Tyco Electronics M7300 Series User Manual

51 

METHOD 2: 

If group selection is programmed as the primary function of the 

 

ramp control, 

select a group by pressing up or down, to scroll through the group list. The display 
registers the new group name on line 2. 

METHOD 3: Press 

GRP to enter the group select mode and follow the selection mode rules detailed 

earlier. Use the 

 

ramp control to scroll through different groups.  

This feature, enabled through programming, allows the user to recall the last selected system/group after 
an emergency or home function or system/group key function. For example, if the Home button (pre-
programmed) is pressed, the radio will go to the designated Home system/group or channel. If the Home 
button is pressed again, the radio returns to the previous system/group or channel. At this time, the user 
can toggle between the Home system/group or channel and the previous system/group or channel. The 
operation is the same for the SG1-SG5 buttons. 

Each system (trunked or conventional) in the radio is programmed for no digital voice operation (analog 
only) or digital voice format ProVoice. ProVoice programmed systems have three (3) different voice 
modes: clear (analog), digital, and private. The voice modes are programmed on a per-group basis within 
each trunked system and on a per-channel basis within each conventional system. A radio must be 
equipped with the encrypt/decrypt option before it will operate in private mode. 

 

Current ProVoice Conventional operation is for talk-around mode only. 

 

CLEAR Yes 

No 

No 

DIGITAL Yes 

Yes 

No 

PRIVATE Yes 

No 

Yes 

In Clear Mode, the radio transmits and receives only clear (analog) voice signals. These analog signals are 
non-digitized and non-encrypted. Clear Mode transmissions can easily be monitored by unauthorized 
persons. Groups or channels programmed for clear operation cannot transmit or receive unencrypted 
digital or private messages.