Tyco Electronics MM23016 7.15 CHANGING THE ACTIVE PROFILE , 7.16 CHECKING OR CHANGING THE SELECTED TALK GROUP , 7.17 ADJUSTING DISPLAY AND BUTTON BACKLIGHT BRIGHTNESS , 7.18 STEALTH MODE

Using the keypad on a System Model, the radio can transmit DTMF tones corresponding to

numbers/characters 0 — 9, * and # on the keypad. To overdial numbers/characters, transmit by pressing

and holding the PTT button and then, press the corresponding keys (one at a time) on the keypad.

7.15 CHANGING THE ACTIVE PROFILE

The radio can store up to sixteen (16) standard profiles, one of which is the currently active profile. To

change the currently active profile:

1. Scroll through the menu with until “ProfileMenu” is displayed.

2. Use to scroll through the list of available profiles.

3. Profile becomes active when selected for longer than two (2) seconds, when the MENU is pressed, or

when the menu is changed using .

Each profile stored in the radio can have up to sixteen (16) talk groups. One talk group within the

currently active profile is set as the “selected talk group.” For the radio user, the selected talk group is

typically the focus of most voice transmissions and re ceptions. There are two wa ys to change the selected

talk group:

First Method:

1. Use to scroll through the menu until “TalkGrpMenu” appears on the bottom line of the

display. The currently selected talk group appears in the top line of the display.

2. Use to scroll through the available list of talk groups in the active profile. This list is

determined by the OpenSky network administrator.

Second Method:

From the dwell display, use the talk group selection knob or to scroll through the available list of

talk groups in the active profile.

The radio uses a light sensor on the front panel to automatically adjust display brightness and button

backlight brightness to ambient light conditions. The display and backlights automatically brighten at

higher external light levels and automatically dim at lower external light levels. However, the “Bright

Menu” gives the user some manual brightness control as follows:

1. Using , scroll through the menu until “Bright Menu” appears.

2. Use to increase or decrease brightness. Display and button backlight brightness will

immediately dim or brighten.

For some users, it is important to be able to turn off the radio’s display lights, button backlighting, volume

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.