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In addition to calls on channels in the scan list, 
pages, private/unit calls, and telephone calls are 
received while scanning. Private and telephone calls 
are not interrupted by priority messages. 

6.12.2  PRIORITY TALK GROUP SAMPLING

One talk group in the scan list can be designated a 

priority talk group by programming or it can be the 
selected talk group. When scanning, messages on a 
non-priority talk group are interrupted by messages on 
the priority talk group. Priority scanning must also be 
supported at the system level for it to occur as 
programmed in the radio. 

6.12.3  SCAN LIST EDITING AND SELECTION

SMARTNET/SmartZone and P25 Trunked scan 

lists are user programmable if the SCN ED option 
switch is programmed. The procedure is described in 
Section 4.12.1. 

With SMARTNET/SmartZone and P25 trunked 

operation, each channel (talk group) can be 
programmed to select one of the programmed scan 
lists or so scanning is disabled (No List). In addition, 
each channel can be programmed so that scanning is 
automatically enabled (Auto Scan) when it is selected. 

If the SN LIST option switch is programmed, the 

list that is selected by all talk and announcement 
groups in the current system can be temporarily 
changed by the user as follows. Also selectable if 
desired is “No List” (scanning disabled) or 
“Programmed” (default list). The programmed default 
list is automatically reselected at power up. 

Proceed as follows to temporarily change the 

currently selected scan list:

1. With scanning disabled (the rotating 

 icon is not 

indicated in the right status display), press the SN 
LIST option switch.

2. The currently selected list is displayed as “List x”, 

with “x” the currently selected list. To exit without 
changing the selected list, simply press the SN LIST 
option switch again.

3. To select another list, “Programmed”, or “No List”, 

rotate the Select switch. When the desired list is 
displayed, select it and exit this mode by pressing 
the Scan List option switch again.

The dynamic regrouping feature allows a 

dispatcher to change the current talk group or switch 
mobiles to a predefined regrouping channel to receive 
an important message. When the console issues a 
regroup order, the radio switches to the prepro-
grammed regroup talk group. If the lock mode was not 
specified, the selected talk group can be manually 
changed and the previous talk group is reselected if 
power is cycled. If a locked regroup command is 
received, the displayed talk group cannot be changed 
manually or by cycling power. It can be changed only 
after a clear order is received from the console. 

Dynamic regrouping operates as follows:

1. When this command is received, alternating tones 

sound and the radio automatically changes to the 
regrouping channel and “DYN REGRP” is 
displayed. 

2. Manually select the channel corresponding to that 

tag. If this is not done, transmission still occurs on 
the new channel, but the alternating tones sound 
each time the PTT switch is pressed.

3. Talk and listen as usual. The dispatcher cancels 

dynamic regrouping which is indicated by a short 
tone. If a standard channel is not selected after this 
occurs, transmission is not allowed if the talk group 
is assigned as a dynamic regrouping talk group only. 
If it is assigned as a normal talk group, normal trans-
missions are allowed. 

6.14.1  INTRODUCTION

As described in Section 3.7.3, the SmartZone

®

 

mode provides wide area coverage by allowing 
roaming between SMARTNET and conventional sites. 
The P25 Trunked mode can provide access to a single