February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

With the increasing need for more effective and efficient responses to man-made and natural public safety threats, the necessity for improved private mobile and commercial wireless digital communication systems has become apparent. This one-of-a-kind resource describes today's public safety communication requirements and radio systems from a technical perspective, and shows you how communication systems are evolving to meet the growing demands of multimedia wireless applications.