CAD Audio Multi Channel Wireless UHF Microphone System Operating instructions

Brand: CAD Audio

Model: Multi Channel Wireless UHF Microphone System

Category: Microphones

Type: Operating instructions

The CAD Audio Multi Channel Wireless UHF Microphone System is a professional audio solution for various applications, including stage performances, conferences, and teaching. With its UHF frequency transmission, it offers stable and clear sound quality, making it suitable for demanding environments. The system features a wide and clear LCD display that provides real-time information on signal strength, audio levels, and channel selection. It also boasts a high-tech automatic channel tracking (ACT) function, ensuring effortless synchronization between the receiver and transmitter.

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Multi-channel wireless

microphone system

UserInstructions

The specif ica tion won’t do and further fo r t he

improvement actual product will not be as pictured

Usestheunitbefore,pleasereadtheinstruetionmanualcarefullyand

keepthe instruction manual properlyinordertoneedinthefuture

UHF Microphone System

Product Introduction

Toassurethe bestperformance,pleaseread thismanualcarefully

and keep the manualin acafe place for future reference.

Directory

A.Product Introduction

UHF multi channel wireless system is a intelligent multi functional

wireless system, adopts UHF multi frequencies design, PLLtechnology,

ultra high frequency wireless transportation, with stable quality, long

working distance, clear sound quality, wide and clear LCD display and

fashionable outlook design.

A.Product Introduction .............................................

（1）Advantages .....................................................

（2）TechnicalParameters

.........................................

This system is suitable for professional stage, multi function hall,

conference rooms and teaching rooms.

1、Advantages

UHF Frequency Transmission

B.SystemComponents .............................................3

It adopts UHF (Ultra High Frequency) band transportation, with

frequency range for 610-960MHz.Frequencies can be designed

according to the regulations of the country in which they are actu-

ally used, so as to be suitable for various countries and regions.

C.FunctionalSpecifications

........................................4

（1）Receiver

.....................................................

（2）Handheld/Body PackTransmitter ........................

（3）ConferenceTransmitter ...................................

Micro-computer CPU Controlled

The hardware circuit of the whole system is controlled by the

CPU of the micro-computer. It can select frequency, display frequ-

ency and process frequency data etc. It can realize various functions

that are not easy to realize in traditional models.

D.SystemSettings

...................................................9

Wide and Clear LCD Display

With high performance, wide and clear LCD display, all operat-

ions can be displayed on the LCD screen to facilitate users to und-

erstand the working status of the system and set up the system.

Display content includes: radio frequency signal strength, audio

signal strength, channel and frequency, ACT working status, etc.

（1）Receiver Operating

..................................... 13

（2）FrequencySet

............................................. 17

（3）Receiver DisplaySettings

................................ 19

（4）Transmitter Set

High Precision PLL Technology

............................................

Compared with the quartz-controlled system, the PLL technology

with high precision phase-locked loop frequency synthesis has

higher frequency stability and excellent frequency selection char-

acteristics. It can realize multi-channel and multi-functional prof-

essional functions in the system.

E.Connection

.........................................................

F.Troubleshooting .................................................

Channel Selection

The system is with Channel Selection, and the user can set the working

channel according to the actual needs by very simple and conven-

ient operation.

Audio Output

The Audio output is equipped with XLR balanced output and

UHF Microphone System

TechnicalParameters

UHF Microphone System

System Components

Receiver

1/4 inch unbalanced output, which makes it easy for users to

connect to different external devices.

Automatic Channel Tracking (ACT)

The system has high-tech automatic channel tracking (ACT)

function. After the receiver has set up the receiving channel, the

transmitter frequency can be locked automatically and accur-

ately by infrared data transmission, so that the transmitting

frequency can be synchronized with the receiver.

