I .FUNCTION INTRODUCTION
Our
special wireless microphone system has these characteristics
as
the
following. Formanyreasons, such as lowfrequency, tradional wireless microphone
system are easyto be interfered especially because manymachines CD, VCD and
LD, erad-iate outtoo many harmonic.
To
solvethis problem we design this kind
professional wireless microphone
We
adopta series
of
measures to inprove its
functions, advance frequency, using multilevel high frequencyand mid frequency
narrowband filter, mulriple noise detect and control We also design itspecial
functions (tone key locked identity) to avoid interference from outside.
II.
MAIN FUNCTION
""Using
UHF
793.l-822.8MHz
band
to
avoid interferencing frequency.
""Using
multilevel high frequencyand mid frequency narrowband filter, so
as
to
dispel
any
possible interferencing signals.
""The
wireless microphone lookgood and are useful.
""There
is a volt indicating circuit
in
the microphone. Itcan tell you
if
itis necessary
to change the battery.
""A
speciallydesigned circuitswitch is on the phone. Itis
for
clearing upwaves
of
miscellaneous signals.
""All
use
SMT
technology
for
PCB.
""With
audio compressing-expanding technology, the machine can lowernoise
and increase the dynamicrange. Itcan also lowerreecho.
""Particular
noisedetectto avoid interferencefrom outside open the mute system.
""Choose
excellent chipset and high qualitycomponent, so that its timbre is very
good.
""Longest
distance
in
oopen:80m. Idealest, distance in open:50m.
""It
is suitable
for
stages ballrooms auditoria classrooms and families.
III.
OPERATION OF THE RECEIVER
1.lnstallthe antennaA&B, makethem be perpendicularwith the machine.
2.lnstall adapterto the DC input.
3.Connection
ofthe
audio output:
Oneend
of
the audio cable into "MIX"socketand otherend audio amplifier
or
mixer's"MIC IN" socket.
1
4.Push the powerswitch, the power-indicating light is lighted.
5.when
the microphone isworking the "SIGNAL"light
ofthe
receiver is lighted.
The receiveroutputvoice, volume
of
the receivercan be controlled by
adjusting thevolume knob.
*Attention
when
you
install
the
receiver
*It
should be more than 1metre high from thefloor.
*It
should be more than 1metre beyond the wall.
*Antennas
should be put
out
fully, otherwise it'll influence receiving signals.
IY.OPERATION
OF
THE MICROPHONE
1.0penthe batterycover,then put
in
the battery.Attention:The polarityshould be
right.
2.Tum on the microphoneand make sure the frequency showing same as receiver.
Iflowvoltage the screen will show "LBAT",then offitself.
3.Pressthe powerbutton 1
or
2 second then itwill off.
V. CONTROLAND FUNCTION LlST(Receiver)
2
