This freqy 452.0250 is on the FCC web site from a freqy management company ...The call letters are WPSE990 and is used in Dundas,IL, if thats in ur area....It maybe a single freqy LTR type system....U would see a TG like 0-01-003 if it was set in the scanner as a LTR system for business use but rented to a user....