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Italy Short Range Certificate SRC — Certificato di Operatore Radio Short Range (MIMIT)

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Key Facts: Italy LRC Marine Radio Exam

EUR 25.00

Statutory Examination Fee (Contributo Esami GMDSS)

MIMIT, Modello Domanda Esame LRC-SRC

16 years

Minimum Age for Italian LRC Eligibility

D.M. 25 settembre 2018, n. 134, art. 2(3)(b)

Areas A1-A4

Operational Sea Areas Covered by LRC (Worldwide)

D.M. 134/2018, art. 1(3); SOLAS Chapter IV

8414.5 kHz

Mandatory HF DSC Distress & Safety Watchkeeping Frequency

ITU Radio Regulations; D.M. 134/2018 Allegato 3

Pass/Fail

Grading System for Practical Simulator and Oral Test

D.M. 25 settembre 2018, n. 134, art. 2

Italy's Long Range Certificate (LRC) is examined via remote practical simulator and oral tests under D.M. 134/2018. This bank is independent English-language MCQ practice for the official syllabus, not a simulator replacement.

Sample Italy LRC Marine Radio Practice Questions

Try these sample questions to review concepts for the Italy LRC Marine Radio exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under GMDSS regulations and Allegato 3 of D.M. 134/2018, what is the official definition of Sea Area A2 (Area di mare A2)?
A.An area, excluding Sea Area A1, within the radiotelephone coverage of at least one MF coast station providing continuous DSC alerting
B.An area extending 200 nautical miles from the coast covered by VHF repeaters
C.An area covered exclusively by geostationary Inmarsat satellites
D.The polar ocean areas situated above 70° North and 70° South latitude
Explanation: Under GMDSS specifications and D.M. 25 settembre 2018, n. 134, Sea Area A2 is defined as an area, excluding Sea Area A1, within the radiotelephone coverage of at least one Medium Frequency (MF) coast station in which continuous digital selective calling (DSC on 2187.5 kHz) alerting is available. In practice, this extends approximately 100 to 150 nautical miles offshore.
2What is the official definition of Sea Area A3 (Area di mare A3) under GMDSS and D.M. 134/2018?
A.An area, excluding Sea Areas A1 and A2, within the coverage of an approved Recognized Mobile Satellite Service (such as Inmarsat geostationary satellites between approximately 70°N and 70°S) providing continuous alerting
B.The Mediterranean Sea basin up to the Strait of Gibraltar
C.Any coastal area located more than 12 nautical miles from an international port
D.The polar ice cap where only HF radio propagation is possible
Explanation: Sea Area A3 comprises oceanic regions, excluding Sea Areas A1 and A2, within the coverage area of an approved Recognized Mobile Satellite Service (RMSS, traditionally Inmarsat geostationary satellites operating between approximately 70° North and 70° South latitude) in which continuous distress alerting is available.
3What defines Sea Area A4 (Area di mare A4) under international maritime radio regulations?
A.An area outside Sea Areas A1, A2, and A3, comprising the polar regions roughly above 70° North and 70° South where geostationary satellite coverage is unavailable and HF radiocommunications are required
B.The territorial waters of landlocked nations
C.Navigable inland lakes and rivers under European CEVNI rules
D.The airspace above 10,000 meters utilized by search and rescue aircraft
Explanation: Sea Area A4 encompasses all maritime areas outside Sea Areas A1, A2, and A3. These are primarily the high Arctic and Antarctic polar regions (roughly above 70° to 75° North and South) where geostationary Inmarsat satellites drop below the horizon. In Area A4, long-range GMDSS distress communications depend on MF/HF marine radio or polar-capable LEO satellite constellations.
4What is the designated international Digital Selective Calling (DSC) distress and safety frequency on the Medium Frequency (MF) band?
A.2187.5 kHz
B.2182.0 kHz
C.2174.5 kHz
D.518.0 kHz
Explanation: Under Appendix 15 of the ITU Radio Regulations, 2187.5 kHz is the sole dedicated international Medium Frequency (MF) digital selective calling (DSC) frequency for distress, urgency, and safety. Voice communication is strictly prohibited on 2187.5 kHz.
5What is the designated international Medium Frequency (MF) radiotelephony voice distress and calling frequency?
A.2182.0 kHz
B.2187.5 kHz
C.156.800 MHz
D.4125.0 kHz
Explanation: 2182.0 kHz (carrier frequency in J3E upper sideband mode) is the international radiotelephony distress, urgency, and calling frequency on the maritime Medium Frequency (MF) band. Follow-up voice communications after an MF DSC distress alert on 2187.5 kHz are conducted on 2182.0 kHz.
6Which of the following is the primary international High Frequency (HF) DSC distress and safety frequency that must be monitored continuously alongside 2187.5 kHz?
A.8414.5 kHz
B.4207.5 kHz
C.6312.0 kHz
D.12577.0 kHz
Explanation: Under SOLAS Chapter IV and ITU Radio Regulations, 8414.5 kHz is designated as the primary international HF DSC distress and safety frequency. All GMDSS stations maintaining an HF watch must keep a continuous automated watch on 8414.5 kHz and at least one other HF distress frequency chosen according to propagation conditions.
7What are the five standardized GMDSS High Frequency (HF) Digital Selective Calling (DSC) distress and safety frequencies?
A.4207.5 kHz, 6312.0 kHz, 8414.5 kHz, 12577.0 kHz, and 16804.5 kHz
B.4125.0 kHz, 6215.0 kHz, 8291.0 kHz, 12290.0 kHz, and 16420.0 kHz
C.2182.0 kHz, 4125.0 kHz, 8414.5 kHz, 12577.0 kHz, and 22000.0 kHz
D.156.525 MHz, 2187.5 kHz, 4207.5 kHz, 8414.5 kHz, and 16804.5 kHz
Explanation: The five internationally allocated HF DSC distress frequencies under ITU Appendix 15 are: 4207.5 kHz (4 MHz band), 6312.0 kHz (6 MHz band), 8414.5 kHz (8 MHz band), 12577.0 kHz (12 MHz band), and 16804.5 kHz (16 MHz band).
8Which of the following is the primary international High Frequency (HF) radiotelephony voice distress frequency used on the 8 MHz band?
A.8291.0 kHz
B.8414.5 kHz
C.8376.5 kHz
D.8255.0 kHz
Explanation: 8291.0 kHz (in J3E USB mode) is the dedicated international HF radiotelephone voice distress frequency in the 8 MHz band. It is used for voice distress traffic following an 8414.5 kHz DSC alert.
9What modulation and emission class is standardized for radiotelephony communications across maritime MF and HF bands?
A.J3E (Single Sideband, Suppressed Carrier, Upper Sideband)
B.F3E (Frequency Modulation with 25 kHz deviation)
C.A3E (Double Sideband Amplitude Modulation with full carrier)
D.J2B (Single Sideband with tone-modulated digital subcarrier)
Explanation: ITU Radio Regulations mandate J3E Upper Sideband (USB) with suppressed carrier for maritime radiotelephony on all MF and HF frequencies above 1606.5 kHz. J3E provides high spectral efficiency, concentrates all transmitter power into the information-bearing voice sideband, and requires only 3 kHz of bandwidth.
10What is the function of an Antenna Tuning Unit (ATU / accordatore d'antenna) in a maritime MF/HF SSB radio installation?
A.To electrically match the variable impedance of the whip or long-wire antenna to the fixed 50-Ohm output impedance of the transmitter across multiple frequencies
B.To convert DC battery power from 12 Volts to 220 Volts AC
C.To mechanically rotate the antenna towards the receiving coast station
D.To demodulate digital DSC packets on Channel 70
Explanation: Because a single marine MF/HF antenna (whip or backstay) must operate across a wide frequency range (from 1.6 MHz to 27.5 MHz), its physical length is resonant at only one frequency. The ATU automatically introduces inductive or capacitive reactance to tune the antenna system into resonance and transform its complex feedpoint impedance to match the transmitter's 50-ohm output impedance, minimizing VSWR.

