Frequency Stabilization: <±30ppm
Dynamic Range: >90dB
Total Harmonic Distortion: <0.5%
Frequency Response: 40Hz-15KHz ±3dB
Audio Output Level: Separate Type: 0-±400Mv
Mix Type: 0-200Mv
2. FIXED RECEIVER
Power Supply: DC17V
Power Consumption: 4W
Signal/Noise Ratio: >90dB
Image & Spurious Rejection: >80dB
Border Upon Channel Rejection: >80dB
Receiving Sensitivity: 10dBuV (SINAD=30dB)
3. HANDHELD MICROPHONE
Transmitter Power: 8.5mW
Modulation Type: FM, F3F
Max Deviation: ±25KHz
Spurious Emission: >40dB
Battery Voltage: 9V×1
Battery Life: 8 hours
PROBLEM AND SOLUTION
1. LED of the power is not on when the power is on.
-Make sure if the power jack is well connected with the power
cable of the adaptor.
2. LED of AF is twinkling but no sounds coming out.
-Check and make sure the volume is not in Min, and the audio
cable is well connected.
3. The distance of signal receiving becomes shorter and
signal becomes unsteady.
-Check and see if the antenna is well set up.
-Make sure the power of batteries is enough.
-The receiver should put in the right place-1 meter far from the
wall and 0.5 meter high
up the floor.
- Make sure there is no electromagnetic interference.
4. Timbre becomes worse
-Change the new batteries if the voltage is not enough.
-Make sure there is no electromagnetic interference.
-Make sure not to use the same wireless microphone system
with same frequencies at
the same time. You are advised to separate them at least 100
meters.
1
2
4
5
3
OPEN
6
7
8
UHF
TRANSMITTER
POWLOW
ON
CONTROL AND FUNCTION LIST (HANDHELD)
1.Grille:protects the microphone cartridge
and helps reduce breath sounds and wind noise
2.Battery level indicator: The LED flash when the
Battery power is low
3.Power supply indicator: The LED on is for power on.
4.Power and the audio mute switch
5.Battery cover