P25 Direct Mode

P25 (Phase-1) Direct Mode Solution;

The direct mode of operation is offered as an encrypted and / or non-encrypted solution for scenarios whereby:

  • Users require a limited area of usage (small coverage area)
  • The central management needs to communicate over a single base station (in contrast to multiple base stations of a wide area system)
  • Voice communication is the priority, and data communication is not required
  • There is no obligation to use Time-Division Multiple Access (TDMA) because the number of user groups is not large and there is no problem with frequency allocation
  • Communication is mainly required in rural and/or mountainous areas.​

If the communication requirements of users change and they need a more advanced solution, the system can be converted into a wide area mode system (either conventional or trunking) by the means of: 

  • Adding base stations
  • Establishing a system management center
  • Connecting installed base stations to each other and to the switching unit in the system management center
  • Programming of the radios according to the new architecture