Tunnel radios and dead zones
Applicability: Gravity-based and/or hybrid self-unloading vessels discharging bulk cargo ashore or offshore. Complete Section 8E together with 8A and/or 8B as appropriate to the cargo.
What is being checked
Suitable radios and coverage safeguards support tunnel communication.
Ready on board
0 / 3 checkedCheck the vessel’s actual procedures, equipment and records against these points from RISQ 3.2.
Practice questions
Preparation prompts derived from this entry, not an official inspector interview script.
1Does enough equipment alone establish reliable tunnel communication?
No. The question separately requires identification of dead zones and safeguards.
Where a finding may arise
Missing evidence, defects or gaps in familiarity against these checks may prevent a satisfactory answer. These are derived preparation concerns, not additional explicit finding criteria or reported past observations.
Past observations for practice
Anonymised reports, manually reviewed before publication. These are reported experiences, not additional inspection requirements.
No reviewed observations have been added for this entry.
Share an observation for private review
Remove vessel, company and inspector names, report numbers, exact dates and confidential information. Do not paste a complete inspection report.
Source clarification
No additional radio count, frequency or safeguard technology is specified.
References and source status
RightShip Inspection Ship Questionnaire, November 2025, version 3.2. Section 8E, page 165, reference 8.33.
The explanation, checklist and practice answer derive from the supplied questionnaire. Reported observations are separately contributed and manually reviewed; they are not official RISQ guidance.
Independent DeepDraft preparation guide, based on the supplied RISQ 3.2 questionnaire. Not an official RightShip product or inspection report.