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VOX (Voice Operated Exchange)
VOX, resolves the requirement to change the transmission mode manually each time
you want to send a message. The radio automatically switches to transmission mode
when VOX switch system senses that you start to speak to the microphone. Please
follow the instructions given below:
1. Push [MENU] button, rotate [CALL] button, switch to MENU [06] VOX.
2. Then, push [U/V] button to enter adjustment mode.
3. Adjust OFF/1/2/3/4/5/6/7/8/9 setting by rotating [CALL] button clockwise or counter
clockwise.
4. Push [U/V] button to save the setting.
5. Push [MENU] or [PTT] buttons to EXIT to normal
operation mode.
Warning:
Degrees 7-9: Most Sensitive VOX Level Setting under silent circumstances
Degrees 4-6: VOX Level Setting in Medium Sensitivity under normal circumstances
Degrees 1-3: Least Sensitive VOX Level Setting under very noisy circumstances
While VOX function is activated, VOX’ icon can be seen on the LCD.
18 English
ADVANCED OPERATION
HEIDER PRO5 PMR 446
20


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  • Hi, where can I get the (optional accessory) USB data cable from, and the associated programming software download? Submitted on 4-10-2018 at 10:38

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  • One of my hand sets cannot adjust volume and does not show the vol level on screen. Can you advise on this Submitted on 13-6-2017 at 12:56

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  • How can i lower the speaker volume because the manual only adressed how to increase the volume but not how to decrease it. Submitted on 11-3-2017 at 09:41

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