SPARC Member Meeting: 2024-11-26

Club Business

  • Elections
  • Ideas
    • Looking for help with fox hunt
      • have the transmitters
      • can get help from other clubs

Presentation: DMR with Jason

  • originally designed for professional radio installations.
    • lots of motorola gear
  • developed in europe first
  • digital voice
  • data
  • components
    • radios
    • repeaters
    • controllers (for routing traffic)
    • network infrastructure
  • lots of networking and linking over large areas.
  • types
    • tier 1 - consumer
    • tier 2 - professional, trunked
    • tier 3 - trunked, large-scale
  • TDMA (time-division multiple access) - 2 channels / slots
  • narrow bandwidth 12.5khz band
  • modes
    • private
    • group
    • broadcast
    • data: text, gps, telemetry
  • radio id is assigned by radioid.net to you and your call sign
  • talkgroup = collecting a bunch of radio ids into a single contact
  • popular public networks:
    • tgif
    • brandmeister
  • can also be a private network
  • hotspots access dmr network via the internet
  • delmarvadmr.com
  • 3 building blockse
    • talk groups
    • channels
    • zones
sparc  k3ir  meeting  dmr 

See also