3 PREFACE
Volume up: adjusts speaker audio louder.
Volume down: adjusts speaker audio softer minimum setting.
Microphone: talk in a normal strength voice about 3cm from mic.
PTT: press to talk 3 quick beeps when pressed. When out of range the unit will sound a
slow beeping tone alert.
Emergency: A quick beep sounds when pressed and then triggers host radio’s
emergency function. Hold down button as per mobile radio’s emergency button
operating instructions or as advised by your supplier When out of range the unit will
sound a slow beeping tone alert when the button is pressed. Off/On: hold for about 5
Doc Number:
TNM-U-E-0180 ISSUE 1.1
Page
10
