manual

1
Main features
Cautions
8
1.Using VHF 170-270 Mhz band to avert interferencing frequency.
2.Using multilevel high frequency and mid frequency narrowband filter, so
as to dispel any possible interferencing signals.
3.A specially designed circuit switch is on the phone.It is for clearing up
waves of miscellaneous signals
4.All use quartz crystal oscillating circuits, so the frequency is very steady.
5.With audio compressing-expanding technology, the machine can lower
noises and increase the dynamic range. It can also lower reecho.
6.It has channel separate outputing and mix outputing, and it can be connected
with the sound-adjusting stage and the karaoke enlarge.
7.Special tone key locked identity functions to avoid interference signal
from outside open the mute system.
8.There are mulriple noise detect circuit ,multi circuits, So it has strong
anti-jamming specialty.
9.Unifo rm cardioid pickup pattern isolates the main sound source and
minimizes background noise
10.Effective, built-in spherical wind and pop filter.
11.Longest distance in open :100m.Idealest distance in open: 50m
Thanks for purchasing our excellent wireless meeting microphone
products,please read this instruction carefully so that you can understand
how to operate the product you bought correctly, please store this book in
the safe place for reference in future.
1.Please ensure the host receiver in the place where is in good condition
for signal, without dead angle.
2.Please keep the transmitter of microphone from throwing,casting, and
so on, protecting from broken.
3.The reciever without water-proof, so please keep it from water or something
like this.
4.Please keep distance with or away electromagnetic field,high voltage
power net or big metal subjects.
5.Please switch off the transmitter when you change the battery.
6.Please put out the battery if you will not use the microphone for long time.
7.Please plug out the reciever if you will not use the microphone for long time.
8.Please get contact with the distributor of the products if there is problem
on broken or something inside.
9.Please note we will not provide the service of repair if customer open it by
themself without notice.
Some corem problems and their solutions are identified in the
table below. If you are unable to solve a problem, contact your dealer.
Problem Solution
No sound;RF light(s)
not glowing
No sound;
R F lights glowing.
Received signal is noisy c
contains extraneous sounds
sounds with transmitter on.
Noise from receiver with
transmitter off.
Momentary loss of sound as
transmitter is moved around
performing area.
Make sure the transmitter
POWER switch is ON and the receiver is plugged into a power source
Check battery.
Check receiver squelch setting.
Check receiver antenna connection(s).
Make sure antennas are in line of sight of transmitter.
Turn up receiver audio VOLUME control
Check for proper connection between receiver and karaoke unit
Check battery
Remove local. Sources of RF interference.
If using a guitar or other instrument, check connections.
Two transmitters may be operating on the same frequency. Locate and turn one off.
Signal may be too weak Repositior~antennas. If possible, move them closer to
transmitter.
Adjust receiver squelch control.
Remove local sources of RF interference.
Reposition receiver or antennas.
Reposition receiver and perform another"walkthrough"test and observe the
RF indicators. If audio dropouts persist, mark these"dead spots" in performing
area and avoid them during performance.
TROUBLESHOOTI N G FOREWORD