QSO

From Wikipedia, the free encyclopedia

QSO is a three-letter abbreviation with multiple meanings, as described below:

• A quasi-stellar object (Quasar)
• The post-nominals of the Queen's Service Order
• The Queensland Symphony Orchestra
• The Quincy Symphony Orchestra based in Quincy, Massachusetts, United States
• A Q code for the exchange between two amateur radio operators or an SWL and an amateur radio operator or a commercial HF radio station
• The IATA airport code for Sousse, Tunisia
• Geology code for glacial Sumas Outwash sediment
• The Quantic Soul Orchestra