CAD AUDIO Multi Channel Wireless UHF Microphone System Instructions
- June 4, 2024
- CAD Audio
Table of Contents
Multi Channel Wireless UHF Microphone System
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Multi-channel wireless microphone system
User Instructions
T h e s p e c i f i c a t i o n w o n’t d o a n d f u r t h e r f o r t h e improvement actual product will not be as pictured
Uses the unit before, please read the instruetion manual carefully and keep the instruction manual properly inorder to need in the future
UHF Microphone System
Directory
1 A.Product Introduction ……………………………………… 1 1Advantages ……………………………………………..
2Technical Parameters 2 …………………………………..
B.System Components ………………………………………3
C.Functional Specifications ………………………………….4 4 1Receiver……………………………………………..
2Handheld/Body Pack Transmitter ……………………8 3Conference Transmitter
……………………………..1 2
D.System Settings ……………………………………………9 1Receiver Operating ………………………………. 1 3
2Frequency Set ……………………………………… 1 7 3Receiver Display Settings ………………………….. 1 9
4Transmitter Set …………………………………….. 2 0
E.Connection ………………………………………………… 2 1
2 2 F.Troubleshooting ………………………………………….
UHF Microphone System
Product Introduction
To assure the best performance,please read this manual carefully and keep the
manual in a cafe place for future reference.
A.Product Introduction UHF multi channel wireless system is a intelligent
multi functional
wireless system, adopts UHF multi frequencies design, PLL technology, ultra
high frequency wireless transportation, with stable quality, long working
distance, clear sound quality, wide and clear LCD display and
fashionable outlook design. This system is suitable for professional stage,
multi function hall,
conference rooms and teaching rooms. 1 Advantages
UHF Frequency Transmission
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 actually used, so as to be suitable for various
countries and regions.
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 frequency and
process frequency data etc. It can realize various functions that are not easy
to realize in traditional models.
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 understand 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.
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 characteristics. It can realize multi-
channel and multi-functional professional functions in the system.
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 convenient operation.
Audio Output The Audio output is equipped with XLR balanced output and
1
UHF Microphone System
Technical Parameters
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 accurately by infrared data transmission, so that the
transmitting frequency can be synchronized with the receiver.
Anti-interference Multi Channels Design The system uses a variety of anti-
interference technology. It
has 160 non-interference frequencies as the factory default setting. 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.
Battery status indicator/Lower power warning
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 operation of the system.
Modular Mic Capsule Design
The Mic capsule of the handheld transmitter adopts modular design, which can
facilitate users to configure different sound quality Mic capsules to adapt to
different occasions.
2.Technical Parameters System
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
2
UHF Microphone System
System Components
Receiver
Oscillation mode:PLL(Digital frequency synthesizer) Stray Reject:80dB Image
Reject:80dB Sensitivity:5dBuV Audio Output Level:XLR Output Jack:250mV /600
1/4″ Output Jack:400mV/3k Working Voltage:DC 13.5-16V Working Current:800mA
Handheld Transmitter
RF Power OutputMax 30 mw Oscillation mode:PLL(Digital frequency synthesizer)
Frequency stability30ppm Dynamic range100dB(A) Frequency response50Hz-15KHz
Max input pressure130dB SPL Microphone pickupMoving coil power supply2 AA Size
Battery
Conference/Body Pack Transmitters
RF Power OutputMax 30 mw Oscillation mode:PLL(Digital frequency synthesizer)
Frequency stability30ppm Dynamic range100dB(A) Frequency response50Hz-15KHz
Max input pressure130dB SPL Microphone pickupCapacitive power supply2 AA Size
Battery
B.System Components
All system include: Receiver Rack installation parts Audio signal cable 1.5V
AA Battery
Power Antenna User Instruction Transmitters System
Handheld/Conference/Body Pack
