PDWM 2500
DUAL VHHF WIREELESS SSYSTEM
OPERATION MANUAL
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" indicator comes on blue. If it doesn't
come on, please check the voltage of battery or polarities. If the "LOW" indicator comes on,
this indicates the battery is dead. Please replace with a fresh battery.
3. The "MUTE" switch cuts off audio output without powering off the microphone. Move the switch
down to engage the mute feature, and up to turn it off.
2
1.Pull out the antennas A and B. Make sure they are completely extended and vertical.
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 when you speak into the microphone. Adjust the volume by VOL-A
and VOL-B control knobs.
3
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 wireless microphone is not
turned on.
Turn on the wireless microphone
The on air
indicator does
not light up
The microphone receiver is not
turned on.
Turn on the microphone receiver
and the connected audio equipment
Turn on the microphone receiver
and the connected audio equipment
The microphone receiver is not
connected properly.
The battery in the wireless
microphone is weak.
Replace the battery.
The microphone receiver is not
turned on .
Turn on the microphone receiver
and the connected audio equipment.
No sound
The connected audio equipment is
not turned on.
Turn on the audio equipment.
The speakers/headphones. are not
connected to the audio equipment.
Connect the speakers/
headphones
The battery in the wireless
microphone is weak.
Replace the battery.
The sound is
distorted
The AUDIO OUT on the receiver
is not set correctly.
Adjust the volume controls.
Move the wireless microphone
away from the speakers or
change the direction of the
microphone.
The distance between the wireless
microphone and speakers are too
close.
A howling noise
heard from the
speakers.
The battery in the wireless
microphone is weak
Replace the battery.
5
A.Overall system
Oscillation mode:
Carrier Frequency Range:
Frequency Stability:
Modulation Mode:
Max Deviation:
Dynamic Range:
S/N
T.H.D:
Quartz controlled
VHF 160~270MHz
30ppm
FM
75KHz
>100dB
>60dB
<0.5%
Frequency Response:
Operating range:
Operating Temperature:
80Hz~20KHz at 3dB
Up to 240 Feet
-20~50
B. Receiver
Sensitivity:
Image Rejection:
De-emphasis:
6dB V at S/N>20dB
>50dB
50 s
Audio output level:
Audio Output Impedance:
Power supply:
1V p-p
600ohms
DC 12V/ 200mA
<800mW
Power Dissipation:
C. Transmitter
Mike capsule:
Pre-emphasis:
Antenna:
RF output power:
Spurious emission:
Battery:
Dynamic microphone
50 s
Built-in housing
<10mW
>40dB
one 9V battery
<250mW
Power Dissipation:
6
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