We present images of NRAO530 observed with the EVN ( VLBI ) at 5 GHz , the MERLIN at 1 .6 and 5 GHz , and the VLA at 5 and 8 GHz showing the complex morphology on scales from pc to kpc .
The VLBI image shows a core-jet structure indicating a somehow oscillation trajectory on a scale of 30 mas , north to the strongest compact component ( core ) .
A core-jet structure extended to several hundreds mas at about P.A . -50 \degr and a distant component located 11 arcsec west to the core are detected in both the MERLIN and the VLA observations .
An arched structure of significant emission between the core and the distant component is also revealed in both the MERLIN image at 1.6 cm and the VLA images at 8.4 and 5 GHz .
The core component shows a flat spectrum with \alpha \sim - 0.02 ( S \propto \nu ^ { - \alpha } ) while \alpha \sim 0.8 for the distant component .
The steep spectrum of the distant component and the detection of the arched emission suggests that the western distant component is a lobe or a hot-spot powered by the nucleus of NRAO530 .
A patch of diffuse emission , 12 arcsec nearly east ( P.A . 70 \degr ) to the core component , is also observed with the VLA at 5 GHz , suggesting a presence of a counter lobe in the source .