Tyco Electronics MM23772 - Manual (Page 35)

MM23772, Rev. B
35
7.16 STEALTH MODE
For some users, it is important to be able to turn off the radio’s display lights and side tones, but not the
radio traffic. For example, in covert operations, lights and sounds could inadvertently expose an otherwise
unobservable radio user. For this purpose, the radio has a Stealth feature that disables the radio display
light, indicator light and audible side tones.
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.
7.16.1 Enabling Stealth Mode
Press the  or  buttons to scroll through menus until “StealthMenu” appears in the display. To
immediately activate Stealth Mode press the

or

button once. This activates Stealth Mode, exits the
Stealth Menu, and returns to the Dwell Display.
The display lights, indicator lights, and side tones are disabled. The stealth mode icon is displayed.
7.16.2 Disabling Stealth Mode
To re-enable all lighting, side tones and exit Stealth Mode, press any key other than PTT or Emergency.
This returns to the Dwell Display.
The display lights, indicator lights, and side tones are re-enabled. The stealth mode icon disappears.
With stealth mode on, 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

button on the front panel will turn stealth mode off.
7.17 ADJUSTING SIDE TONE AUDIO LEVEL
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.
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. Press the  or  buttons to cycle through the menu until “Side Menu” is displayed.
2. Press 
or
 to change to the desired level (Off, Low, Medium, and High). To turn side tones
completely off, use the “Off” setting.