Offline Tool
10-Codes vs Prowords
When to use prowords on amateur nets — and why 10-codes are discouraged.
On amateur nets, use prowords
ARRL and emcomm guidance: plain language and standard prowords — not police 10-codes.
| Instead of… | Use… |
|---|---|
| 10-4 | Copy or Affirmative |
| 10-20 (location) | Give your location in plain text |
| 10-9 (repeat) | Say again |
| 10-7 (out of service) | Clear or signing off with call |
| 10-8 (in service) | Ready or Available |
| 10-1 (unreadable) | Unreadable — say again |
Standard prowords
See full list on Net Control Ref. Key ones: Break, Clear, Copy, Stand by, All stations.