Grönt Niagara i mörkt rum avslöjar osynligt flygplan

This newspaper article, written by an author identified as 'Leo', provides a descriptive overview of a Swedish radar station located in a cabin on a hill outside Uppsala. The author details the internal environment of the station, which is kept dark and warm to allow operators to observe the radar display, described as a 'green Niagara' of light. The article explains the technical principles of the radar, noting that it transmits short radio impulses—lasting a few millionths of a second—to detect solid objects like aircraft. The system calculates distance and direction based on the time taken for the signal to reflect back to the receiver, a process that remains effective regardless of fog or cloud cover, provided the object is not obscured by the curvature of the earth. The text highlights the historical significance of radar technology, mentioning its role in the Battle of the Atlantic and the Blitz. Major Lennart Peyron, Chief of Staff of the Third Squadron, is quoted regarding Sweden's current standing in radar development, noting that while they are behind the Western powers, they are at a comparable level to other nations. Flight engineer Torsten Gussing and Captain Sven Hedberg provide anecdotes about the use of these devices, including tracking Allied bomber fleets over the Baltic Sea and the installation of a radar unit on the Great Pyramid of Giza during the Cairo Conference to warn of potential German attacks. The article concludes with a demonstration of the radar's precision, as it successfully identifies the tower of the Uppsala Cathedral and the city's silhouette.