QSO

QSO

1. (radio abbreviation, question) Can you communicate with ... direct or by relay?
2. (radio abbreviation, statement) I can communicate with ... direct (or by relay through ...).
3. (radio jargon, noun) A two-way amateur radio contact.

QSO (plural QSOs)

1. Initialism of quasi-stellar object. (a quasar)
2. (dated) A radio-quiet quasar.

• RQQ
• RIQ
• RLQ
• YSO
• SSO
• PSO

QSO (third-person singular simple present QSOs, present participle QSOing, simple past and past participle QSOed)

1. (transitive, intransitive, radio slang) To communicate (with) by means of amateur radio.
   • 1993, CQ: The Radio Amateurs' Journal, volume 49, numbers 7-12, page 66:

     The basic award is issued when 500 countries have been successfully QSOed on the three bands.

• OQs, QoS