Envoi du message sonore ŕ la radio choisie et établissement du plan media (jours de diffusion, nombre de spots par jour, horaires de diffusion) et mise ŕ l'antenne.
| Exemple de campagne et plan media : |
RADIO | | L | M | M | J | V | S | D | | L | M | M | V | S | D | ... |
| 31 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | ... |
| ... | | | | | | | | | | | | | | |
| 07H00/07H30 | | | 30' | 30' | 30' | | | | 30' | 30' | | | 30' | |
| 07H30/08H00 | | | | | | 30' | | | | 30' | | | 30' | |
| 07H00/07H30 | | | | | 30' | | | | | 30' | | 30' | | |
| 07H30/08H00 | | | | | 30' | | | | | | | 30' | | |
| 07H00/07H30 | | | | | | 30' | | | | | | 30' | | |
| ... | | | | | | | | | | | | | | |
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