Oscillation mode:PLL(Digital frequency synthesizer)

Stray Reject:≥80dB

Image Reject:≥80dB

Sensitivity:5dBuV

Audio Output Level:XLR Output Jack:250mV /600Ω

1/4” Output Jack:400mV/3kΩ

Working Voltage:DC 13.5-16V

Working Current:≤800mA

Anti-interference Multi Channels Design

The system uses a variety of anti-interference technology. It

has 160 non-interference frequencies as the factory default s-

etting. It is reasonable to design and convenient for users to use

multi-system at the same time. It is an ideal product for speech

and conference rooms.

Handheld Transmitter

RF Power Output：Max 30 mw

Oscillation mode:PLL(Digital frequency synthesizer)

Frequency stability：＜ 30ppm

Dynamic range：≥100dB(A)

Battery status indicator/Lower power warning

Frequency response：50Hz-15KHz

Max input pressure：130dB SPL

Microphone pickup：Moving coil

power supply：2 AA Size Battery

The battery power of handheld transmitter, bodypack trans-

mitter and conference transmitter can be displayed on their LCD,

and the warning is given when the battery power is low, promptly

reminding users to change batteries to ensure the normal oper-

ation of the system.

Conference/Body Pack Transmitters

RF Power Output：Max 30 mw

Modular Mic Capsule Design

Oscillation mode:PLL(Digital frequency synthesizer)

Frequency stability：＜ 30ppm

Dynamic range：≥100dB(A)

Frequency response：50Hz-15KHz

Max input pressure：130dB SPL

Microphone pickup：Capacitive

The Mic capsule of the handheld transmitter adopts modular

design, which can facilitate users to configure different sound q-

uality Mic capsules to adapt to different occasions.

2.TechnicalParameters

System

power supply：2 AA Size Battery

Frequency ranges:470.2MHz~607.7MHz

Modulation Mode:FSK

Available Band Width:500MHz

Channel number:100(or 200)

Channel spacing:250KHz

Frequency stabillity:±0.005%

Dynamic range:100dB

Peak deviation:±45KHz

Audio response:80Hz-15KHz(±3dB)

Comprehensive SNR:>105dB

Comprehensive Distortion:≤0.5%

Operating Temperature:-10℃~+40℃

B.System Components

All system include:

Receiver

Rack installation parts

Audio signal cable

1.5VAA Battery

2Channel

1set

(2set)

(1set)

(4)

(1set)

( ) ( )

2 or 4

(1)

4Channel

(1set)

(2set)

(1set)

(8)

(1set)

(2)or(4)

(1)

8Channel

(1set)

(none)

(1set)

(16)

(1set)

(4)

(1)

(

)

Power

Antenna

User Instruction

Transmitters System

(2set)

(4set)

(8set)

Handheld/Conference/Body Pack

UHF Microphone System

Functional Specifications

3.Modelandfunctiondescriptionandspecification(reference)partofthepanel

Two Channel:

Modelandfunctiondescriptionandspecification(reference)partofthepanel

Four Channel:

(1)

SET

POWER

VOLUME

3 1

LCD Display

SET

CHANNEL

（1）

（2）

（3）

POWER

VOLUME

Channel UHF Wireless Microphone PLL

(2)

RAFF

10 15 20 25 30 35 40

RAFF

10 15 20 25 30 35 40

25 -20 -15 10 -5 PEAK

-30

PEAK

-30

3 6

1 4 3

3 4 1 6

25 30

(

-30

25 -20 -15

PEAK

-30

25 -20 -15

PEAK

4 3

4 1 3 5

5 3 1 4

25 30 35

(

-30

25 -20 -15

PEAK

-30

25 -20 -15

PEAK

1 1

4 3

6 4 3 5

(5)

(6)

CHA

10 20 30 40

MUT E

649.320 CH

673.320 CH

MHZ AF-30-25 -15 -5

MHZ AF -30- 25 -1 5 -5

1 4

4 6

SET

POWER

CHA

10 20 30 4 0

MUTE

649.320 CH

673 .320 CH A

MHZAF -3 0 -2 5 -1 5 - 5

4 3 4 5

UH F W IR EL ESS M IC RO PH O NE SYS TE M

1 6

3 5

(7)