2 Channel (1set) (2set) (1set) (4)
( 1set)
() () 2( 2soer t)4 (1)
4 Channel (1set) (2set) (1set) (8) (1set)
(2)or(4) (1)
(4set)
3
8 Channel (1set) (none) (1set) (16) (1set) (4) (1) (8set)
UHF Microphone System
Functional Specifications
3.Model and function description and specification (reference) part of the panel Two Channel:
(1)
SET
13
4
2
5
SET
VOLU ME B
PO W E R
2
4
31 6
(2)
5 10 15 20 25 30 35 40 RAFF
-30 -25 -20 -15 -10 -5 0 PEAK
CH 031M
5 10 15 20 25 30 35 40 RAFF
-30 -25 -20 -15 -10 -5 0 PEAK
CH 031M
1 43 5
2
5 3416
(3) (4) (5) (6) (7)
5 10 15 20 25 30 35 40 RF
AF -3 0 -25 -2 0 -1 5 -1 0 -5 0 PEAK
CH
031M HZ
7 4135
2
5 10 15 20 25 30 35 40 RF
AF -3 0 -25 -2 0 -1 5 -1 0 -5 0 PEAK
CH
031M HZ
6
2
5 31 4
5 10 15 20 25 30 35 40 RF
AF -30 -25 -20 -15 -10 -5 0 PEAK
CH
031M H Z
5 10 15 20 25 30 35 40 RF
AF -30 -25 -20 -15 -1 0 -5 0 PEAK
CH
031M H Z
1
2
4 3 643 5
2
1
3
3
CHA N
0 18
MU TE
RF 5 10 20 30 40
649.320 CH A
MHZ AF -30 -2 5 -15 -5 0
CHA N
08
MU TE
RF 5 10 20 30 40
673.320 CH A
MHZ AF -30-25 -15 -5 0
2
5
3
14
1 46 3
1
4
CHAN
RF 5 10 20 30 40
0 1 8 MUTE
649.320 CH A
MHZ AF -3 0 – 2 5 – 1 5 – 5 0
CHAN
08
MUTE
RF 5 10 20 30 40
673 .320 CH A
MHZ AF -3 0 -2 5 -1 5 – 5
0
UH F W IR ELE SS M IC RO PH O N E SYS TE M
5
2
5
4 16
35
35
POWER
7
6
SE T
SE T
1 4 21 4 2
4
UHF Microphone System
Functional Specifications
Model and function description and specification (reference) part of the panel Four Channel:
1
VOL UME A
VOL UME B
VOLU ME C
VOL UME D
CHANNEL
LCD Display
CHANNEL
CHANNEL
CHANNEL
AF
AF
AF
AF
RF
RF
RF
RF
4 Chan nel UH F W ireless Microphone PLL
SET
A
B
C
D
PO W E R
11 1 1 5
2
48
36
43
43
2
7
5
2
11 6 5
2
11
3
POW ER
7 6
1
1
SET
SET
SE T
SE T
4 3 45
4 3 45
5
UHF Microphone System
Functional Specifications
Model and function description and specification (reference) part of the panel Eight Channel:
1
7
LCD Display 1
SET
LCD Display 2 8 Chan nel UH F W ireless Microphone PLL
A
B
C
D
SET
A
B
C
D
PO W E R
1 1 1 15
2
4 8 36
2
PO W E R
SE T SE T
S ET S ET
SE T SE T
S ET S ET
7
1
1
4 3 45
1.Receiver function and instructions
Front Panel VOLUME controlAdjust the output volume. Clockwise rotation,
the volume increase, Counterclockwise, the volume decreases
LCD DisplayDisplay system in the current working state. Menu ButtonPress SET
to confirm the current operation, or press this
button to enter the infrared synchronization. UP and Down buttonPress to
adjust the currently selected
or next option on the menu.
IR portCooperate with synchronous button, the infrared signal transmission to the transmitter, receiver and transmitter frequency synchronization.
POWER ButtonPress the power switch, open power supply, LCD is bright; In the light the power switch for 2 seconds, the receiver power shut down.
Rack installation partsUsed to install the receiver fixed 19-inch standard
rack.
Channel switch buttonChoose the switch to the need to adjust the
working channel (mainly used in yituo four yituo eight).
6
UHF Microphone System
Back Panel function description Two Channel
Functional Specifications
1
DC INPUT
ANTENNA-B
BAL-C OUT
MIX CUT
BAL-B OUT
2
15 3 43
5
ANTE N NA – A
1
2
Four Channel
ANTENNA-B
1
DC INPUT BAL-C OUT
23
MIX CUT
4
BAL-B OUT
3
ANTENNA-A
1
Eight Channel
ANTENNA-B
1
DC INPUT
2
MIX CUT
4
BAL-D OUT
BAL-C OUT
BAL-B OUT
BAL-A OUT
3
ANTENNA-A
1
ANTENNA-C
ANTENNA-D
DC INPUT
BAL-H OUT BAL-G OUT BAL-F OUT BAL-E OUT
ANTENNA- A
MIX CUT
BAL-D OUT BAL-C OUT BAL-B OUT BAL-A OUT
ANTENNA- B
12
4
3
1
1.Receiver function and instructions
Back Panel
.Antenna connector
.DC Power Input
. Balanced Output:
.Mixing 6.35mm Output
.Squelch control
7
UHF Microphone System
Model:1108
1
3
5 4
Handheld instructions
Model:S200 1
3
UHF Microphone System
Model:1106
1
2 3 5 4
Handheld instructions
Model:1106S
1
2 3 5 4
Model:G3 1
3
Model:1109 1
3 4
8
Model:1107 1
IR
3
2
IR
5
4
1.Microphone head Section: Including Microphone Cover Net and Microphone Cartiridge Module 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
9
UHF Microphone System
Body pack Transmitters
1
2 4
3
1
Body pack instructions
12 5
6
UHF Microphone System
Body pack instructions
Wearing of Body Pack transmitter
Attach the pocket of transmitter on the belt with the crip on the back of the
transmitterit can also be use on strap/guitar strap as shown by the pictureFor
best performance, the pocket of transmitter should be secured by sliding the
crip on to the belt/strap all the way down.
