hello jay.
i dont know of anywhere that does explain the data, all i can tell you is what the graphs are,
the colored boxes at the lower right sellect the different curves to be displayed,
red horizontal line is the vswr curve from 26 to 28mhz
purple horizontal line is Z curve 26 to 28mhz
green horizontal line is reactance curve 26 to 28mhz
the boxes on the left sellect the 2 user moveable vertical markers and the green automatic min vswr point marker,
i can move the red and blue verticals to anywhere on the graphs then read the information at that point on the graph in the two lines of data, red marker upper line blue marker lower line,
the bottom min vswr data line corresponds to the green marker that automatically finds vswr min and displays the relavent data for that point on the graphs,
the red Xs+j as far as i know is reading inductive reactance in ohms
the Xl to uH is reading the equivalent inductance in uH that is = to the Xs+j at the indicated frequencies,
when the load is capacitively reactive the red Xs and Xl turn blue and read
Xs-j
Xc to pf
which i take to be capacitive reactance in ohms and the capacitance in picofarrads that is = to that reactance at the indicated frequencies,
heres a link to the instructions online, i will have a read and see if i can understand it.
http://f1.grp.yahoofs.com/v1/UBzzRX9PVxVNrXRaPiu_IIeotIYUiZR2GhGVzCHPTlylQPzSYZfBNVsncXw6OJSsceYHOpnqRCrplLON8fTK0hP9YIa2N-4XiPZ175mEra0DrQ/manual_minivna.pdf