What extra rules apply on a ship, in the air, or near an airport?
Three places get special treatment: ships at sea, aircraft, and the area around an aerodrome.
On a ship at sea
Operating Maritime Mobile means being on a vessel at sea. The licence gives four conditions:
- Install, use or change the Station only with the written permission of the Vessel's master.
- Observe radio silence whenever the master advises it.
- In international waters, use only frequency bands allocated to the amateur service by the International Telecommunication Union (ITU).
- Cease operation of the Station if the Vessel's master demands it.
The master is the captain, so on a ship their word comes first.
Never in the air
You shall not establish or use the Station in any aircraft or other airborne vehicle. There is no exception in the tutorial: no aeroplane, no helicopter, no balloon.
Close to an aerodrome
An aerodrome is an airfield. If your station is within 800 metres of the boundary of any aerodrome, then the height of your aerial and any mast supporting it must not exceed 15 metres above ground level.
You now know
- At sea: get the master's written permission, observe radio silence on their advice, use only ITU amateur bands in international waters, and stop if the master demands.
- Never establish or use the station in an aircraft or other airborne vehicle.
- Within 800 m of an aerodrome boundary, the aerial and any mast must not exceed 15 m above ground level.