LTR Standard and Passport
Encyclopedia
LTR Standard and Passport systems are hybrid Trunked Radio Systems that have some LTR Standard
talkgroups and some LTR Passport
talkgroups.
LTR Standard
LTR Standard systems have no dedicated control channel. All control data is sent as subaudible data along with voice transmissions. Systems can have any number of channels from 1 through a maximum of 20. Each channel in the system is assigned a unique number and these need not be sequentially...
talkgroups and some LTR Passport
LTR Passport
PassPort is a type of LTR Trunked radio system designed by Trident Micro Systems, which consists of multiple radio repeater sites linked together to form a wide-area radio dispatch network.-Purpose:...
talkgroups.