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WISYCOM s.r.l.   -   Via Spin, 156  -  I-36060 Romano d’Ezzelino (VI)  -  Italy   - MTH300-eng-u03.doc 

Tel. (Ph.).  +39 0424 382605 -  Fax  +39 0424 382733 -  http:// www.wisycom.com  -   e-mail: sales@wisycom.com 

 

MTH300 QUICK USER GUIDE 

MTH300 is a professional radio microphone especially design for broadcast/high quality 

applications.  

1. OPERATION 

MTH300 is composed by 3 detachable parts: 

1) 

MIC Head

 (available with cardioid/hypercardiod polar pattern). 

2) 

MIC Body

 (the below part can be open to access “Display & Setup controls” area 

(fig.1) and on the back the “Batteries holder & Infrared” area (fig. 2). 

3) 

MIC Antenna

, made with fibreglass reinforced housing and with a “Wireless power 

switch” (fig. 3). “MIC Antenna”  is fastened to body with 2 anvils and a micro-
connector.  

 

 

1.1  LED INDICATION (POWER SWITCH) 

Led indication with bicolor led (red & green) on wireless power switch (fig. 3): 
- Wireless 

transmission 

status: green on/off) 

Battery status: green steady, slowly blinking (< 25%), quickly blinking (<12%) 

Modulation peek (if activated): red  

Ptt status: red if active 

1.2 BATTERIES 

MTH300 is working with 2 AA alkaline or NiMH batteries (select correct type on setup controls). 



Battery status can be checked on internal OLED display or looking to LED status on power 

switch (see 1.1) 

1.2.1 BATTERY 

SUBSTITUTION 

 



Open MIC body: unscrew counter-clockwise the below cover to access batteries holder; 



Take out below battery to release upper battery leverage; 



2

nd

 battery falls down and can be removed. 

 

Wireless power switch 

with programmable 

LED indication 

(green/red). 

Open MIC Body: 

Unscrew & slide down cover, to 

acces internal setup controls and 
batteries holder & infrared. 

Fig. 1 Display & Setup controls 

Fig. 2 Batteries holder and infrared

Fig. 3 Wireless 

power switch 

Exchange head

 unscrew it counter-clockwise  

2

3

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