General Radio Operation
English
34
OR
Follow the procedure below.
1 < or > to Zone.
2 Press the Menu Select button directly below Zone.
3 U or D to the required zone.
OR
Use the keypad to enter the zone number.
4 If the zone number entered is unprogrammed, the display 
shows Invalid entry. Repeat Step 3.
OR
Press the Menu Select button directly below Sel to confirm 
the displayed zone. 
5 Press the PTT button to transmit on the displayed zone 
channel.
OR
Follow the procedure below.
1 < or > to ZnUp or ZnDn.
2 Press and hold the Menu Select button directly below ZnUp 
or ZnDn until the required zone appears.
Note: Positions of ZnUp and ZnDn on the display may differ 
each time you release the Menu Select button. Read 
carefully before you press.
Selecting a Radio Channel
A channel is a group of radio characteristics, such as transmit/
receive frequency pairs.
 
Use the following procedure to select a channel.
Note: Your radio must be preprogrammed to allow you to use 
this feature. If you select a channel that is not within the 
preprogrammed band, the radio indicates that it is on 
an unsupported frequency with both audio and visual 
warnings.
Consult a qualified radio technician for the right choice 
between the following methods.
APX_4000_M3.book  Page 34  Thursday, March 13, 2014  10:59 AM