In the past almost all studies on the anisotropy of the transport properties in 1-2-3 materials were performed on single crystals. This study is focused particularly on the anisotropy of the specific resistivity p as measured on almost single domain thin films of PrBa2Cu3-xGaxO7-y. Gallium doped PrBa2Cu3O7-y was deposited on (305) SrTiO3 to obtain (105) oriented, almost single domain thin films . The films are deposited by rf magnetron sputtering in a one-step process, at low deposition rate. A relatively simple route for the preparation of single-phase gallium doped PrBa2Cu3O7-y target material by a citrate synthesis and pyrolysis  is presented.