On Monday, 6 September 2021 01:18:33 BST Nicolas Dandrimont wrote: > The analog system operates in the 823-832 MHz "S8" band; the digital system operates in the 823-832 MHz and 863-865 MHz "S50" bands. > Hi You probably want to check what frequencies you can use in common target countries S50 is license exempt (in most places) while other frequencies would require you obtaining a license to use at each location -- Kenny (Pronouns: he/him)