Project 25 Technology Information Group

Friday, September 17, 2021

Project 25 Technology Information Group

The Project 25 Technology Interest Group (PTIG) publishes a New Whitepaper:

P25 Sharing = Cost Savings and Improved Interoperability

By: Dominick Arcuri, PE, PMP, ENP, SMC: Televate, LLC


The growth of Statewide and Region-wide P25 LMR networks has presented a new value proposition for many counties and municipal agencies. It is now often more cost effective to join the larger P25 Standards based system than to procure/support/maintain or upgrade an existing legacy radio solution. Potential cost saving opportunities include:

  • Sharing of infrastructure equipment (capital and recurring cost savings) Sharing of services (site/network connectivity, equipment provisioning, support services, encryption)
  • Bulk purchasing advantages, and
  • Competitive equipment purchases.

In addition to these benefits, adoption of P25 can also result in significant cost savings to an agency or to a group of regional partners. The P25 architecture offers a wide variety of ways and system levels to implement the technology as it is capable of scaling from simple single-site systems to large statewide and province-wide networks

Many agencies also receive significant operational benefits from shared P25 System use. Previous stand-alone systems are now directly linked to larger systems offering region-wide and state-wide radio coverage and roaming. The shared talkgroups used for shared system access now permit superior mutual aid for multiple agencies in response to natural disasters and large planned events.


The full Whitepaper can be downloaded using the link below:


 P25 Sharing Equals Cost Savings Whitepaper




Project 25 Standards Update: New Orleans Meetings February 4-6 2020

Andy Davis, Chairman, TIA TR-8 Committee

This document highlights TR-8 accomplishments and work in progress for 2020. The document will be updated after every TR-8 face to face meeting occurring in 2020. The filename reflects the date of the latest update. After the first 2020 version, each update will use blue font to indicate the updates.


The full report can be downloaded using the link below:

P25 Standards Update TIA TR-8 New Orleans Feb 2020

Project 25 Technology Interest Group (PTIG) Welcomes Sonia Kendall to the Board of Directors.

The Project 25 Technology Interest Group (PTIG) is pleased to welcome Sonia Kendall, US Coast Guard, to the PTIG Board of Directors. “Sonia’s experience with P25 Interoperable Communications and her longstanding participation in the TIA TR-8 P25 Standards process makes her an ideal addition to our Board. Many of our P25 User agencies require reliable interoperable communications with the US Coast Guard and Sonia can help establish and maintain these relationships” said Stephen Nichols, PTIG Director. “She can well represent the specific user needs from the US Coast Guard perspective”.

Ms. Kendall is currently assigned to the office of Office of Enterprise Architecture and Technology Innovation (CG-67) as the Coast Guards communications interoperability coordinator for Public Safety communications. In this position she coordinates interoperability efforts of the Department of Homeland Security, Federal, State, and local port partners. Additionally, she represents the Coast Guard in national telecom standards, regulatory and advisory organizations and she liaisons with Coast Guard program managers affected by these standards and regulations. She also oversees long range communications and Coast Guard record messaging from a programmatic and policy perspective.

Ms. Kendall holds an MBA Degree from Columbia Southern University, a Bachelor of Science Degree in Information Systems Management from the University of Maryland University College, and a General Associate’s Degree from Phoenix University.

Prior to this assignment, Ms. Kendall was active duty Coast Guard and served as the Satellite Communications Asset Manager. Her 25-year Navy/Coast Guard active duty career (Enlisted – Warrant- LT) was solely focused in Control, Communications, Computers and Information Technology related work.

The Project 25 Technology Interest Group (PTIG) has published the latest ISSI/CSSI Non CAP Interoperability Test Report. The testing was done between a Telex C-Soft P25 Console and a Tait P25 RFSS.

The information contained in the report has been provided by the suppliers of the products with permission to make the information publicly available. The Project 25 Technology Interest Group (PTIG) is making this information available as a public service.

If you have questions regarding the testing please contact the signatories to the test report using their email found on the Gerneral Information tab of the report.

A copy of the report can be downloaded using the link below:


TELEX-TAIT Non-CAP ISSI-CSSI Interoperability Test

PTIG publishes a new Case Study on the P25 VIPER System in North Carolina


At the recent TIA TR-8 P25 Standards Meetings in Charlotte North Carolina, an overview of the North Carolina VIPER System was presented by Greg Hauser.  Greg is the Communications Branch Manager and Statewide Interoperability Coordinator (SWIC) for North Carolina Emergency Management.  The Case Study includes "Wins" and Gaps" for the 122,000 users on the Statewide P25 Network.


The Case study can be viewed using the link below:

P25 Viper System, North Carolina





Web Boy Design Website Development by Web Boy Design, Inc