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73KI7TRRP25 digital radio and RF engineering notes
ProjectsPostsEquipment

Projects

Radio projects

P25 digital radio work, RF engineering experiments, and practical notes from the bench.

on-air

P25 2M Repeater

A VHF P25 Phase 1 repeater project built around a M/A-COM MASTR III, GPS-disciplined frequency reference, cavity filtering, and a dedicated 2 meter antenna system.

  • VHF
  • 2m
  • P25 Phase 1
KI7TRR

A living notebook for KI7TRR digital radio projects, RF engineering experiments, and lab measurements.

Station

Pacific Northwest ยท DN17