Motorola HT1250LS+ manual Introduction, Trunked Radio Systems, PassPort Trunked Systems, English

INTRODUCTION

Welcome to Motorola’s HT Series family of radio users. This user guide supports HT1250•LS+™ radios. These radios combine the very latest in two-way technology while delivering outstanding functionality at the touch of a button.

HT1250•LS+ portable radios operate on UHF/ VHF PassPort, LTR Trunked, and Conventional radio systems.

Contact your Motorola dealer for a list of features available with your radio.

TRUNKED RADIO SYSTEMS

Trunked systems allow a large number of users to share a relatively small number of frequencies or repeaters without interfering with each other. The airtime of all the repeaters in a Trunked system is pooled, which maximizes the amount of airtime available to any one radio and minimizes channel congestion.

PassPort® Trunked Systems

PassPort is an enhanced trunking protocol developed by Trident Micro Systems that

supports wide-area dispatch networking. A network is formed by linking several Trunked sites together to form a single system. This offers users an extended communication coverage area. In addition, users with PassPort-enabled radios can seamlessly roam among all sites within the network. Seamless roaming means that you do not have to manually change the zones on your radio when roaming from site to site.

LTR® Trunked Systems

LTR is a transmission-based trunking protocol developed by the E. F. Johnson Company for primarily single-site trunking applications. In transmission trunking, a repeater is used only for the duration of a single transmission. Once a transmission is completed, that repeater becomes available to other users. This means that a conversation comprised of many transmissions may occur over several different channels within the LTR system. This method of trunking provides system efficiency by making repeaters available to all users after every transmission.

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INTRODUCTION

English