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PRODUCT  DESCRIPTION

INTRODUCTION

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Wireless

Wireless

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Fi g .1  16 c hanne ls mo del
        Fr o nt pa nel

Fi g .2  64 c h ann els mod el
        Fr o nt pan el

1.

 

Introduction 

 

Thank you for purchasing our product. This in-ear monitor system operates in 

UHF band frequency with Phase Locked Loop (PLL) synthesizer controlled. The 
system with 16 or 64 selectable frequencies via PLL circuitry makes it easy to 
choose non-interfered channels. Please read this instruction manual carefully before 
operating the system. This manual covers the function and operation of the in-ear 
monitor system. 

 

2.

 

Safety 

 

 

Do not spill liquid on the appliance and do not drop it on a hard surface. 

 

Do not place the appliance near heat sources, such as radiators, amplifier, etc.. 
Do not expose it directly to sunlight, extremely dust, excessive moisture, or 
vibration.   

 

Unplug the power if the appliance has been not used for a long period. This 
will avoid the damage resulted by surge electricity.   

 

3.

 

Feature 

 

 

IEM-168 is a Low-Power FM broadcasting transmitter. At the same time, it can 
send out stereo music (work with CD player, MP3, etc.) and vocal 
broadcasting (works with wired or wireless microphone system).   

 

There are up to 16 or 64 selectable channels to set up a multi-channels 
broadcasting system and to avoid the frequency inference. Also, the LED 
displayer gives us a clear channel indication. And, user can select channels or 
groups easily by using rotary switch.   

 

The stereo audio signal (works with CD player, MP3, etc.) can be input easily 
through the RCA jack.   

 

The wired microphone can be connected to the 6.3

Φ

 jack or to the XLR 

connector.   

 

The Peak LED indicator can help avoiding the audio distortion. 

 

User can plug a headphone into the headphone jack on the front panel to 
monitor the sending out audio signal.   

 

IEM-168’s antenna is a high efficiency antenna. The service area can be 
improved when the antenna is placed at higher location. 

 

IEM-168 can combine with a RF power booster (AB-168, which is 1Watt max) 
to used for an over 1 km area service.   

 

4. Product Description 

 

1.

 

Power: push bottom to power on and push again to power off. 

2.

 

Group Rotary: adjust rotary to select frequency group. 

3.

 

Channel Rotary: adjust rotary to select frequency channel.   

4.

 

Channels LED display: indicate the current channel number. The number 
would show up when the power is on. 

5.

 

MIC Volume Control: adjust the volume of MIC input level. 

6.

 

Line Volume Control: adjust the volume of Line In input level. 

7.

 

Monitoring Headphone Volume Control: adjust the volume of monitoring 
headphone. 

8.

 

Peak Indicator: indicate the input audio signal is too high and may cause 
distortion.   

9.

 

Headphone Jack: 6.3

Φ

 headphone jack stereo type.   

10.

 

Antenna Socket: TNC socket for antenna. 

11.

 

MIC IN: 6.3

Φ

 / XLR jack for wired microphone. 

12.

 

Stereo/Mono Switch: switch the stereo or mono mode of audio signal.   

13.

 

Line IN: RCA jack for stereo audio input.   

14.

 

DC Power Jack: DC input connector for the supplied AC adapter.   

 

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