Commercial Radio
FCC Commercial Element 9 — GMDSS Radio Maintenance Practices and Procedures Exam Preparation
Prepare for FCC Element 9 through 50 GMDSS maintenance key topics, all 300 controlled official-pool questions, current-practice overlays, virtual service-bench decisions, remediation, and fresh 50-question simulations.
Who this is for
Intended audience
Commercial radio and marine-electronics candidates preparing for the FCC GMDSS Radio Maintainer examination pathway or structured GMDSS maintenance knowledge review.
Relevant industries: Maritime, Offshore, Marine Electronics
Learning outcomes
What learners will work toward
- Diagnose VHF-DSC, MF/HF-DSC, NBDP, satellite, survival, power, bridge-network, installation, and test-instrument systems represented by the controlled FCC pool.
- Complete and remediate all 300 official-pool questions while preserving a clear boundary between the approved key and current-practice or legacy-equipment overlays.
- Apply safe, evidence-based virtual maintenance workflows without creating false alerts, uncontrolled RF emissions, hazardous-energy exposure, or unsupported return-to-service claims.
- Complete fresh 50-question simulations using one protected item from each Element 9 key topic and distinguish course evidence from an FCC/COLEM result or regulated authorization.
Course outline
7 modules
Section A: VHF-DSC Equipment and Operation
VHF service monitor, receiver/transmitter, DSC, deviation, SINAD, SWR, and antenna fault isolation.
Section B: MF-HF-DSC and SITOR (NBDP) Equipment and Operation
MF/HF SSB, NBDP, DSC, receiver/transmitter, synthesizer, tuner, and antenna diagnosis.
Section C: Satellite Systems
Inmarsat, Fleet terminals, LRIT, GPS, antenna tracking, interfaces, and terminal fault isolation.
Section D: Other GMDSS Equipment
EPIRB, SART, survival-craft VHF, NAVTEX testing, maintenance, and safe service decisions.
Section E: Power Sources
Batteries, chargers, reserve energy, rectifiers, filters, switch-mode supplies, and protection circuits.
Section F: Other Equipment and Networks
Computers, Ethernet, NMEA 0183/2000, bridge electronics, AIS, SSAS, ECDIS, autopilot, and VDR.
Section G: Inspections, Installations, and Instruments
Installation, annual-inspection boundaries, DMM accuracy, RF instruments, and evidence-based testing.
Assessment and completion
Requirements stay explicit.
Assessment plan: Protected 300-question official-pool mastery program and fresh 50-question final mock with one item from every key topic. The benchmark is 38 correct (76%); mock results are not official FCC results.
Questions
Frequently asked
Is this an official OSHA or third-party certification?
No. IM Academi will identify the course provider and the exact completion outcome. It will not imply OSHA authorization, regulatory qualification, or another organization's certification unless the applicable authorization has been obtained and documented.
Does my employer still need to provide site-specific training?
Often, yes. Site hazards, procedures, equipment, emergency plans, supervision, and role authorization remain employer responsibilities. This page states course-specific boundaries but cannot replace an employer's hazard assessment.
What happens if a practical component is required?
The knowledge portion and practical evaluation are tracked separately. Final completion depends on the published course rules and a documented evaluation by an approved evaluator.
Need this course for a team?
Discuss assignments, delivery, practical coordination, and reporting needs.