intrend ITWMIC-Rx2-1S User manual

Professional wireless
microphone system
Wireless User Guide
ITWMIC-Rx2-1S ITWMIC-BP-1 ITWMIC-HH-1

2
NOTE
Note........................................................................................3
Features...................................................................................4
Adjustment note.........................................................................4
Receiver wireless receiver function..................................................5
the name and functions of each part.............................................5
the receiver operating methods...................................................6
the panel operating instructions..................................................7
Handheld transmitter features..........................................................11
Body-pack transmitter features.......................................................12
How to use the system properly......................................................13
Management Software Of Wireless Microphone....................................15
Failures and solutions..................................................................18
Safety Guidelines.......................................................................18
Technical Specications...............................................................19

3
NOTE
•The host should be placed in the proper position to keep the reception in good
condition
•Please use MIC correctly , don’t throw, drop, take o it.
•The machine should avoid sunny and raining.
•Please save it carefully when don’t use it long time.
•Any problem, please contact distributor or our company, don’t open it.
•Please conrm the power supply is 110V and 220V before using.
• For adequate ventilation, the minimum clearance around the equipment is 15cm.
•Vents should not cover items such as newspapers, tablecloths and curtains etc.
•The machine can’t close to re, such as candle.
•Considerations for environmental impact of discarded batteries (Example:
• Don’t throw away the batteries when they are discarded. Please put in the
designated recycle box.
•The machine should not suer from water, please don’t put vase on the machine.
• « » terminal is charged warning, these cable should be setup and used by
professional worker or use lead or cord.
•The machine should work on tropical or temperate
•Batteries can’t under sunny, hot or re environment.
• If use power plug and appliance coupler as disconnect device, the disconnect
device operation should convenient.

4
FEATURES
ADJUSTING NOTICE
•Adopt UHF high band, less interference than the traditional VHF band, make the
transmission more reliable;
• DPLL digital multi-channel PLL frequency synthesizer technology, the 50MHz
frequency bandwidth to 250KHz channel spacing, providing up to 200 channel
choices, more convenient set of machines simultaneously use, easy to avoid all
kinds of interference;
• Advanced automatic frequency technology, even if the transmitter and receiver
frequency adjustment disorder, and you just press the button, the transmitter
will automatically lock the receiver to recover and adjust the same frequency, it
is easy to operate;
•Special high-low power switching function, let you use this microphone easily not
only in large location but also small rooms, this function longer the life of battery.
•Specic receiver set lock function to prevent mistake operation;
• Special receiver sensitivity adjustment function can be adjusted according to
sensitivity, in order to improve the ability of interference or increase capacity to
receive distance;
• High-quality LCD display, the working status of receiver and transmitter can be
monitor easily and clearly.
• Adjusting transmitter sensitivity is very important. High sensitivity lead to distortion,
low sensitivity will lower SNR. Handle transmitter sensitivity is on suitable level,
user don’t have to adjust it. Hanging type transmitter can adjust external voice
as the clip and head MIC.
• If the frequency setup is correct, can use 14 transmitters on the same room and same
frequency band. Incorrect frequency setup, lead to intermodulation interference.
• If many sets machine work on the same room, please avoid receiver machine
overlapping.
•If work on KTV, school, please small power transmitter.

5
1. Power on: hoist the power supply; power switch is turned on, LCD on.
2. Button to monitor channel A or channel B via headphones
3. Volume knob for headphones.
4. Headphone connection, 1/4» stereo jack (6.35 mm)
5. Volume control knob.
6. RF signal indicator: Display the received RF signal strength.
7. AF display indicator: Display the received audio signal strength.
8. Infrared window: by using the «SET» button, send the channel parameters to the
transmitter.
9. Red / green dual color liquid crystal display (LCD): displays the status of frequency,
frequency / channel, squelch, received signal level.
10. Function button: Press «SET» button to select the main menu in cycle, stay 2-3
seconds, the menu is selected, and displays the current setting status. Press « »
« » button to the currently selected Change the state of the menu or select,
then press «SET» button settings to take eect.
RECEIVER
Names and functions
1
Front panel of dual channel receiver
Rear panel of dual receiver
11. Antenna jack, BNC socket.
12. Audio mixed balanced output.
13. Audio outputs: using «XLR»-type socket, two-channel signal output separately.
14. Audio unbalanced output.
15.
Outlet: 12V DC power outlet of the power input socket, positive voltage is connected
to the center of the socket.
PHONE
VOL A VOL B
1 3 6 7
8 8
9 910
11 11 11 1112 13 1314 15
105 6 7
5
42

