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Practical radio simulator

Practise VHF, MF/HF, NAVTEX, satellite text, EPIRB and radar SART equipment in a safe local simulation.

Instructions are available in your language. Standard radio transmissions and audio remain in English. This local simulator transmits nothing and uses no microphone.

Procedure sources and exercise catalogue

70 exercises: 8 foundations and 62 communication scenarios, with 124 communication variants. Procedure review: 9 September 2026.

Browse exercises (70)
  1. Routine VHF Voice Exchange
  2. Individual Routine DSC Call
  3. MF DSC and Voice
  4. NAVTEX Weather MSI
  5. Addressed Satellite Message
  6. Reserve Power and GNSS Loss
  7. EPIRB and SART Familiarization
  8. Local Distress Familiarization
  9. Incoming VHF routine voice call
  10. Outgoing VHF routine voice call
  11. Incoming individual routine DSC
  12. Outgoing individual routine DSC
  13. Routine call addressed to another vessel
  14. Coast/VTS report and working-channel exchange
  15. Outgoing MF routine DSC and voice
  16. Incoming MF routine voice
  17. Outgoing PAN PAN
  18. Incoming PAN PAN
  19. Medical advice and shore clarification
  20. Cancellation of urgency situation
  21. Outgoing SECURITE navigation hazard
  22. Incoming SECURITE announcement and bulletin
  23. All-ships safety DSC with voice follow-up
  24. Own-vessel VHF distress alert and MAYDAY
  25. Received VHF distress: coast acknowledgement and traffic
  26. Received VHF distress: continuing nearby/no coast reply
  27. Received MF distress
  28. Received HF unacknowledged distress
  29. Relay for a vessel unable to alert
  30. False VHF alert cancellation and reporting
  31. Accidental satellite alert cancellation and reporting
  32. SAR/RCC follow-up assistance report
  33. Relevant NAVTEX navigation warning
  34. Weather MSI interpretation and validity
  35. NAVTEX wrong station and service recovery
  36. Incoming shore satellite message requiring reply
  37. Outgoing satellite position report and receipt distinction
  38. EGC SafetyNET or SafetyCast coverage interpretation
  39. Busy channel: listen then call
  40. Missed voice call and repeat request
  41. Incorrect channel readback and clarification
  42. Stale or lost GNSS manual position procedure
  43. Mains, reserve, and alternate radio
  44. Simultaneous routine and distress priority
  45. HF4 distress: coast control and assistance
  46. HF6 distress: coast control and assistance
  47. HF8 distress: coast control and assistance
  48. HF12 distress: coast control and assistance
  49. HF16 distress: coast control and assistance
  50. HF4 unacknowledged alert: inform RCC first
  51. HF6 unacknowledged alert: inform RCC first
  52. HF8 unacknowledged alert: inform RCC first
  53. HF12 unacknowledged alert: inform RCC first
  54. HF16 unacknowledged alert: inform RCC first
  55. MF false alert: cancel on the matching band
  56. HF4 false alert: cancel on the matching band
  57. HF6 false alert: cancel on the matching band
  58. HF8 false alert: cancel on the matching band
  59. HF12 false alert: cancel on the matching band
  60. HF16 false alert: cancel on the matching band
  61. VHF PAN PAN: DSC announcement and voice reception
  62. MF PAN PAN: DSC announcement and voice reception
  63. HF8 PAN PAN: DSC announcement and voice reception
  64. MF SECURITE: DSC announcement and voice reception
  65. HF4 SECURITE: DSC announcement and voice reception
  66. HF12 SECURITE: DSC announcement and voice reception
  67. Distress control: respect SEELONCE MAYDAY
  68. Distress control: recognize SEELONCE FEENEE
  69. MF continuing nearby distress: radiotelephone acknowledgement
  70. Own MF distress: voice message after DSC acknowledgement