About the Italy LRC Marine Radio Exam

The Long Range Certificate (LRC) is the premier statutory Italian marine radio operator certificate under D.M. 25 settembre 2018, n. 134 for non-SOLAS vessels (pleasure craft and small commercial vessels) operating in all GMDSS sea areas (A1, A2, A3, and A4). It entitles the holder to operate MF/HF SSB marine radio stations, Digital Selective Calling (DSC) on all maritime bands, and maritime mobile satellite systems (Inmarsat and Iridium). The examination tests practical simulator handling across MF/HF and satellite equipment, radio wave propagation theory, maritime geography, distress procedures, and maritime English. OpenExamPrep provides an independent 100-question English-language MCQ study bank adapted to this syllabus.

Exam sponsor: Ministero delle Imprese e del Made in Italy (MIMIT) — Direzione Generale per i Servizi Territoriali. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Practical simulator test on the virtual consoles of the Sala Nautica (operation of VHF, MF/HF radio transceivers, DSC controllers, and Inmarsat satellite terminals; distress alerting; routine calls) and oral colloquium covering radio propagation theory, antenna matching, maritime geography, NAVAREA coordination, GMDSS emergency procedures, and maritime English. Administered remotely by video conference pursuant to Decreto direttoriale 25 settembre 2025.

Time Limit

varies

Passing Score

pass-fail

Exam / Certification Fees

EUR 25.00 examination fee (DGST pagoPA portal) plus a EUR 16.00 revenue stamp on the application form

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

25%

General Knowledge of GMDSS Sea Areas A1-A4 & Equipment Architecture

GMDSS sea areas A1 through A4, MF/HF transceivers, distress frequencies (2187.5 kHz, 8414.5 kHz), antenna tuning units (ATU), and vessel grounding.

25%

Radio Wave Propagation, Frequency Selection & Maritime Geography

Ground wave and sky wave propagation, ionospheric layers (D, E, F1, F2), MUF/LUF, day/night frequency selection, and NAVAREA/METAREA global layout.

