code SSR
| discret
| code SSR abbr. | |
| avia. Canada | SSR code; code |
| discret abbr. | |
| stat. scient. | discontinuous |
| |||
| SSR code; code | |||
| beacon code | |||
|
code SSR : 9 phrases in 3 subjects |
| Aviation | 2 |
| Communications | 3 |
| Transport | 4 |