Tyco Electronics M/A-COM Manuale Utente

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The M7300 series mobile radio also provides audible alert tones or “beeps” to indicate the various 
operating conditions. These alert tones can be enabled or disabled through programming. 

Call Originate 

A short mid-pitched tone. 

Sounds after keying the radio (Push-To-Talk button is 
pressed). Indicates the radio has been assigned a 
working channel. 

Carrier Control Timer 

Five short high-pitched 
warning tones followed by a 
long low-pitched tone. 

Sounds if the programmed time for continuous 
transmission is exceeded. The transmitter will shut down 
shortly after the alert, interrupting communications. 
Release and re-key the PTT button to maintain 
communications. This will reset the carrier control timer 
and turn the transmitter back on. 

Key Press Alert 

A short tone. 

Indicates a key has been pressed. A short low-pitched 
tone indicates no action was taken because the key is 
not active in the current mode. 

The menu function accesses features that are not available directly from the keypad. The order and 
specific number of menu items available is configurable through programming. Upon radio power up, the 
menu item at the beginning of the menu list will always be displayed first. Subsequent access to the menu 
function will return the last menu item that was shown in the display. To enter the menu mode, press 
MENU. The 

 ramp control, MENU, and CLR are used during the selection process. All of the 

selection mode rules previously detailed apply to the menu item selection process with the exception of 
direct access. The radio will continue to receive and transmit normally while in the menu function. 

A new item is displayed by using the 

 ramp control to scroll through the list in increasing and 

decreasing order. The displayed menu item is made active by pressing MENU. 

After entering the menu selection mode, the following generic display format will appear. 

M E N U 

Y Y Y Y Y Y Y Y

Line 1 indicates the radio is in the menu selection mode. Line 2 indicates the menu item (YYYYYYYY) 
that is to be viewed or changed (some menu items provide radio information and do not have changeable 
parameters). 

An example of the menu item selection process and menu item parameter change is detailed below for the 
contrast menu item. 

1.  Press MENU to enter the menu mode. 

2.  Press the 

 ramp control until the display shows: 

M E N U 

CONTRAST

 

3.  Press MENU. The contrast menu item is activated and the display will be similar to the following: