Project 25 is a public safety communications standard dedicated to ensuring interoperability in communications. It is designed to ensure fast and secure communications between local, state and federal agencies when protecting the public's welfare.

The Project 25 standard organization is comprised of the Association of Public Safety Communications Officials (APCO), the National Association of State Telecommunications Directors (NASTD) and the U.S. Federal Government. The Telecommunications Industry Association (TIA) offers manufacturers representation in the standard's creation and modification.

P25 Resources

Testing Technology White Paper
P25 White Paper
Putting Project 25 to the Test
Using the 3920 for P25 Performance Testing
Glossary of P25 Terms
Testing SmartNet/SmartZone Systems
The 2975 - An Advanced P25 and Analog Test System
Understanding 800 MHz and VHF/UHF Implicit P25 Trunking Functions using the IFR 2975
Understanding Advanced P25 Control Channel Functions
Understanding PassPort® Radio Systems
Using the 2975 to perform Control Channel Logging
Using the IFR 2975 for Advanced P25 Phase II and LSM Analysis
Using the IFR 2975 for Advanced Project 25 Keyloading Capabilities and AES/DES Encryption
PXI-based Radio Communications Testing

External Resources

Taking Control of P25 Systems
Understanding P25 Modulation Fidelity

Useful Links

Aeroflex
Daniel's P25 Training Guide
Project 25
P25 Discussion Forum
APCO 911
Project Mesa
TIA

NASTD
TETRA
ETSI
NIST
FCC
NTIA
Communications Tools

P25 Test Equipment

3500A Radio Test Set

The industry's first 1 GHz hand-held radio test set. At less than 8 lbs, and packaged in a cast magnesium alloy case, the 3500A is truly a rugged and portable test set.
Click here for details

3920 Radio Test Set

The 3920 is the latest in next generation portable test for advanced professional analog and digital radiocommunications.
Click here for details

P25.com