Motorola HT1250LS+ 用户手册

PassPort

 is an enhanced, wide-area trunking 

protocol developed by Trident Micro Systems. 
Up to 128 Trunked sites can be linked together 
to form one PassPort system, which means 
that your communications can extend far 
beyond the reach of a single trunked site. 

PassPort Trunking systems offer you the ability 
to seamlessly roam among all sites in a 
network. Seamless Roaming means that you 
do not have to manually change the zones on 
your radio when roaming from site to site. As 
you roam throughout a PassPort System’s 
coverage area, your HT1250•LS+ radio 
regularly monitors the RSSI (Received Signal 
Strength Indication) level of the site on which 
you are currently registered. In addition, if the 
signal strength falls below the acceptable 
threshold preprogrammed by your dealer, your 
radio starts monitoring the RSSI level of 
adjacent sites within the network. This allows 
the HT1250•LS+ radio to quickly roam to the 
site with the strongest signal, which provides 

you with optimal audio quality throughout your 
communications. 

Your HT1250•LS+ radio needs to register on 
the PassPort system before communication 
with your talkgroup can begin. Registration 
automatically takes place upon radio power up 
or after selecting the desired PassPort zone on 
the selector knob unless your radio is Site 
Restricted from that site or Group Restricted 
from that talkgroup. What you see: 

Upon radio Power up, 
you see:
(if you select a 
PassPort zone after 
your radio has 
powered up, see step 
2).

The display shows 
the selected 
PassPort Zone Alias 
(if preprogrammed).

PassPort

ZONE ALIAS