6
RECEIVER LCD MANUAL
1.
Antenna CH selector display: dynamic display the currently selected receive channel.
2. Mute display : « » symbol, mean no signal.
3. System control symbol, lock symbol « », mean locking receiver work status(CH,
main display etc), unlock symbol « » displaying, unlock receiver work status.
4. Transmitter batteries charge display
5. Receiver sensitivity setup
6. Channel display: display work CH.
7. 6 character display, display work status, frequency, level, menu etc.
1. Before turning on the receiver, do not turn on the transmitter, rst turn receiver
volume to the minimum, and then press the power button on the receiver to open
it. When the power turns on, the LCD will be lighted, all the characters shown,
and then LCD shows the current corresponding channel, frequency, automatic
frequency status of the receiver.
2.
When the transmitter is not turned on, the receiver LCD blacklight is red, you
should observe the RF and AF indicator rst. If there has a situation that RF or AF
indicator lighted, that means there has too much interference in this channel, you
should try to select another channel instead.
3.
When turn on the power of the transmitter, the corresponding channel RF level
meter lighted, the corresponding channel LCD backlight change to green, adjust
the receiver volume to the appropriate position, then speak to the transmitter, the
receiver AF level will be lighted. If there is no sound output or level meter is o,
that means the system is not working properly, we have to inspection the machine.
4. Press the power button, the receive power o.
Operation
2
1 2 3 4 5
6 7

7
1. Button functions and operations
Frequency pair operation
Channel or frequency display
and adjusting
The panel operating instructions
3
Press the middle button “SET” to conrm selection menu and set
Press “ “ “ “ button to adjust or select, then press “SET” button settings can
take eect.
Keep pressing “ “ “ “ button to quickly select the frequency, channel.
This receiver have 2 channel, operation key correspond this channel LCD content.
Channel A as example, other channels the same operation as A.
2. LCD panel operation manual
• Frequency pair operation: transmitter IR
frequency pair window should point to
receiver IR frequency pair window, press
«SET» key, after 2-3 seconds, IR data send
to transmitter. After correct frequency
pair, can work normally. As picture
on the left
•
This menu display currently receiver work
channel, Press « » key or « » key can
change work channel and frequency, after
changing, please press «SET» to conrm it.
Otherwise, it is invalid.
•
If select new channel, but no conrmation,
CH symbol will twinkle after 2-3 seconds.
After «SET» conrmation, twinkle stop,
that operate frequency pair.

8
Sensitivity display and adjusting
System lock control
Press “SET” key, LCD display as the left
picture, « » twinkling, meanselecting
status.
This menu display currently receiver work
sensitivity, press « » key or « » key
can change sensitivity, total 9 levels, high
to low “00,05,10,15,20,25,30,35,40”. After
changing, please press “SET” to conrm
it. Other wise, it is invalid. If select new
sensitivity, but no conrmation, sensitivity
symbol will twinkle after 2-3 seconds. After
“SET” conrmation, twinkle stop.
•
Repeat «SET» key, display «LOCOFF» or
«LOC ON» picture (decide to currently
status)
•
When press « » key or « » key to
change original status, please press «SET»
to conrm it. Other wise, it is invalid.
When system is locked, LCD display « »
symbol, when system is unlocked, LCD
display « » symbol
•
If change original status, but no
conrmation, LCD will twinkle after 2-3
seconds. After «SET» conrmation, twinkle
stop.
•
This menu function, lock or unlock receiver
work status (channel, frequency, main
display content etc), if lock, display «LOC
ON», if unlock, display «LOCOFF», than
change all menu function.

9
Transmitter power setup
•Pepeat «SET» key, that LCD display
«rF HI» or «rF Lo»
«rF HI»: high transmit power
«rF Lo»: low transmit power
(Notice: What is the status display on
LCD based on the status set before)
•
Press « » key or « » key to change
original status, then conrm it by «SET»
key.
•
After setup new status, please press «SET»
to conrm it. Transmitter IR frequency
pair window should point to receiver IR
frequency pair window, IR data send to
transmitter. As the left picture
•
If change original status, but no
conrmation, LCD will twinkle after 2-3
seconds. After «SET» conrmation, twinkle
stop.

