Spectral index map over the BT galaxies in Abell 1314. The map is made with the LOFAR map at 144 MHz and the GMRT map at 610 MHz. Both maps are imaged with the same setting and convolved to the same beam size. We indicated no RA, Dec offset between the two maps. The radio head-tail from IC 711 shows steepening in the length of the tail with a portion of flattening in the mid-section. A red arrow roughly marks where the flattening of the spectral index occurs.