Radio Contacts (QSOs) – General Conduct Guidelines
Understanding the QSO: Station Identification, Call Order, and Operating Ethics
A QSO is a two-way (or multi-way) radio contact between radio amateurs. It can be initiated by calling CQ, answering another station’s CQ, or calling a operator who has just completed a contact.
1. Order of Callsigns During Transmission
When addressing another station, strictly follow the established standard: Always send the other station’s callsign first, followed by your own.
Correct Format:
"LZ1ZZZ this is LZ2ZZZ" (where LZ1ZZZ is the target station and LZ2ZZZ is your callsign).2. Required Frequency of Station Identification
Regulatory authorities and monitoring services in most jurisdictions require station identification at the beginning and end of each transmission, and at least once every 5 minutes during continuous contacts. A quick exchange of brief remarks is regarded as a single continuous transmission.
| Operating Context | Recommended Practice |
|---|---|
| Routine Exchanges | Identify at least every 5 minutes and when handing over the transmission. |
| Contests | While regulations may allow longer intervals, best operating practice is to identify during every single QSO. |
3. Key Habits for Professional On-Air Operating
- The One-Second Pause: When control is handed to you, pause for approximately one second before keying your transmitter. This allows break-ins or emergency traffic to step in.
- Keep Transmissions Brief: Favor concise exchanges over lengthy monologues to maintain active communication and allow easy back-and-forth dialogue.
