WSPR Desktop - US Ham Operating in Italy Question I am currently in Italy and want to operate my WSPR Desktop but need to add the Prefix I3/ to my US Amateur Extra Callsign. However, you are only allowed to use a 6 digit Callsign and I am unable to check the Prefix button to add the I3/KO4DFJ. I also travel to the UK but I do have a UK Callsign so won't be a problem there. Any suggestions?

I travel a lot and do use other callsigns based on what country I'm in. I don't always have a PC laptop with me and unable to download software to change my callsign. Any suggestions or is there software for those operating systems in the works? de KO4DFJ