Setup Information
102
Type Drop Down Menu
The Type drop down menu, shown in Figure 54 identifies the type of call for Sepura radio configuration.
Available options for this field are:
Trunked GC (Group Call) - A half duplex point-to-multi-point call where immediate
communication takes place between the calling and the called
users.
Trunked HDPC (Half Duplex Private Call) - A half duplex point-to-point call between caller and called units.
Each unit asks permission to transmit before each transaction.
Trunked UDSL (User Defined Scan List) - A scan of specific groups predefined in the radio and in the IP-223.
A UDSL is a collection of pre-defined talk group (or function tone)
settings. The UDSL string entered in the ISSI/GSSI Number field is
separated by the semicolon. It can accept up to 10 trunked groups.
Direct GC - Communication with other TETRA radios without the use of the
network. This is called DMO (Direct Mode Operation).
REFERENCE: For more information on TETRA operation and field programming, download the Sepura Application Note
at www.telex.com/radiodispatch.
ISSI/GSSI Number Field
The ISSI/GSSI Number field identifies the group number or unit number for the selected Sepura radio type.
FIGURE 54. Type Drop Down Menu—Tetra Mode
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