The PQA300 currently only supports SDI 525/625 digital formats and PAL/NTSC analog formats. Tektronix does offer another tool; the MTS4EA which is capable of performing PSNR measurements in just about any resolution and frame rate but this is a software only tool and has no analog inputs. Also, the fidelity comparison is made against two files, one of which must be a digital, uncompressed YUV file and the other can be either a similar YUV file or an MPEG compressed file.