Leopold Gregorač graduated from the Faculty of Electrotechnics in 1969.
In the same year he joined RTV Slovenia and was employed there until 2000, the last ten years as Managing Director of the Transmitters and Links.
In November 2001 he was retired due to health problems.

Professionally, he has always taken interest in electromagnetic radiation, antennas and propagation of waves. From 1983 to 1994 Mr. Gregorač was active in C.C.C.R. (ITU) and is the co-author of  ITU Report 879-1.
From 1994 to 2000 he was a member of the European BRFE group. The group was assigned the task to deal with electromagnetic radiation and in November 2001 published a book Radio Frequency Radiation: Exposure Limits and Their Implications for Broadcasters, EBU, BPN, Geneve 2001, in which Mr Gregorač is a co-author.
He is the co-author and project leader of the project of the book: J.Budin, L.Gregorač, T. Mlinar (Slovenia), S.Eggert, L.von Klitzing (Germany), Electromagnetic Radiation, Ljubljana 2004.
He acquired one American patent, too.
He is the author of several other articles, published in well-known foreign reviews. The latest, known in the world is about secret American microwave weapon “Microwave ADT weapon of 21 ^st century”   published in the magazine “Military Technology, May 2004” and you can find it on Internet, too.
In the article »The invisible F 117-How it was shot down« he proved that F117 was not invisible for radars signal.
He has given lectures at symposia in the USA (NAB), Great Britain (IBC) and Germany (VDE).
He is now a Senior Consultant of the Institute for Telecommunication in Ljubljana.