10
ID number of the receiver setup
Auto scanning
• Press «SET» key, LCD display as the left
picture,
•
This menu will use with the wireless
microphone software platform that will
display the ID number of the current
receiver,and different receiver with
dierent ID number.Press the key « »
or « » will change the number
•
When the work frequency and channel is
normal ,press the «Set» 2-3 seconds, make
the LCD display «SCAN», the receiver will
auto scan frequency, the frequency and
channel will auto step-up, after selected
the clean channel and frequency, the
channel number will ash to remind to
conrm, press «SET» button to conrm,
then can reset the frequency pair again.
•For monitoring purposes you can listen to channel A or B with a headphone.
•Connect a headphone to the headphone connection of the receiver.
• Press the appropriate button to monitor channel A or B. Adjust the
volume twist of the monitor, you can adjust the suitable volume.
3. Monitoring
VOL A VOL B

11
LCD display on hand-held transmitter
TRANSMITTER. HAND-HELD TRANSMITTER
1. Grill and cartridge module: grill is used
to protect the cartridge, and eliminate
the noise of «POP», and protect the
microphone rolling on the table.
2.
Microphone tube: at the top to assemble
the grill and cartridge, battery and PCB
assemble in the tube, there is a antenna
at the bottom of the tube.
3.
OLED display: display the channel and
battery capacity.
4. Bottom tube of Microphone
5.
Power / mute switch(touch switcher):
pressing switch long time is turn on,
pressing switch lightly is mute, pressing
switch long time again is turn o.
6.
IR window: send the channel data to the
transmitter with the receiver button.
7.
Battery compartment: install two AA
batteries.
1. High and low power transmit display
2. Mute display
3. Battery capacity display
4. Channel display: display work CH.
5. 6 digital character display
A-51:650-662MHz
HAND-HELD
TRANSMITTER
H
613.750 MH z
1 2 3
4
4
1
2
3
4
5
4
4

12
BODY-PACK TRANSMITTER
Body-pack transmitter LCD instruction
1. High and low power transmit display
2. Mute display
3. Battery capacity display
4. Channel display: display work CH.
5. 6 digital character display
H
613.750 MH z
1 2 3
4
4
1. Transmitting antenna:
built-in spiral antenna
2. Power Switch
3. Belt clip
4. Microphone input jack
5. Infrared receiver window
6.
OLED display: Displays the
current working channel
and battery
7.
Output power function
key, clicking key can select
high power « « or « « low
power.
8.
Adjust output sensitivity
function key, total 4
levels, low to high,
«-15dB», «-10dB»,»-5dB»
and «0dB»
9.
Battery compartment: 2
AA batteries installed
Clip microphone (accessory)
Headset microphone (accessory)
1
9 9
3
6
7
8
5
2 3 4

13
HOW TO USE THE SYSTEM PROPERLY
1. After turn on the power, OLED lighted, display the working channel and battery capacity.
2. If you want to change the working channel, you should change the receiver channel rst,
then put transmitter according to the receiver IR window, and press «SET» to conrm. The
new channel data will send to transmitter, adjust up and down button to select channel
and frequency.
1.
The body-pack microphone use built-in spiral antenna, but antenna should not touch the
body, and do not trap with the microphone wire, otherwise will reduce the eect.
2. Make the moderate sensitivity according to the sound and microphone.
3. When you use the clip microphone, you should put the clip in the middle and x the wire,
to avoid any noise cause from turning head.
4.
Head set microphone’s cartridge position near the mouth, you can increase or decrease
high and low tone by adjusting the distance of cartridge and mouth.
5. When you use clip microphone for enhance the sound, should use direction cartridge, the
selection and position of the speaker is very importance, in some occasion that easy to
make voice feedback should use acoustic feedback suppressor.
1.
You should hold the middle of the microphone, if hold too close to the grill, that would
aect the microphone’s pickup, if hold too close to the antenna at the bottom, which would
aect the transmission, less the distance.
2. You can increase or decrease high and low tone by adjust the distance between
microphone and mouth.
Handheld or body-pack transmitter instruction operation
How to use the body-pack microphone correctly
How to use hand held microphone correctly
1
2

