Signal Flag Letter to Meaning Lookup
Bounded offline reference: BoundedcommonICSsinglelettermessages,qualifiedvariants(sound/fishing/port/naval/medical)not exhausted;actualcodebook/ruleedition external,no commandor navigationclearance. Only explicit listed topics;not exhaustive/live data or diagnosis,safety/compliance/identity certificate.
Description
Single-letter signal flags convey a bounded set of standalone messages in this implementation.
Single-letter signal flags convey a bounded set of standalone messages in this implementation.1
Operational meanings can depend on sound signals, vessel activity and codebook context.
When to use Signal Flag Letter to Meaning Lookup
Use this tool to apply the stated signal flag letter to meaning lookup operation with an explicit input and unit basis.
How to use Signal Flag Letter to Meaning Lookup and how it works
- Establish the measurement basis and units described above.
- Enter topic and run the tool.
- Read result.text using the output meanings below.
- If input is rejected, correct the stated type, range, ordering or alignment issue and rerun; review successful results under the declared convention.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| topic | Exact case-sensitive token from the inventory below. | string | required; further conditions in the algorithm |
Select an exact uppercase topic A–Z; return its stored message. R returns a note about the absence of an assigned standalone message in this inventory.
text = storedMessage[topic] Apply the declared units, ordering and branch conditions.
| Exact topic token | Stored response |
|---|---|
| A | I have a diver down; keep well clear at slow speed. |
| B | I am taking in, discharging, or carrying dangerous goods. |
| C | Yes (affirmative). |
| D | Keep clear of me; I am maneuvering with difficulty. |
| E | I am altering my course to starboard. |
| F | I am disabled; communicate with me. |
| G | I require a pilot. |
| H | I have a pilot on board. |
| I | I am altering my course to port. |
| J | I am on fire and have dangerous cargo; keep well clear. |
| K | I wish to communicate with you. |
| L | You should stop your vessel instantly. |
| M | My vessel is stopped and making no way through the water. |
| N | No (negative). |
| O | Man overboard. |
| P | In harbor: all persons should report on board; the vessel is about to proceed to sea. |
| Q | My vessel is healthy and I request free pratique. |
| R | No assigned standalone International Code of Signals message in this bounded inventory. |
| S | I am operating astern propulsion. |
| T | Keep clear of me; I am engaged in pair trawling. |
| U | You are running into danger. |
| V | I require assistance. |
| W | I require medical assistance. |
| X | Stop carrying out your intentions and watch for my signals. |
| Y | I am dragging my anchor. |
| Z | I require a tug. |
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the declared output fields. | object |
| result.text | Selected fixed record text; scope and topic inventory are given above. | string |
{
"input": {
"topic": "A"
},
"output": {
"result": {
"text": "I have a diver down; keep well clear at slow speed."
}
}
}Limitations and assumptions
The output applies the declared operation to the values you supply. Establish the measurement basis, units, coefficients and any caller-selected rules before interpreting it. The tool does not independently collect or verify observations or decide whether a model or reference applies.
Supply explicit required fields with the documented types and dense aligned arrays. Unknown fields, wrong types and nonfinite numbers are rejected. Branch-specific constraints are explained above. A successful false boolean, negative signed difference, empty slice or unresolved tie is distinct from an input error. Very large inputs or outputs may be rejected by shared resource limits.
Alternative or Complementary methods
For a related operation, use Substitute Pennant Position Decoder. A substitute pennant repeats a numbered flag position in an already resolved signal group.
For a related operation, use Numeric Pennant Value Decoder. Numeric pennants can be represented by already identified digit-name labels.
References
-
Signal Flag Letter to Meaning Lookup — tool.io
Similar or alternative tools
- Substitute Pennant Position Decoder
A substitute pennant repeats a numbered flag position in an already resolved signal group.
- Numeric Pennant Value Decoder
Numeric pennants can be represented by already identified digit-name labels.