TITLE: GCN CIRCULAR NUMBER: 14751 SUBJECT: GRB 130603B: 5.8 GHz VLA detection DATE: 13/06/04 06:57:59 GMT FROM: Wen-fai Fong at CFA W. Fong, B. A. Zauderer and E. Berger (Harvard) report: "We observed the position of the short-duration GRB 130630B (Melandri et al., GCN 14735) with the Karl G. Jansky Very Large Array (VLA) beginning on 2013 June 03.98 UT (7.6 hr post-burst) at a mean frequency of 5.8 GHz. In 1 hour of observations, we detect a ~0.2 mJy radio source in coincidence with the reported optical afterglow (Levan et al., GCN 14742; de Ugarte Postigo et al., GCN 14743; Foley et al., GCN 14745; Cucchiara et al., GCN 14748). We note that this is only the fourth detection of radio emission from a short GRB, of which one case (GRB 120804A; Berger et al., 2013, ApJ, 765, 121) was due to host galaxy emission. Further observations are planned. We thank the VLA staff for quickly executing these observations."