1 5
2
2
1
6
Antenna Power light
Indicator: the power to open LCD Display IR WindowReceiving the infrared beam,
make
Frequency synchronization. When using, should be at a time Reveal a
transmitter ir port Power buttonON/ Power onOFF/ Power OFF 3Pin4PinMicrophone
line input (MIC/LINE)
10
(A
Replace the battery
( TAhe 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
left picture.
Replace the battery(Used for Body Pack A)
(A) Hold the arrow button to open the cover, unwrapped battery installed.
Replace the battery(Used for Body Pack B)
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.
click here
Hold here with your thumb
B
11
UHF Microphone System
Conference instructions
Conference Transmitter(1)
1
6
PROFESSIONAL CONFERENCE MICROPHONE
3
25 4
Mic Capsule LCD Display:Display working channels,Battery, infrared frequency
of operation, etc. Infrared receiver window:used to change the hair Frequency
of shoot machine. Power Button
3Pin4PinMicrophone input socket
Battery Holder
Conference Transmitter(2)
1
6
PR O F ESS I O N AL C O N F ER E N C E M IC R O PH O NE
3
5 2 4
12
UHF Microphone System
Receiver Operation
OPERATION OF THE RECEIVER
. t1heAndtjuursnt othnethveorleucmeeivetor,tthhee
LsCmDallliegshttsbuepfoarnedtaulrpnheadnuonmethriec dtriasnpslamyiettde,r,
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 and AF level,if strong interference appeared,change the channel so as
to avoid the interference 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. 4.Press
the POWER button for 2 or 3 seconds to turn off the receiver.
OPERATION MENU OF LCD(Used for two channel double screen) 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. Long press” “” “key to select frequency and channel quickly.
2.LCD display 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.
RF
5 10 15 20 25 30 35 40
AF -30 -2 5 -20 -15 -10 -5 0 PEAK
pr g i r M MUTE H Z
RF
5 10 15 20 25 30 35 40
AF -30 -25 -20 -15 -10 -5 0 PEAK
M H Z
B.Getting into the operating menu
5 10 15 20 25 30 35 40 RF
AF
DI S P L -30 -25 -20 -15 -10 -5 0 PEAK M HZ
Press the set button to get into the standard display into the operating menu.
into “DISPLAY”menu
13
UHF Microphone System
System settings
2-3seconds later,CHANNEL or FREQU
appears. Press the / button to adjust the
5 10 15 20 25 30 35 40 RF
AF
F REQU -30 -25 -20 -15 -10 -5
0 PEAK MH Z
setting.By briefly pressing the / buttons,the display jumps either forwards or backwards to the next setting continuously.
5 10 15 20 25 30 35 40 RF
AF
-30 -2 5 -20 -15 -10 -5 0 PEAK
CHANNL
M H Z
(Illustration:To display which menu depend on the previous SET status.)
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.
C.Channel/Frequency display
5 10 15 20 25 30 35 40 RF
AF
-30 -2 5 -20 -15 -10 -5 0 PEAK
CHANNL
M HZ
5 10 15 20 25 30 35 40 RF
AF
-30 -2 5 -20 -15 -10 -5 0 PEAK
CH 001
MH Z
CHANNEL DISPLAY
Press the SET button and select the CHANNEL mode.This menu shows the current
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.
5 10 15 20 25 30 35 40 RF
AF
-30 -2 5 -20 -15 -10 -5 0 PEAK
FREQU
MH Z
FREQUENT DISPLAY
Press the SET button and select the FREQU mode.This menu shows the current
frequency.
14
UHF Microphone System
System settings
5 10 15 20 25 30 35 40 RF
AF
-30 -25 -20 -15 -10 -5 0 PEAK
M HZ
D.Lock control
Press the / button can change the frequency.If you hold down a button, the
display cycles continuously.The 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.
