Xref: utzoo sci.electronics:6321 sci.physics:8297 Path: utzoo!attcan!uunet!cs.utexas.edu!sun-barr!ames!apple!well!nagle From: nagle@well.UUCP (John Nagle) Newsgroups: sci.electronics,sci.physics Subject: Re: lightning Message-ID: <11866@well.UUCP> Date: 27 May 89 16:08:52 GMT References: <583@coplex.UUCP> <512@atlas.tegra.UUCP> Reply-To: nagle@well.UUCP (John Nagle) Lines: 10 The Stormscope is an old idea, dating back to at least the 1950s. The basic concept is simple; there are two antennas, 90 degrees apart, and you take the intensity of static bursts received on each, treat this as a vector, and plot. There's some way, which escapes me, to tell which quadrant the source is in. Early systems used a long-persistence CRT to display the data; modern systems are digital. Construction articles appeared in various electronics publications in the 1970s. John Nagle