Abstract: An aerological sonde for measuring meteorological conditions in the atmosphere. The aerological sonde includes a sonde casing having an outer casing surface and a measurement unit arranged inside the sonde casing. The outer casing surface of the sonde casing is arranged to form a sole drag surface of the aerological sonde such that a self-sustaining aerological sonde is formed.

Abstract: An aerological sonde for measuring meteorological conditions in a cyclonic storm, the aerological sonde including a sonde casing having an outer casing surface and measurement unit arranged inside the sonde casing. The outer casing surface is arranged to form a sole drag surface of the aerological sonde such that a self-sustaining aerological sonde is formed. The measurement unit of the self-sustaining aerological sonde includes a turbulence sensor arranged to measure change of movement of the self-sustaining aerological sonde.

Abstract: The invention relates to a method and an apparatus for codeless GPS positioning. According to the method, the unit (2) to be positioned receives GPS signals from several satellites (4), the codes of the GPS signals are removed, and the extracted carrier signals are transmitted out from the unit (2) to be positioned for the purpose of determining the position and/or velocity of said unit (2) to be positioned. According to the invention, the carrier signal frequencies are detected by means of a phase-locked loop and the thus detected signals are transmitted in digital format out from the unit (2) to be positioned for the purpose of further processing.