RF
5 10 15 20 25 30 35 40
AF -30 -25 -20 -15 -10 -5 0 PEAK
M MUTE H Z
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
RF
5 10 15 20 25 30 35 40
AF -30 -25 -20 -15 -10 -5 0 PEAK
M MUTE H Z
InstructionsTo display which menu depend on the previous SET status
RF
5 10 15 20 25 30 35 40
AF -30 -25 -20 -15 -10 -5 0 PEAK
M MUTE H Z
The Lock mode determines whether the lock current job status of the receiver (channel,sensitivity,the main display contents,power switch,etc.)
RF
5 10 15 20 25 30 35 40
AF -30 -25 -20 -15 -10 -5 0 PEAK
M MUTE H Z
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 switched during operation.
RF
5 10 15 20 25 30 35 40
AF -30 -25 -20 -15 -10 -5 0 PEAK
M MUTE H Z
To deactivate the lock mode,first press the SET button.Then press the /
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.
15
UHF Microphone System
System settings
OPERATION MENU OF LCD(Used for two channel only one screen)
CHAN
0 18
MUTE
RF 5 10 20 30 40
649.320 CH A
MHZ AF -30 -25 -15 -5 0
CHAN
0 18
MUTE
RF 5 10 20 30 40
673.320 CH A
MHZ AF -30 -25 -15 -5 0
Normal work condition display shows like left picture
A.Infrared frequency
CHAN
0 18
MUTE
RF 5 10 20 30 40
F- – – – – – CH A
MHZ AF -30 -25 -15 -5 0
CHAN
0 18
MUTE
RF 5 10 20 30 40
673.320 CH A
MHZ AF -30 -25 -15 -5 0
Press the “SET”button when the LCD display ” F—“2- 3 seconds later,it will synchronize the frequency to the transmitter.
B.SCAN
RF 5 10 20 30 40
MUTE
649.320 CH A MHZ AF -30 -25 -15 -5 0
CHAN
0 18
MUTE
RF 5 10 20 30 40
673.320 CH A
MHZ AF -30 -25 -15 -5 0
Long press”SET”buttonFrequency digits are beating step by step. The upper left corner square box moves along the horse-racing line and the machine scans the signal of the surrounding environment. See figure in the left:
C.CHANNEL/FREQUENCY
CHAN
0 18
MUTE
RF 5 10 20 30 40
649.320 CH A
MHZ AF -30 -25 -15 -5 0
CHAN
0 18
MUTE
RF 5 10 20 30 40
673.320 CH A
MHZ AF -30 -25 -15 -5 0
Press the / button can change the frequency.If you hold down a button,the display cycles continuously.The 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.
16
UHF Microphone System
System settings
D.SYSTEM LOCKED OPERATION
CHAN
0 18
MUTE
RF 5 10 20 30 40
649.320 CH A
MHZ AF -30 -25 -15 -5 0
CHAN
0 18
MUTE
RF 5 10 20 30 40
673.320 CH A
MHZ AF -30 -25 -15 -5 0
Press “” or “” button at the same 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.
2.System settings (suitable for dual channel models)
1Single System Settings Frequency Selection for the receiver Frequency
Selection
Press””or””button to choose frequency, and Press “SET”
button to confirm frequency you choose.
Frequency setting for transmitter See Figure 4Dual display /See Figure 5Single
display Turn on the power of the transmitter. 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.
VOL UME A
SET
SET
VOLU ME B
PO W E R
Figure 4
17
UHF Microphone System
CHA N
0 18
MU TE
RF 5 10 20 30 40
649.320 CH A
MHZ AF -30-25 -15 -5 0
CHA N
08
MU TE
RF 5 10 20 30 40
673.320 CH A
MHZ AF -30 -2 5 -15 -5 0
System settings
Figure 5
(2)Multi System Settings (suitable for multi units using at the same time)
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
Repeat the operations to each system.
Pls pay attention; you can only expose IR port of one transmitter when you synchronize the frequency with the system.
2.System Settings (suitable for 4 channels and 8 channels models) 1Single
System Settings Frequency Selection for the receiver Frequency Selection
single LCD models, press A, B, C, D button to switch to the relevant channel,
and press “”or””button to choose the suitable frequency 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.
IR Synchronization for the transmitters (figure 6)
18
UHF Microphone System
System settings
Turn on the power of the transmitter Open the batter holder of the transmitter to expose the IR port, and put the IR port towards to IR window of the receiver, press A, B, C, D button to switch to relevant channel, and press “SET” button to synchronize the frequency. When there is RF sigal appear, the system is working normally.