SET

POWER

1 4

2 1 4 2

UHF Microphone System

BackPanelfunctiondescription

Two Channel

Functional Specifications

Modelandfunctiondescriptionandspecification(reference)partofthepanel

Eight Channel:

LCD Display

SET

（1）

DC INPUT

（1）

ANTENNA-B

BAL-C OUT

BAL-B OUT

ANTENNA-A

SET

MIX CUT

POWER

Channel UHF Wireless Microphone PLL

1 5

4 8

3 6

（2）

DC INPUT

ANTENNA-B

BAL-C OUT

BAL-B OUT

ANTENNA-A

MIX CUT

SE T

SET

SE T

SET

（2）

POWER

Four Channel

SE T

SET

SE T

SET

4 3 4 5

DC INPUT

1.Receiver function and instructions

ANTENNA-B

MIX CUT

BAL-D OUT

BAL-C OUT

BAL-B OUT

BAL-A OUT

ANTENNA-A

Front Panel

Eight Channel

①VOLUMEcontrol：Adjusttheoutputvolume.Clockwiserotation,

thevolumeincrease,Counterclockwise,thevolumedecreases

②LCD Display：Displaysysteminthecurrentworkingstate.

③MenuButton：PressSETtoconfirmthecurrentoperation,orpressthis

buttontoentertheinfraredsynchronization.

ANTENNA-C

BAL-H OUT

BAL-GOUT

BAL-F OUT

BAL-E OUT

ANTENNA-A

DC INPUT

④UPandDownbutton：Presstoadjustthecurrentlyselected

ANTENNA-D

BAL-D OUT

BAL-C OUT

BAL-B OUT

BAL-AOUT

MIX CUT

ANTENNA-B

ornextoptiononthemenu.

⑤IRport：Cooperatewithsynchronousbutton,theinfraredsignaltransmission

tothetransmitter,receiverandtransmitterfrequencysynchronization.

⑥POWER Button：Pressthepowerswitch,openpowersupply,LCDisbright;

Inthelightthepowerswitchfor2seconds,thereceiverpowershutdown.

⑦Rackinstallationparts：Usedtoinstallthereceiverfixed19-inchstandard

rack.

1.Receiver function and instructions

Back Panel

①.Antennaconnector

②.DC Power Input

③.

Balanced Output:

⑧Channelswitchbutton：Choosetheswitchtotheneedtoadjustthe

④.Mixing 6.35mm Output

⑤.Squelch control

workingchannel(mainlyusedinyituofouryituoeight).

UHF Microphone System

Handheld instructions

Model:1108

Model:S200

Model:1106

Model:1106S

Model:G3

Model:1109

1.Microphone head Section: Including

Microphone Cover Net and Microphone

Cartiridge Module

Model:1107

2.LCD Display:Display working channels,

Battery, infrared frequency of operation, etc.

3.Switch button:Long press 5 seconds on/off

the phone

4.High-low power (RF).

5.IR window:used to Synchronous frequency

UHF Microphone System

Bodypack instructions

UHF Microphone System

Bodypack instructions

Wearing of Body Pack transmitter

Body pack Transmitters

Attachthepocketoftransmitteronthebeltwiththecriponthebackofthe

transmitter①，itcanalsobeuseonstrap/guitarstrapasshownby

thepicture②，Forbestperformance,thepocketoftransmitter

shouldbesecuredbyslidingthecripontothebelt/strapallthe

waydown.①。

（1）

Replace the battery

(A）

The using time of the two batteries is about 8

hours.When the red light of transmitter is flashing,

should be replaced Batteries, as shown in the

(A）

left picture.

