Apparatus and method for correlating a received communication of a known sequence over a wireless channel through the use of a finite impulse response filter having a small number of taps to reduce hardware requirement by as much as one-half that of conventional techniques while obtaining amplitude degradation which is no worse than experienced when employing conventional techniques. The grenade also includes a primer and trigger coupled to the ignition charge for detonation of the explosive charge held within the explosion chamber. The encoding processes used for MAC data employ more redundancy and are therefore capable of transmitting data without errors in more severe conditions than the encoding processes used for non-MAC data.