The Hamburg radio collective LIGNA conducted a radio art workshop and action in Novi Sad. This workshop, held on 17 December at the Centre for New Media kuda.org, set out to practically investigate the concept of radio activism in the streets of Novi Sad. The results of the workshop were brought together through a site specific collective action on 18 December on the streets of Novi Sad. Although the action was intended to be an ad-hoc and flexible means of artistic intervention in the public sphere, the action ended up being more confrontational experience than had been anticipated.