Rows beginning with an exclamation mark contains only comments. The row beginning with the hash symbol indicates that in this case frequencies are in megahertz (MHZ), S-parameters are listed (S), magnitudes are in dB log magnitude (DB) and the system impedance is 50 Ohm (R 50). There are 9 columns of data. Column 1 is the test frequency in megahertz in this case. Columns 2, 4, 6 and 8 are the magnitudes of S_{11}\,, S_{21}\,, S_{12}\, and S_{22}\, respectively in dB. Columns 3, 5, 7 and 9 are the angles of S_{11}\,, S_{21}\,, S_{12}\, and S_{22}\, respectively in degrees.
