PRR is a short range radio operating independently of any
infrastructures. Currently available systems are functioning in the
2.4GHz and High UHF bands, offering effective short range
communications with low interference and adequate bandwidth
utilization. Most systems are offering duplex conference operating
modes, and selective one-to-one (peer to peer) communications. PRR
communicators rely on a network concentrator unit (which could be
one of the radios) to communicate with all systems and act as system
synchronization unit. Some systems are designed to operate without
synchronization, enabling truly independent communications.
Modern intra-squad specialized Personal Role Radios (PRR) offer
effective communications within the squad and between combat teams,
enabling effective dismounted infantry operations at a level
previously reserved only for Special Forces.
Current PRRs offer
conference operating mode, when the commander can speak to all
soldiers and get their responses) or in peer-to-peer (one on one).
Systems utilize full duplex communications which is mimics natural
voice communications. PRRs support line of sight communications at
ranges of few hundred meters, and sustain continuous operation for
10 – 12 hours (sufficient for overnight activity). Systems support
mainly voice but some can also transfer data at low bit rate, to
distribute reports, preset messages etc. As PRRs operate at very low
power and high frequencies, there are significant difficulties in
communications in urban terrain, mountainous area and densely wooded
(jungle) environments. Another limitation is the absence of data
communications, and low data rate offered by those sets that do
support data communications. Future systems, currently under
development in the USA, are part of the
Integrated Communications Environment (SLICE) program, which
will be part of the Future Force Warrior
infantry combat system.