CHANNEL
LCD Display
CHANNEL
CHANNEL
CHANNEL
AF
AF
AF
AF
RF
RF
RF
RF
4 C h a n ne l U H F W ire le ss M icro p h o n e P L L
Figure 6
2Multi System Settings
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
Repeat the operations to each system.
Pls pay attention; you can only expose IR port of one transmitter when you synchronize the frequency with the system.
3.Receiver Settings
Any option displayed on the LCD screen will be locked automatically after six
automatic flickers.
3
1
1
5 10 15 20 25 30 35 40 RF
AF
-30 -25 -20 -15 -10 -5 0 PEAK
2
CH
031M H Z
CHAN
0 18
MUTE
RF 5 10 20 30 40
649.320 CH A
MHZ AF -30 -25 -15 -5 0
CHAN
0 18
MUTE
RF 5 10 20 30 40
673.320 CH A
MHZ AF -30 -25 -15 -5 0
3
12
4
4
2
Figure 7
19
UHF Microphone System
Receiver Settings
1
2
3
Figure 8
1Receiver LCD instruction: 2 channels (figure 7), 4 channels (figure 8)
RF signal strength display (RF) AF signal strength display (AF) CHANNEL: display the current working channel, when you choose this option, it will flick automatically. FREQUENCY: display the current working frequency, when you choose this option, it will flick automatically.
2CHANNEL Selection (suitable for 4 and 8 channels)
A. Channel selection: press A or B or C or D button 1 time an d pr es s ” ”
or” ” bu t t on t o ch o o s e t he ce r t ai n ch a n n e l , a n d p r e s s
” ” o r” ” b u t t o n t o c h o o s e s u i t a b l e 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.
4.Transmitter Settings
2
CHB
CHAN
1
2
Figure 9
2
Figure 10
3 4
2
Figure 11
20
UHF Microphone System
Transmitter Settings
1LCD Instruction for Handheld/Bodypack transmitters Figure 9
CHANNEL: display current working channel
BATT: Display the Remaining Electricity of Transmitter Battery. When the
battery power is low, the sign flashes. The battery should be replaced
immediately to ensure the normal operation of the transmitter.
2LCD Instruction for Conference TransmitterFigure 11
FREQ: display current working frequency CHANNEL: display current working
channel BATT: Display the Remaining Electricity of Transmitter Battery. When
the battery power is low, the sign flashes. The battery should be replaced
immediately to ensure the normal operation of the transmitter.
3IR 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.
E.Tips for improving system performance
lThe transmitter and antenna should be kept in an accessible linear relative position.
lDo not place the receiver close to the metal surface or close to any digital device (such as CD player, computer, etc.).
lThe receiver should be protected above 1M from the ground and not close to the wall as far as possible.
lTransmitting devices such as cellular phones and bidirectional radios interfere with audio transmission. Transmitters and receivers should be kept away from these devices and other potential sources of interference.
21
UHF Microphone System F.Connection
Connection
1.Connection instructions for dual channel models (figure 12)
DC INPUT
ANTENN A-B
BAL- OUT
MIX CUT
BAL – OUT
ANTENNA-A
Figure12) 2.Connection instructions for four channel models (figure 13)
ANTENNA-B
DC INPUT
MIX CUT
BAL-D OUT
BAL-C OUT
BAL-B OUT BAL-A OUT
ANTENNA-A
Figure13) 3.Connection instructions for four channel models (figure 13)
ANTENNA-C
DC INPUT
ANTENNA-D
BAL-H OUT BAL-G OUT BAL-F OUT BAL-E OUT
ANTENNA-A
MIX CUT
BAL-D OUT BAL-C OUT BAL-B OUT
BAL-AOUT
ANTENNA-B
Figure14)
22
UHF Microphone System
Troubleshooting
G.Troubleshooting Problem
No operation indication
No RF signal
Possible cause
Transmitter’s batteries are exhaustedor DC in is not connected well.
Transmitter and receiver are not at the same channel Transmitter is out of
range
Transmitter is muted(“MUTE”)
RF signal available, no audio signal,”Mute” appears on the display panel
Receiver’s squelch threshold is adjusted too hight Transmitter doesn’t transmit a pilot tone
Audio signal has a high level of background noise Audio signal is distrorted
Transmitter sensitivity is adjusted too low
Receiver’s AF output level is adjusted too low Transmitter sensitivity is
adjusted too high
Receiver’s AF output level is adjusted too high Transmitter set at a low-power
The use of short distance,Signal instrbiity
Squelch is too high Receiver antenna set improper Surrounded by strong electromagnetic interference
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