14
How to use receiver
How to use several sets in a location
3
4
1. When the receiver uses Omni directional antenna, the distance between antenna and wall
should over 0.5m.
2.
Receive range is concerning with a lot of factors, it would be better if there is no large
metal in the transmission way.
3.
If the receiving conditions are not ideal, you can use an extension cord, an external high
gain antenna, or antenna amplier to achieve a better result.
4.
When the receiver is in a metal cabinet, the antenna should place in the front panel to
get a better result.
5.
When the receiver is close to the edge, use directional antenna to point to using range,
you can get better reception.
1. First, use dierent frequency, in 25MHz bandwidth, normally can use 8 transmitters at the
same time and 16 transmitters in 50MHz bandwidth. If you want to use more, should use
other frequency models.
2. When several transmitters use at the same time, the distance should be over
20 cm of each transmitter. And under the condition of transmission, you should
use the minimum power, to avoid interference.
3.
When several receiver uses at the same time, we suggest you install a high gain
antenna, antenna amplier and receiver splitter.
4.
If the transmitters are set to the low power, for example in KTV rooms and
classrooms, are not limited to the quantities.
5.
Please do not use Isometric channel of two channels of the Wireless conference
transmitter. For example, CH1 set at channel 20, other channel should avoid setting
at channel 40, 80,100. And if you use one channel for 2 transmitter, should pay
attention to this too.

15
1. Auto scan: frequency drawing tools The software can scan the frequency,and show the
receiving situation of the wireless microphone through the chart.It will check the receiving
problem and stop to eect the voice quality.
Functional Descriptions
Main Features
1
2
The software use with ITWMIC-Rx2-1S wireless microphone system,solve the interference
problem when more set of wireless microphone be used together.Specially,use for the
professional performance and concert and others live event.
MANAGEMENT SOFTWARE OF WIRELESS MICROPHONE

16
2. Control:Control the wireless microphone system through networking. The software
can control the function of the wireless microphone system, for example:auto
scan,infrared frequency pair,AF/RF Received Signal Strength,Battery strength
and so on.
1. Equipment preparation
Software operating instruction
2
A. Switch(self-provide)
B. Wireless microphone system with network port
C. PC with the software
A. control menu:
Add device / Connect / Disconnect / RF historical / Scan / Single system settings / More
system settings / About
В. Menu Introduction
Add device: a. setting the ID number of the receiver which have connected with the software.
b. could add more receiver at the same time.
Connect: Connect and operate the wireless microphone systemin the software.
Disconnect: Disonnect and operate the wireless microphone system in the software.
RF historical: That could show the strength condition of the receiving signal.
Scan£: Scan the frequency of the wireless microphone system and setting.
Single system settings£: Setting the frequency for the single system after the scanning.
More system settings: Setting the frequency for more system
after the scanning.
2. Software interface description

17
The steps of the software
4
(a).double click the name of the equipment which have connected,and will see the window of
frequency pair.
(b).click the key of “frequency pair”,than the receiver and transmitter will be pair
(c).The window of frequency pair show the strength of AF and RF,and also show the frequency
and channel.
Frequency pair:
1. Connect the device Connect the wireless receiver,switch,computer,and make sure that
all teh device are in the open status.
2. The setting of the computer IP address.
Open the «my connecting»on computer,and setting the IP addressed be the xed
address,for example:setting the IP:192.168.0.100,subnet mask: 255.255.255.0
3. The ID setting of the device
Click the «Add device» tool,and write the device information on the interface.Include:IP
address(the IP No could not be the same),ID No of the device,channels,names.
Notes:The ID No is the IP address of the receiver(could be inquire on the display menu of
the receiver),the name was the system device.
4. Connect: Connect the device which have setting ID No and operate in the
software.
5. Single system: Click the «Single system setting»
More system: Click the «More system setting»
Interface---choose the device No which be connected---»Open»--
Show the «nish scaning»after the auto scan---click «conrm»---system
automatic calculation which is the usable frequency---click the «setting
frequency» ---choose the frequcncy---click the frequency and click «setting»---
nish the frequency setting.
6. Frequency pair
Choose the name of the device---double click the name of the device which
have be connected---popup window---use the transmitter face the IR location
of the receiver---click «Frequency pair»---nish the operate.
7. View the RF historical data
That could be know the signal of the using system,and could be operation
adjustment.

