The H1722+119 SED. Blue dots represents data contemporaneous to MAGIC observations. The MAGIC measured data are shown by empty blue squares, while full blue squares indicate the de-absorbed points using the EBL model from Franceschini et al. (2008). Fermi-LAT data are shown by dots, while arrows represent Fermi-LAT ULs. The Swift data indicated by blue dots, were taken on 2013 May 20 (MJD 56432). The KVA R-band point represented by a blue dot was taken on the same night. The OVRO measurement represented by a blue dot was taken on 2013 May 22 (MJD 56434). Red triangles show the Swift data from 2008 May 31 (MJD 54617). The green solid line in the 10¹⁴–10¹⁵ Hz range indicates data from Landoni et al. (2014), but they were not considered for the fit. Archival data from 2MASS and WISE are shown by empty grey circles, and were not considered for the fit. The blue long-dashed line indicates fits of the helical jet model to the 2013 data, while the fit to the 2008 data is indicated by the red dash–dotted line. Both models represent the intrinsic VHE emission. Only blue and red points were considered for modelling.