Global P25 Systems List Expands to Conventional Networks
Tuesday, July 05, 2016 | Comments

The Project 25 Technology Interest Group (PTIG) published an update to its list of known Project 25 (P25) systems in the United States, Australia, Canada, New Zealand and the United Kingdom. The significant change in this update is the addition of a new list of P25 conventional systems.

The P25 conventional systems total is 1,299, a surprising number as it is significantly more than the previously published P25 trunking system list, said PTIG Executive Director Steve Nichols.

The P25 trunking system list increased from 711 systems last November to 842 systems as of June. The total number of P25 systems on the combined lists is 2,141. The complete lists can be viewed and downloaded here.

Both P25 systems lists are organized by state and territory. The information for each system includes system name, user type (federal, tribal, public safety, utility, campus police and more) and frequency band. P25 trunking systems are identified as P25 Phase1 or Phase 2. P25 conventional systems are identified as digital only or mixed-mode analog and digital.

The new P25 conventional list presented a challenge because of the definition of what represented a single stand-alone P25 system versus a shared combined P25 system. The methodology used for the definition is included in the P25 conventional list.

When the frequency bands in use are compared, VHF dominates the P25 conventional system list, while 800 MHz and UHF dominate the P25 trunking system list.

The user category breakdown is similar between the P25 conventional and trunking lists. The public-safety category dominates both P25 system types followed by federal agencies and military. Military P25 systems make up 4 percent of P25 conventional systems and a much larger 16 percent for all P25 trunking systems. Schools and universities make up 2 percent of the P25 conventional list. Utilities (3 percent), airports/transportation (3 percent) and industrial (2 percent) are all present in the P25 trunking list.

PTIG members include two-way radio communications experts, public-safety professionals and equipment manufacturers.

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