Ira Wiesenfeld, P.E., CETms, has been involved with commercial radio systems since 1966. Currently he is the president and principal engineer at IWA Technical Services Inc. (IWATSI). IWATSI provides engineering services and technical training in the land mobile radio and paging industries. He has a BSEE from Southern Methodist University in Dallas, TX; holds an FCC GROL; has an Extra Class amateur radio license (WA5GXP); and, is a licensed professional engineer in the State of Texas. He is a lifetime senior member of IEEE. His experience has included broadcast engineering; LMR system design, installation, and maintenance; manufacturing; training on electronic and communications systems, including PIM and Antenna Line Sweep testing; utilization of communications service monitors; radio paging systems; and military communications systems. Ira has served on the executive committee as Vice-Chairman, Treasurer and Secretary, and is currently the Chairman of the Electronics Technicians Association-International; and has played a pivotal role in the development of new certifications including the DAS, DASI, DASC, WCM, USMSS, FDR/LAS, GCT 1, GCT 2, GCT 3, RFIM, MCEI, and PIM. He is a subject matter expert for the NFPA in the area of emergency communication systems and is currently serving on the ERRCS 1221 and 1225 committee. He also was a major contributor in the development of the FCC GROL currently used today. Ira has authored and co-authored numerous books, and has also authored over 60 magazine articles on radio related technology and applications.