（2）

Replace the battery(Used for Body Pack A)

Hold the arrow button to open the cover,

unwrapped battery installed.

(A)

①Antenna

Replace the battery(Used for Body Pack B)

②Power light

Figure 2: Press the arrow button, hold the bulge part of the battery holder

with your thumb, pull it down and pull out the battery holder.

Indicator: the power to open

③LCD Display

click here

Hold here

with your thumb

④IR Window：Receiving the infrared beam, make

Frequency synchronization. When using, should be at a time

Reveal a transmitter ir port

⑤Power button：ON/Power on；OFF/Power OFF

⑥3Pin（4Pin）Microphone line input (MIC/LINE)

（B）

UHF Microphone System

Conference instructions

UHF Microphone System

ReceiverOperation

OPERATION OF THE RECEIVER

Conference Transmitter(1)

1 Adjust the volume to the smallest before turned on the transmitter,

then turn on the receiver,the LCD lights up and alphanumeric displayed,

then LCD will display the channel and frequency of the receiver,press the

SET button can change the status.

2.When the transmitter is off,you should observe the RF andAF level,if

strong interference appeared,change the channel so as to avoid the in-

terference point.

3.Turn on the transmitter,RF level meter lights up,adjust the volume to

the properly,speak,AFlevel meter of receiver lights up,when there is no

sound or the level meter lights don’t shine,indicating that the system is

abnormal and should be maintained.

PROFESSIONAL CONFERENCE MICROPHONE

4.Press the POWER button for 2 or 3 seconds to turn off the receiver.

①MicCapsule

OPERATION MENUOF LCD(Used for two channel doublescreen)

②LCD Display:Display workingchannels,Battery,infraredfrequency ofoperation,etc.

③Infraredreceiverwindow:usedtochangethehairFrequencyofshootmachine.

④Power Button

1.Key functions and operations

Press the middle button"SET"can select menu and confirm your Settings.

Press"▲ " "▼”button to select or adjus the menu,and then“SET”

button to confirm your operation.

⑤3Pin（4Pin）Microphoneinputsocket

⑥BatteryHolder

Long press"▲ "" ▼"key to select frequency and channel quickly.

2.LCD display

Conference Transmitter(2)

A.Infrared frequency

Press the “SET”button when the LCD display "PRG IR"，2-3

seconds later,it will synchronize the frequency to the transmitter.

25 30

30 -2

-20

-15 -10

-5

PEAK

-30 -25 -20 -15 -10

-5

PEAK

MUTE

B.Getting into the operating menu

PRO F ESS I O N AL C ON F ERE N C E M ICR O P HO N E

25 30

Press the set button to get into the standard

display into the operating menu.

into “DISPLAY”menu

30 -25

-20

-15 -10

-5

PEAK

UHF Microphone System

Systemsettings

UHF Microphone System

Systemsettings

2-3seconds later,CHANNEL or FREQU

25 30

Press the ▲/▼button can change the

frequency.If you hold down a button,

the display cycles continuously The

-30 -25 -20 -15 -10

-5

PEAK

appears.

Press the ▲ / ▼button to adjust the

setting.By briefly pressing the ▲ / ▼

buttons,the display jumps either forwards or

backwards to the next setting continuously.

(Illustration:To display which menu depend

on the previous SET status.)

fast search function allows you to get

fast and easily to your desired setting

The new setting flashes on the display

until it to stored,or the transmitter will

work at the previous frequency.

25 30

30 -25

-20

-15 -10

-5

PEAK

25 30

30 -2

-20

-15

-10

-5

PEAK

D.Lock control

Press the SET button to store the se-

tting,or the screen flashing after 2-3 seconds

indicating that the settings are not available,

the transmitter still work at previous setting.

