Tyco Electronics MM23016 ユーザーズマニュアル

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When stealth mode is on, the radio continues to scan the programmed list of talk groups and the user can 
key-up on the selected talk group. 

1.  Using 

, scroll through the menu until “StealthMenu” appears. 

2.  To immediately turn Stealth Mode on, press (

+) or (-) with 

. 

3.  To turn Stealth Mode off, press any button on the radio’s front panel. 

Pressing any radio button other than the mic’s PTT button or the emergency button on front panel will 
immediately turn Stealth Mode off. For example, pressing the MENU button on the front panel will turn 
Stealth Mode off. 

 

The radio sounds confirming tones called “side tones” when its buttons are pressed. Most users find this 
audible confirmation helpful when navigating the menus. Side tone audio level can be adjusted or turned 
completely off using the “Side Menu.” 

For covert operations, it may be necessary to turn off side tones. For safety’s sake, turning off the radio 
during covert operations is not recommended. 

To temporarily disable the side tones that could expose the user’s presence and position, use the menu 
buttons to access the “Side Menu” and select “Off” from the menu choices. 

If the radio is operating properly but side tones are not heard when the menu buttons are pressed, the side 
tones are probably turned off. To turn them back on, access the “Side Tone” menu and select a setting 
other than “off.” 

Use the following procedure set side tone level: 

1.  Use 

 to cycle through the menu until the “Side Menu” appears in the bottom line of the 

display. 

2.  Use 

 to change to the desired level (Off, Low, Medium, and High). To turn side tones 

completely off, use the “Off” setting. 

1.  Use 

 to cycle through the menu until the “Mode Menu” appears in the bottom line of the 

display. 

2.  Use 

 to choose an available mode. Press MENU and confirm (Y/N) with 

 and press 

MENU again.