DUAL VHF WIRELESS SYSTEM
PDWM 2500
DUAL VHF WIRELESS SYSTEM
OPERATION MANUAL
DUAL VHF WIRELESS SYSTEM
OPERATION MANUAL
Thank you for buying the PDWM2500 Wireless System. Please
read through these operation instructions so you will know how
to operate your model properly. After you read it, put it away in a
safe place for future reference.
Precautions
Hand-held microphone
Receiver unit/operation
Installation
Trouble shooting
Specifications
Avoid exposure of the system to rain or moisture.
No user-serviceable parts inside the system. Refer all servicing to a qualified
technician only.
Handle the wireless system carefully, dropping or other shocks may cause
failure.
Avoid using the system where it may be subjected to heat, such as direct sunlight,
near radiators or other heat sources.
Should any liquid be spilt on the system, stop using it immediately. It may be
possible to dry the system, but you should have it checked by a qualified technician
before using it again.
Take care with the main power adapter and lead. If damaged in any way, do not use
the system and refer to a qualified technician for repair.
Only use the system with the supplied components. Do not attempt to use with any
other main power supply adapter .
If the is not going to be used for a while, remove the battery to
wireless system
prevent leakage. In the event of electrolyte leakage inside the battery compartment,
carefully remove the leakage with a damp cloth. Take care not to get battery
electrolyte in contact with your skin, however if it does, wash your hands under a
running tap. If electrolyte comes into contact with your eyes, seek medical advice
immediately.
Only replace the battery with the same or an equivalent type.
Please dispose of old batteries in an environmentally friendly manner in accordance
with the relevant legislation.
Do not use any solvents to clean any part of the .
wireless system
1
1. Unscrew the battery cover at the end of microphone, put a 9V battery into compartment with
correct polarities, then close the cover.
2. Move "ON/OFF" switch to "ON" position, "PWR" indic ator comes on b lue. If it does n't
come on, please check the voltage of battery or polarities.
this indicates the battery is dead. Please replace with a fresh battery.
The "MUTE" switch cuts off audio output without powering off the microphone. Move the switch
3.
down to engage the mute feature, and up to turn it off.
If the "LOW" indicator comes on,
2
3
1.Pull out the antennas A and B.
2.Insert one end of attached audio cable into "AF OUT" on rear panel, and the other end into
"MIC IN" or "AUX IN" of amplifier or mixer.
3.Connect the power adaptor from DC 12V of receiver to a main power socket.
4.Switch on the receiver. The power indicator comes on.
5.Switch on the microphone. The "RF" indicator on receiver comes on green. The "LEVEL"
indicator will light up Adjust the volume by VOL-A
and VOL-B control knobs.
when you speak into the microphone.
Make sure they are completely extended and vertical.
Using the supplied audio cable, connect from the AF Output jack socket to the
"MIC IN" / "LINE IN" socket on amplifier. Connect the mains power adaptor from
"DC 12V" jack to a suitable mains power socket.
Installation Location:
At least 3 ft. above ground level
At Least 3 ft. away from wall
4
The on air
indicator does
not light up
The wireless microphone is not
turned on.
The microphone receiver is not
turned on.
The microphone receiver is not
connected properly.
Turn on the wireless microphone
Turn on the microphone receiver
and the connected audio equipment
Turn on the microphone receiver
and the connected audio equipment
No sound
The sound is
distorted
A howling noise
heard from the
speakers.
The battery in the wireless
microphone is weak.
The microphone receiver is not
turned on .
The connected audio equipment is
not turned on.
The speakers/headphones. are not
connected to the audio equipment.
The battery in the wireless
microphone is weak.
The AUDIO OUT on the receiver
is not set correctly.
The distance between the wireless
microphone and speakers are too
close.
The battery in the wireless
microphone is weak
Replace the battery.
Turn on the microphone receiver
and the connected audio equipment.
Turn on the audio equipment.
Connect the speakers/
headphones
Replace the battery.
Adjust the volume controls.
Move the wireless microphone
away from the speakers or
change the direction of the
microphone.
Replace the battery.
5
A.Overall system
Oscillation mode: Quartz controlled
Carrier Frequency Range: VHF 160~270MHz
Frequency Stability: 30ppm
Modulation Mode: FM
Max Deviation: 75KHz
Dynamic Range: >100dB
S/N >60dB
T.H.D: <0.5%
Frequency Response: 80Hz~20KHz at 3dB
Operating range:
Operating Temperature: -20~50
B. Receiver
Sensitivity: 6dB V at S/N>20dB
Image Rejection: >50dB
De-emphasis: 50 s
Audio output level: 1V p-p
Audio Output Impedance: 600ohms
Power supply: DC 12V/ 200mA
Power Dissipation: <800mW
Up to 240 Feet
C. Transmitter
Mike capsule: Dynamic microphone
Pre-emphasis: 50 s
Antenna: Built-in housing
RF output power: <10mW
Spurious emission: >40dB
Battery: one 9V battery
Power Dissipation: <250mW
6
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