Project 25 Technology Information Group


Sunday, November 19, 2017

Project 25 Technology Information Group

PTIG presented a Panel on Project 25 Basics for the Non Technologist at the recent APCO Show

Project 25 has evolved as the dominant Standard for Public Safety communications systems in North America. Many PSAPs are now operating P25 Systems. FCC narrowband requirements have caused many older systems to be recently upgraded to P25 to meet FCC narrowband requirements. Also many existing P25 Phase 1 networks are in the process of migration to more spectrum efficient P25 Phase 2. Through all this, P25 remains a complex and mysterious entity for the majority of dispatchers, radio system administrators and other practitioners. At best it seems clouded in technical engineering jargon with few direct links from the technical workings of the systems and products to benefits for the users of the equipment.

This session covered the basics of the standard and details the various over the air interfaces and network interfaces and how they enable interoperability between: multiple users, agencies, jurisdictions and regions. It also explained the potential barriers to interoperability.

 

Neil Horden: Chief Consultant, Federal Engineering:

 

The basics of the standard and details about the various over the air interfaces and network interfaces and how they enable interoperability between: multiple users, agencies, jurisdictions and regions. Potential barriers to interoperability.  Detailed explanations of unit to unit interoperability using the Common Air Interface as well as network links using the Console Interface, Inter-System interface and Fixed station interface. Explanation of the evolution of P25 from Phase 1 systems to Phase 2 systems.

 

Jim Downes: DHS Office of Emergency Communications

 

A variety of Frequently Asked questions were asked and answered in laymen’s terms about P25. Some examples: What is P25? How does it facilitate interoperability? What is P25 Phase1? Phase2? Does the future First-Net LTE broadband data network make P25 obsolete? How to get Multi Vendor radios approved on a P25 system. P25 ISSI and CSSI and Interoperability, P25 Encryption, When will the P25 Standard be complete?

 

Jim Junkins: Director, Harrisonville/Rockingham Emergency Communications

 

1) Phase 1/Phase 2 mixed mode fleet mapping, 2) User radio programming concepts/overview...dealing with the complexities and intricacies of programming multiple P25 systems, with legacy, non-public safety systems as well as multi-band radios, etc.  

 

Steve Nichols: PTIG

 

A variety of resource materials and tools such as the P25 FAQ resource, P25 capabilities Guide, NPSTC PAM tool, and Project 25 Standards update were identified and access links shared.

Full PPT for the P25 Session Download

 

 


 

 

 

 

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