Motorola MOTOTRBO SYSTEM PLANNER Specifications Page 61

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52 System Feature Overview
November, 2008
The roam lists are configured as shown below:
As can be seen there are 4 roam lists required for the 4 wide area channels. Each roam list
contains only one personality that references the desired logical channel at each site. Although not
necessary, personalities that correspond to a site can be placed together in their own zone (or
folder). This will help further remove the concept of site from the radio user and allow the site
roaming feature to choose the appropriate site. If they must manually choose a site, they can
change zones. Using the actual name of the site as the zone alias will help clarify this to the end
user, but it is not required. Since the same group is mapped to the same dial position in each zone,
the user will have the same group selected as they change through the sites (zones). In this
example the personalities are aliased with the group names, but other aliases that define Site,
Channel, or Group name can be used. If there are more than one group per wide area channel, a
roam list can be created for each group to utilize.
It is important to understand that when the radio determines a new home site to be one of the roam
list members, it will only utilize the logical channel attributes of the roam list member. The
remaining attributes will be used from the selected personality.
The following logical channel attributes of the home site are utilized:
Transmit Frequency and Transmit Reference Frequency,
Receive Frequency and Receive Reference Frequency,
Color Code,
Time Slot,
Talkaround Setting,
GPS Revert Channel
Emergency System (Including Emergency Revert Channel)
Take specific note of the GPS Revert and Emergency Revert channels. Because physical
channels will be different per site, the revert channels must change when the radio roams to
another site. It is recommended that emergency settings (other than revert channel) should be the
same for all personalities within a roam list. Otherwise the radio may perform an emergency
differently as it moves from one site to another.
The remaining personality attributes (Transmit and Receive Group List, Channel Access, etc.) will
be used from the currently selected channel regardless of which site the radio is currently roamed
to. It is good practice to make these parameters identical for personalities within a roam list so that
Roam List
# - Alias
Personality (CPS Channel)
# - Alias
1 – WAS1 CH1
1 – SITE 1 TGA
5 – SITE 2 TGA
2 – WAS1 CH2
2 – SITE 1 TGB
6 – SITE 2 TGB
3 – WAS2 CH1
3 – SITE 1 TGC
7 – SITE 2 TGC
4 – WAS2 CH2
4 – SITE 1 TGD
8 – SITE 2 TGD
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