The second day of broadcasting for Double J has been marred by technical problems with the ABC's new digital station temporarily dropping off the air on Thursday morning.

Just a day after the launch of Triple J's digital offshoot, transmission dropped out before midday (AEST) for both Double J and Triple J.

Double J briefly went off the air after being officially launched by host Myf Warhurst yesterday. Credit:Wayne Taylor

Double J, billed as a new station for music lovers slightly older than Triple J's core 18-24 demographic, launched on Wednesday playing Nick Cave and the Bad Seeds' Get Ready for Love.

The drop-out happened during the triple J mornings program.