25 30

Press the SET button until LOCK

menu appears.Via the LOCK menu,

you can activate or deactivate

the lock mode.2-3 seconds later,

the screen display the left menu

-30 -25 -20 -15 -10

-5

PEAK

MUTE

（Instructions：Todisplay which menu

depend on the previous SET status）

25 30

C.Channel/Frequency display

-30 -25 -20 -15 -10

-5

PEAK

MUTE

CHANNEL DISPLAY

Press the SET button and select the

CHANNEL mode.This menu shows the cur-

rent channel.

Press the ▲/▼button can change

the channel,If you hold down a button,

the display cycles continuously.The fast

search function allows you toget fast and

easily to your desired setting.The new

setting flashes on the display until it is

stored,or the transmitter willwork at the

previous channel.

25 30

The Lock mode determines whether the

lock current job status of the receiver

(channel,sensitivity,the main display

contents,power switch,etc.)

25 30

30 -2

-20

-15

-10

-5

PEAK

-30 -25 -20 -15 -10

-5

PEAK

MUTE

25 30

-30

-2

-20 -15

-10

-5

PEAK

25 30

The LOCK ON mode prevent to change

current work status,including shut down.

It enables the receiver or transmitter not

to be accidentally programmed or swit-

ched during operation.

-30 -25 -20 -15 -10

-5

PEAK

MUTE

25 30

Todeactivate the lock mode,first press

-30 -25 -20 -15 -10

-5

PEAK

MUTE

the SET button.Then press the

▲ ▼

FREQUENT DISPLAY

buttons to select LOCK OFF,If you confirm

your selection by pressing the SET button,

LOCK OFF appears on the display and the

buttons can be operated as usual.

25 30

Press the SET button and select the

FREQU mode.This menu shows the current

frequency.

30 -2

-20

-15

-10

-5

PEAK

UHF Microphone System

Systemsettings

UHF Microphone System

Systemsettings

OPERATIONMENUOFLCD(Usedfortwochannelonlyonescreen)

D.SYSTEM LOCKED OPERATION

Press “▲” or “▼” button at the sa-

me time, the receiver will be locked,

and the lower left corner of the dis-

play will appear symbols, only allo-

ws you to change the frequency of

the system.And press “▲” or “▼”

button at the same time again to re-

lease the lock status, the symbols

will disappear. See figure in the left.

CHAN

0 18

10 20 30 40

CHAN

0 18

10 20 30 40

MUTE

Normal work condition display

649.320 CH

673.320 CH

CHAN

0 18

10 20 30 40

CHAN

0 18

10 20 30 40

MUTE

649.320 CH

673.320 CH

MHZ AF -30-25 -15 -5

shows like left picture：

MHZ

AF -30 -25 -15 -5

A.Infrared frequency

Press the “SET”button when

the LCD display "F---"，2-3

seconds later,it will synchronize

the frequency to the transmitter.

CHAN

0 18

10 20 30 40

CHAN

0 18

10 20 30 40

MUTE

F- - - - - - CH

673.320 CH

MHZ

AF -30-25 -15 -5

AF -30 -25 -15 -5

B.SCAN

2.Systemsettings(suitablefordualchannelmodels)

（1）SingleSystemSettings

FrequencySelectionforthereceiver

Long press“SET”button，Freq-

uency digits are beating step by s-

tep. The upper left corner square

box moves along the horse-racing

line and the machine scans the si-

gnal of the surrounding environm-

ent. See figure in the left:

10 20 30 40

CHAN

0 18

10 20 30 40

MUTE

649.320 CH

673.320 CH

MHZ

AF -30 -25 -15 -5

Frequency Selection

Press“▲”or“▼”button to choose frequency, and Press “SET”

button to confirm frequency you choose.

Frequency setting for transmitter

See Figure 4（Dual display ）/See Figure 5（Single display ）

C.CHANNEL/FREQUENCY

Turn on the power of the transmitter.

Press the ▲/▼button can cha-

nge the frequency.If you hold do-

wn a button,the display cycles c-

ontinuously.The fast search func-

tion allows you to get fast and

easily to your desired setting.

