AirTech AQ-40B User Manual Download Page 5

Description 

 

 
 

 

 

 

Operation 

1.  Power on / off  

On : Holding down on/off switch for 2 seconds, LED lamp 
would be flashed red and green alternately. When LCD 
window is lighted, it is Okay. 
Off  : Holding down on/off switch for 2 seconds, LED Lamp 
will be flashed red and green alternately. When LCD window 
light goes off, it is Okay.  
 

2.  Audio Volume Control 

Audio volume is increasedwhen rotating volume switch 
clockwise. 
Audio volume is decreased when rotating the volume 
switch counter-clock.

  

3. Channel 

Selection: 

Possible to channel selection when rotating volume knob 
clockwise or counter clock wise while holding down 
Function switch. 
 

4. Transmit: 

Hold down the PTT Button

 ⓗ 

and talk into  the MIC at  

1-2 in distance. The LED lights red on transmitting. 
Release the PTT button

 ⓗ 

to receive. 

5. Receive: 

Choose the desired channel by rotate right/left switch

 

The LED lights green on receiving. In case the signal 
doesn’t match the sub–tone the green LED will blink. 

6. Monitor: 

Press to monitor. Pressing the monitor button for more 
than 2 seconds will cause continuous monitor condition. 
To release the monitor mode, press and release the 
monitor button quickly. 

7.  Transmit operation during scan  

. If the radio is programmed in PTT channel at 

scanning is home channel: TX will occur on the 
channel the scan started. 

. If the radio is programmed in PTT channel at 

scanning is last busy channel: TX will occur on the last 
busy channel  

8. TX ANI 

If the radio was initially programmed for this feature 
pressing the PTT will cause a DTMF code to be send 
that can identify the sending radio. 

9.  2/5 Tone Decode (Selcall) 

During initial radio programming by the technician this radio 

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