Radio Shack 20-106 Manuel D’Utilisation

Page de 28
10
11
Monitoring Network
ed Motorola and P25 
Systems
Some of the systems that ar
e pr
epr
ogrammed in 
your scanner ar
e networked, multi-site Motor
ola 
systems, such as Smartzone, OmniLink, and 
networked P25 systems. These systems ar
designed to cover very lar
ge ar
eas by using 
multiple networked transmitter sites, each with its 
own set of fr
equencies.
Your Advanced Digital Scanner includes a Multi-
site featur
e that can enhance the operation of 
the scanner when monitoring Multi-site systems. 
Multi-site can be enabled by editing the trunking 
system (TSYS) parameters for the system. Multi-
site can be set to Of
f, Stat (Stationary), or Roam. 
By default, Multi-site is set to Of
f. 
To
 activate Multi-site mode on a pr
epr
ogrammed
Motor
ola or P25 networked system:
1.
Pr
ess 
PGM (PROG),
 then navigate to a 
talkgr
oup on the networked multi-site system 
using the 
STWX
 keys.
2.
Pr
ess the 
EDIT
 softkey
, then pr
ess the 
CURR
softkey
.
3.
Scr
oll down to the TSYS item and pr
ess the 
SEL
 key to edit the TSYS parameters.
4.
Scr
oll to Multi-site. Use the 
WX
 keys to 
select
Off, Stat,
 or 
Roam
. When set to 
Off
,
the scanner will find the first usable contr
ol 
channel in the contr
ol channel list and use 
it until it is no longer usable. When set to 
Stat
, the scanner will track the system using 
any contr
ol channel in the list that is usable. 
When set to 
Roam
, the scanner will attempt 
Using the Preprog
rammed Data
to locate and use the best possible contr
ol 
channel and ignor
e others, until the contr
ol 
channel is no longer usable, then it will locate 
a new “best contr
ol channel” to use. Roam 
decisions ar
e made using the Thr
eshold 
Hi and Thr
eshold Lo settings. For mor
information on Multi-site, please see 
“Multi-
Site Mode On Network
ed Systems”
 in your User’
Guide.
5.
Pr
ess the 
SAVE
 softkey to save your changes 
to the TSYS parameters, then pr
ess the 
SAVE
softkey again to use the scanner
.
6.
You should experiment with dif
fer
ent Multi-
site modes and thr
eshold settings to find a 
combination that works best for your location. 
Keep in mind that the thr
eshold settings 
ar
e only available when Multi-site 
Roam
 is 
selected.
7.
Multi-site functionality is not available in 
EDACS or L
TR trunking.
Monitoring Network
ed ED
A
CS Systems
Some of the systems that ar
e pr
epr
ogrammed in 
your scanner ar
e networked, multi-site EDACS 
networks. Like Motor
ola and P25 networked 
systems, these EDACS systems ar
e designed 
to cover very lar
ge ar
eas by using multiple 
networked transmitter sites, each with its own set 
of fr
equencies.
EDACS trunking is quite dif
fer
ent fr
om Motor
ola 
and P25 trunking. W
ith Motor
ola and P25 
trunking, the subscriber radios on the system 
(and your scanner) get all of the system channel 
fr
equency information fr
om the contr
ol channel, 
which simplifies wide-ar
ea networked system 
scanning. In EDACS, it is necessary to pr
ogram 
Using the Preprog
rammed Data