The new setting flashes on the

display until it to stored,or the tran-

smitter will work at the previous fr-

equency.

Put the IR port of the handheld transmitter towards to the IR window

of the receiver, or open the battery holder of the transmitter to expose

the IR port of the handheld transmitter towards to IR window of the

receiver, press SET button to synchronize the frequency. When RF

ignal appears, the system is working normally.

CHAN

0 18

10 20 30 40

CHAN

0 18

10 20 30 40

MUTE

649.320 CH

673.320 CH

MHZ

AF -30 -25 -15 -5

SET

POWER

VOLUME

VOLUME B

（Figure 4）

UHF Microphone System

Systemsettings

UHF Microphone System

Systemsettings

Turn on the power of the transmitter

CHA

MUT E

10 20 30 40

MUT E

10 20 30 40

649.320 CH

673.320 CH A

MHZ AF -30 -25 -1 5 -5

MHZ AF -30- 25 -1 5 -5

Open the batter holder of the transmitter to expose the IR port, and put

the IR port towards to IR window of the receiver, pressA, B, C, D button

to switch to relevant channel, and press “SET” button to synchronize

the frequency.

（Figure 5）

When there is RF sigal appear, the system is working normally.

(2)Multi System Settings

LCDDisplay

(suitable for multi units using at the same time)

CHANNEL

Channel UHF W ire less Microphone PLL

A.Turn on the power of all receivers, and meanwhile turn off all the

transmitters.

B.Set different frequency for all receivers

C.Turn on the transmitters of the first receiver

D.Follow the guidance of single system setting to set the frequency

（Figure 6）

Repeat the operations to each system.

（2）Multi System Settings

Pls pay attention; you can only expose IR port of one transmitter

when you synchronize the frequency with the system.

A.Turn on the power of all receivers, and meanwhile turn off all the

transmitters.

！

B.Set different frequency for all receivers

C.Turn on the transmitters of the first receiver

D.Follow the guidance of single system setting to set the frequency

2.SystemSettings(suitablefor4channelsand8channelsmodels)

（1）SingleSystemSettings

FrequencySelectionforthereceiver

Repeat the operations to each system.

Frequency Selection

Pls pay attention; you can only expose IR port of one transmitter

when you synchronize the frequency with the system.

！

（single LCD models）, pressA, B, C, D button to switch to the relevant

channel, and press “▲”or“▼”button to choose the suitable frequ-

ency and press “SET”button to confirm the frequency.

(2 and 4 LCD models), Press “▲”or“▼”button according to LCD

of the relevant channel to choose suitable frequency, and press “SET”

button to confirm the frequency.

3.Receiver Settings

Any option displayed on the LCD screen will be locked automatically

after six automatic flickers.

10 15 20 25 30 35 40

CHAN

0 18

10 20 30 40

CHAN

0 18

10 20 30 40

MUTE

-30 -25 -20 -15 -10 -5

PEAK

649.320 CH

673.320 CH

CH 031

MHZ

-30

-5

MHZ AF -30 -25 -15 -5

-25 -15

IR Synchronization for the transmitters (figure 6)

（Figure 7）

UHF Microphone System

Receiver Settings

UHF Microphone System

Transmitter Settings

（1）LCDInstructionforHandheld/Bodypacktransmitters（Figure9）

①CHANNEL:displaycurrentworkingchannel

②BATT:DisplaytheRemainingElectricityofTransmitterBattery.Whenthebatt-

erypowerislow,thesignflashes.Thebatteryshouldbereplacedimmediatelyto

ensurethenormaloperationofthetransmitter.

