The new book "Signal Analysis for Radio Monitoring” 2018 Edition by Roland Proesch, DF3LZ has been completed and sent to the printer. It will be ready at end of May. http://www.frequencymanager.de/ The book will be introduced by Roland at the Ham Radio 2018 at Lake Konstanz from June 1 to 3. http://www.hamradio-friedrichshafen.de/ham-en/