The PRR was originally part of the wider Bowman radio project but was hived off in October 1999 for more rapid implementation, and the first of 45,000 units formally entered service in early 2002.
Operating in the 2.4 GHz band, PRR has integrated encryption but does not intercommunicate with the rest of the Bowman network, but is widely acclaimed as having revolutionised intra-squad communications and small-unit tactics.
Additional features being the ability to be re-configured in the field with 16 channels available on the selector knob and fifteen other groups of sixteen available with a simple tool.
The radio operates on spread spectrum and has a good level of security being designed with LPI (low probability of interception).
The switch unit is secured with a single screw, the slotted head being wide enough to accept the tang of the standard screwdriver tool supplied with the SA80 rifle.