（Figure 8）

（1）Receiver LCD instruction:

（2）LCDInstructionforConferenceTransmitter（Figure11）

2 channels (figure 7), 4 channels (figure 8)

①FREQ:displaycurrentworkingfrequency

①RF signal strength display (RF)

②CHANNEL:displaycurrentworkingchannel

②AF signal strength display (AF)

③BATT:DisplaytheRemainingElectricityofTransmitterBattery.Whenthebatt-

erypowerislow,thesignflashes.Thebatteryshouldbereplacedimmediatelyto

ensurethenormaloperationofthetransmitter.

③CHANNEL: display the current working channel, when you choose

this option, it will flick automatically.

④FREQUENCY: display the current working frequency, when you

choose this option, it will flick automatically.

（3）IR Synchronization for the transmitter

Transmitter can synchronize the working frequency automatically.

Please check the guidance above for the IR synchronization for the

transmitters from the single system setting.

（2）CHANNELSelection(suitablefor4and8channels)

A. Channel selection: press A or B or C or D button 1 time

and press “ ▲ ” or“ ▼ ” button to choose the certain ch-

annel, and press “ ▲ ” or“ ▼ ” button to choose suitable

channel, you can wait for the LCD auto flick for 6 times to

synchronize the frequency or you can press SET button to

synchronize the frequency.

E.Tipsforimprovingsystemperformance

*lThetransmitterandantenna should be keptin an accessible linear

relative position.

*lDonot placethereceiverclosetothemetalsurfaceorclosetoany

digitaldevice(suchasCD player,computer,etc.).

*lThereceivershould beprotected above 1M fromthe groundand not

closetothewallasfaraspossible.

4.Transmitter Settings

CHB

CHAN

*lTransmittingdevices suchas cellularphones andbidirectionalradios

interferewithaudiotransmission.Transmittersand receivers should

be kept away fromthese devices and otherpotential sourcesof inter-

ference.

（Figure 9）

（Figure 10）

（Figure 11）

UHF Microphone System

F.Connection

Connection

UHF Microphone System

Troubleshooting

G.Troubleshooting

Problem

Possible cause

1.Connection instructions for dual channel models (figure 12)

Transmitter’s batteries are exh-

austedor DC in is not connected

well.

No operation

indication

DC INPUT

ANTENNA-B

BAL- OUT

BAL

OUT

ANTENNA-A

MIX CUT

Transmitter and receiver are not

at the same channel

Transmitter is out of range

No RF signal

（Figure12)

Transmitter is muted(”MUTE”)

RF signal available, Receiver’s squelch threshold is

no audio signal,“M- adjusted too hight

ute” appears on the

2.Connection instructions for four channel models (figure 13)

display panel

Transmitter doesn’t transmit a

pilot tone

DC INPUT

ANTENNA-B

MIX CUT

BAL-D OUT

BAL-C OUT

BAL-B OUT

BAL-AOUT

ANTENNA-A

Transmitter sensitivity is adjus-

ted too low

Audio signal has a

high level of back-

ground noise

Receiver’sAF output level is a-

djusted too low

（Figure13)

3.Connection instructions for four channel models (figure 13)

Transmitter sensitivity is adjus-

ted too high

Audio signal is dis-

trorted

Receiver’sAF output level is a-

djusted too high

ANTENNA-C

BAL-HOUT BAL-GOUT

BAL-FOUT

BAL-EOUT

ANTENNA-A

Transmitter set at a low-power

DCINPUT

ANTENNA-D

BAL-DOUT

BAL-COUT

BAL-BOUT

BAL-AOUT

Squelch is too high

MIX CUT

ANTENNA-B

The use of short

distance,Signal

instrbiity

Receiver antenna set improper

Surrounded by strong electrom-

agnetic interference

（Figure14)

CAD Audio Multi Channel Wireless UHF Microphone System Operating instructions

Brand: CAD Audio

Model: Multi Channel Wireless UHF Microphone System

Category: Microphones

Type: Operating instructions

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CAD Audio Multi Channel Wireless UHF Microphone System Operating instructions

CAD Audio Multi Channel Wireless UHF Microphone System Operating instructions

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