18
Failures and solutions
Safety Guidance
Use and preservation:
Cleaning:
Maintenance:
Warranty:
SYMPTOM CAUSE
No indicate of transmitter
and receiver Transmitter of out battery, receiver unplugged
No RF signal of receiver With dierent frequency or out of receive range
Have RF signal but no AF
signal
Microphone unplugged or the squelch is too much of
receiver
RF signal has too much
noise
Transmitter frequency deviation is too small, the receiver
output level is low, there may be interference signal
AF signal distortion Transmitter frequency deviation is too large, the receiver
output level is too high
Use a shorter distance,
the signal instability
Transmitter set at small power, squelch of receiver is too
much, receiver antenna is setting incorrectly, surrounded
by strong electromagnetic interference
If the fault is not included in the table, do not remove to repair, please contact the manufacturer
or local dealer.
Do not put the machine in high humidity, strong electromagnetic eld, strong direct sunlight,
and high temperature of such circumstances, if you do not want to use the machine for a long
time, should unplug the power receiver, and remove the battery from transmitter
Unplug the power before cleaning, and use wet cloth only. Not use any Cleaning agents or soluble
liquid; otherwise it will damage the surface.
If a malfunction or performance degradation, do not disassemble the cover to repair by yourself,
to avoid the risk of electric shock or serious damage to the machine, and lose warranty rights.
Please contact the local Dealer or factory, we will serve you best.
The machine does not have any parts to modify, please do not open the machine by yourself.
Or you will lose the warranty rights.

19
SYSTEM PARAMETER:
RECEIVER PARAMETER:
•Frequency range :470-510MHz
•Modulation: wideband FM
•Adjustable Range: 50MHz
•Channel number: 200
•Channel Spacing: 250KHz
•Frequency stability: ±0.005% or less
•Dynamic Range: 100dB
•Maximum frequency deviation: 60KHz
•Frequency response: 70Hz-18KHz
•Overall signal to noise ratio: 50dB
•THD: 5%
•Operating temperature: -10 C°- +55 C°
•Power consumption: 5W
•Receiver mode: Double tune auto selecting signal
(True diversity receiver)
•Spurious Rejection: 80dB
•Mirror suppression: 80dB
•IF Frequency: 1st IF: 110MHz, 10.7MHz IF II
•Wireless Interface: BNC/50
•Sensitivity: 6 dB V (S / N>80dB)
•T.H.D:<0.5% @ 1KHz
•Noise Ratio:105dB
•Intermediate Frequency:110MHz,10.7MHz
•Audio Output : XLR-3M 1V/600Ù; 6.3MMTRS 0.5/5KÙ
•Supply voltage: DC11-16V
•Working Current:160mA
•Chassis Size:420(L) x 44(H) x 185(W)mm

20
(A-50)/(B-50)transmitter parameter:
YT-2 Headset microphone parameter:
YL-2 Lavalier microphone parameter:
•Tube material:Zinc alloy
•Oscillation mode:(PLL)Phase Locked Loop
•Frequency range 470-510MHz
•Bandwidth:50MHz
•Output power: High 30mW / Low 3mW
•Harmonic Emission: -55dBC
•Frequebcy deviation(max):+/-68KHz
•Channel number: 200
•Directional:Dynamic cardioid directe
•Frequency response:50~18000MHz
•Sensitivity:-80dB
•Output Impedance:600�
•Âattery:two AA batteries
•Use of time: when high power is greater than 8 hours, more
than 12 hours at low power
•Display screen:OLED show the Battery,Channel,Voltage
•Transmitting distance:80-120 Metres
•Directional:Condenser omnidirectional
•Frequency response:20~20KHz
•Sensitivity:-35dB+/-3dB
•Output Impedance:2K••30%
•Maximum sound pressure level:140dB/135dB
•Directional:Condenser supercardioid
•Noise Ratio:58dB
•Sensitivity:-46dB+/-2dB
•Output Impedance:680Ù