on-air

US /ˌɑːnˈer/
UK /ˌɑːnˈer/
"on-air" picture
1.

being broadcast on radio or television

:
•
The show went on-air at 7 PM.
•
The reporter was live on-air from the scene.
:
livebroadcastingon the airtelecastingradiocasting
:
airbe on airairingair conditionerair pollutionair conditioningair force