Greetings. I see many callsign suffixes used with WSPR; -1, /BEV, K3, /N and unlicensed callsigns such as KPH and it's many versions. I believe all these are used with stations that receive only and are comparing various receive setups. I have (3) three antennas I need to compare but on transmit as well as receive mode. What suffixes am I able to use legally? K7UV/, K7UV/7, etc. Is WSPR considered a beacon mode or not? (Maybe that open's another can of worms by itself!" Are there any others, /B (beacon) I'd guess it's also determined what the WSJT-X software allows, as well.Thanks & 73