User's Manual
Professional
FM Transceiver
13
Transmitting
Before transmitting, make sure that the channel you want to use is not in busy state through monitoring 
for a while by pressing the programmed Squelch off [PF1] / [PF2] key. Under these conditions, press 
the [PTT] key and speak into microphone. Please keep around 2.5-5cm distance between microphone 
and your lip. And please speak in normal tone to make the receiver obtain best tone quality.
ON/OFF VOX
When turn on this function, it's not necessary to press the [PTT], through the appropriate voice can 
star emission. 
In standby, put HS03  earphone into  MIC-SPK,  press and  hold  [PF1]  more than  3  seconds, the 
transceiver will send a prompt voice and turn on VOX function. Repeat the above operation or restart 
will be closed the VOX function. 
NOTE: It needs to program the VOX in valid status  firstly  if you want to turn on this function, 
otherwise, the above operation is invalid. 
Note:Press [PTT] Red LED lighting means transmitting. Release [PTT] to receive signal.
BASIC OPERATIONS