25%

Satellite Communications, Inmarsat C, EGC SafetyNET & EPIRB/SART

Inmarsat satellite constellation, Inmarsat C messaging and distress priority, EGC SafetyNET broadcasts, Iridium GMDSS, and 406 MHz satellite EPIRBs.

25%

MF/HF & DSC Operational Procedures, Regulations & Maritime English

MF/HF DSC distress, urgency and safety procedures, prohibition of ship DSC acknowledgments on MF/HF, voice communications, CIRM medical assistance, and IMO SMCP.

Preparing for the Italy LRC Marine Radio Exam

What You Need to Know

  • Passing score: pass-fail
  • Assessment: Practical simulator test on the virtual consoles of the Sala Nautica (operation of VHF, MF/HF radio transceivers, DSC controllers, and Inmarsat satellite terminals; distress alerting; routine calls) and oral colloquium covering radio propagation theory, antenna matching, maritime geography, NAVAREA coordination, GMDSS emergency procedures, and maritime English. Administered remotely by video conference pursuant to Decreto direttoriale 25 settembre 2025.
  • Time limit: varies
  • Exam / certification fees: EUR 25.00 examination fee (DGST pagoPA portal) plus a EUR 16.00 revenue stamp on the application form Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Italy LRC Marine Radio: Suggested Study Strategy

1Remember the golden rule for MF/HF DSC distress alerts: as a ship station, NEVER acknowledge an MF or HF DSC distress alert by DSC. Always listen on the associated voice frequency (2182 kHz for MF, or 8291 kHz for HF) and wait for a coast station to acknowledge.
2Understand ionospheric propagation: the D layer absorbs lower frequencies during daylight and disappears at night; the F layer reflects HF sky waves. Consequently, use lower frequencies (4 to 8 MHz) for shorter distances or nighttime communications, and higher frequencies (12 to 22 MHz) for longer distances during daylight.
3Know the dedicated distress frequencies by heart: 2187.5 kHz (MF DSC), 8414.5 kHz (the primary HF DSC frequency continuously monitored alongside 2187.5 kHz and Ch 70), and 8291 kHz (the standard HF voice distress frequency).
4Learn Inmarsat C functionality: sending a Distress Alert requires lifting the protective cover and pressing the dedicated Distress button for 5 seconds; it is automatically routed via a Land Earth Station (LES) to the associated MRCC.
5Study NAVAREA geography: the Mediterranean and Black Sea are designated as NAVAREA III, with Spain (Cadiz) acting as the area coordinator for navigational warnings.

Frequently Asked Questions

What is the difference between the Short Range Certificate (SRC) and the Long Range Certificate (LRC)?

The SRC is restricted to Sea Area A1 and covers only VHF and VHF-DSC equipment on non-SOLAS vessels. The LRC covers all four GMDSS Sea Areas (A1, A2, A3, and A4) and authorises the operation of MF/HF SSB transceivers, MF/HF DSC controllers, and satellite terminals (Inmarsat C, FleetBroadband, Iridium GMDSS). Furthermore, the LRC examination programme includes radio wave propagation theory, antenna tuning, and maritime geography (NAVAREAs and satellite footprints), which are not examined for the SRC.

Why is maritime geography examined on the LRC but not on the SRC?

Allegato 3 of D.M. 134/2018 closes the LRC programme with section D3.6, 'world geography with the main maritime routes and the related lines of communication', which has no counterpart in the SRC programme of Allegato 4. MIMIT's own examination page confirms this, listing the examined subjects as procedures and practical equipment handling, English, and geography — 'non per SRC'. In practice a long-range operator must know global Search and Rescue regions, NAVAREA/METAREA coordination, Inmarsat ocean regions (AOR-E, AOR-W, IOR, POR), and the limits of geostationary satellite coverage at roughly 70°N to 70°S, beyond which Sea Area A4 begins. The SRC is confined to coastal VHF coverage within range of a coast station.

What are the key distress frequencies examined for the LRC?

Key frequencies include MF DSC at 2187.5 kHz, MF radiotelephony at 2182.0 kHz, HF DSC distress frequencies (4207.5, 6312.0, 8414.5, 12577.0, and 16804.5 kHz), and HF radiotelephone distress frequencies (4125, 6215, 8291, 12290, and 16420 kHz). A fundamental rule tested is that ship stations must never acknowledge an MF or HF DSC distress alert using DSC; acknowledgment is strictly reserved for coastal stations.

How is the Italian LRC examination administered?

Since Decreto direttoriale 25 settembre 2025, the MIMIT examining commission conducts LRC examinations remotely via video conference. Candidates perform simulated operations on virtual VHF, MF/HF, and Inmarsat consoles connected to the Sala Nautica of the Istituto Superiore CTI, and answer oral questions on propagation, emergency protocols, and maritime English.

Are OpenExamPrep practice questions official ministerial questions?

No. The official MIMIT LRC exam consists of oral questions and practical simulator drills. OpenExamPrep publishes an independent English-language four-option MCQ study bank structured across the Allegato 3 syllabus of D.M. 134/2018. It is designed as an educational tool to test technical knowledge and practical decision-making.