User Instructions

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1. Introduction to the equipment
The TBR-280-4 is an ultra-thin digital single-frequency repeater , which is mainly
used for the formation of the on-site emergency mobile communication network, and
is applicable to the field of emergency events, sports events, large-scale conferences,
exhibitions and field operations. The safety of the wireless emergency communication
at the time of the convoy. The product has the advantages of small volume, light
weight, and convenient operation, namely, opening and closing, and is a good helper
for emergency communication guarantee.
1.1 Product characteristics
 Comply with PDT/DMR standard.
 With the embedded compact structure design, the equipment is small and light,
the thickness is only 40mm, and the weight is less than 2.5kg.
 The OLED Chinese display combination indicator light, the working status is clear.
 Audio interface, can be external audio input and output components.
 External-store high-performance lithium battery with working time of 17 hours (15%