Tyco Electronics M/A-COM, M7300 Series 7.19 ADJUSTING SIDE TONE AUDIO LEVEL , 7.20 CHANGING OPERATING MODE , 7.21 RECEIVING AND TRANSMITTING VOICE CALLS

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.

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.

7.19 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.

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 to 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.

7.20 CHANGING OPERATING MODE

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.

7.21 RECEIVING AND TRANSMITTING VOICE CALLS

As soon as the radio completes the startup/log-on/provision/self-test sequence and registers on the

OpenSky network, voice calls from talk groups in the active profile will be audible.