Tyco Electronics M/A-COM MM23016 ユーザーズマニュアル

49 

33 

P25 Common Air Interface 

Optional 

34 

Direct Frequency Entry 

Optional 

38 Radio 

TextLink 

Optional 

In the following description of SYSTEM/GROUP/CHANNEL SELECTION, the term group is used 
for both group and channel. 

The M7200 SYSTEM/GROUP/CHANNEL knob and the 

 ramp control are programmable for 

maximum flexibility. If the SYSTEM/GROUP/CHANNEL knob is assigned to select groups, then the 

 ramp control is assigned to select systems. If the SYSTEM/GROUP/CHANNEL knob is assigned 

to select systems, then the 

 ramp control is assigned to select groups. System, group, and channel 

selection is the primary function for these controls. 

Either systems or groups can also be selected by entering the select mode and following the selection 
mode rules described earlier. The system select or group select modes are entered by pressing SYS or 
GRP, respectively, from the standard receive mode. Using the 

 ramp control after entering a 

particular selection mode in this manner is the secondary function of these keys. 

Several methods, some of which depend on programming, can be used to select a new system. These 
procedures are presumed to be starting from the normal receive display.  

METHOD 1:  If system selection is programmed to the SYSTEM/GROUP/CHANNEL knob, select a 

system by turning the SYSTEM/GROUP/CHANNEL knob to the desired system 
position. The display registers the new system name on line 1. If the wrap option is OFF 
and the knob is moved to a position greater than the number of programmed systems, the 
highest programmed system will remain selected.  

METHOD 2:  If system selection is programmed as the primary function of the 

 

ramp control, 

select a system by pressing up or down to scroll through the system list. The display 
registers the new system name on line 1.  

METHOD 3: Press 

SYS to enter the system select mode and follow the selection mode rules detailed 

earlier. Use the 

 

ramp control to scroll through the systems.  

Several methods, some of which depend on programming, can be used to select a new group or channel. 
These procedures assume starting from the normal receive display. 

METHOD 1: 

If group selection is programmed to the SYSTEM/GROUP/CHANNEL knob, select a 
group by turning the SYSTEM/GROUP/CHANNEL knob to the desired group. The 
display registers the new group name on line 2. If the wrap option is OFF and the knob 
is moved to a position greater than the number of programmed groups, the highest 
programmed group will remain selected.