The intro text says that the scopes have "multiples of 5 for number of amplitudes", but the very first pair have 19 and 24, with the end of the signal forming a straight line. Is that a graphical bug?
I've tried making progress despite that inconsistency, but I haven't been able to figure out even that first pair. It feels like too much info to try to decode at once.
rot13 -
Gur zbfg V'ir tbg vf gung gur tebhcvatf bs 5 nzcf unir frrzvatyl fvtavsvpnag "ovgf" ba rvgure raq naq guerr mrebf va gur zvqqyr. Znlor bar raq fvtavsvrf n ahzore naq gur bgure fvtavsvrf na bcrengbe, be bar raq fvtavsvrf n xvaq bs tebhc naq gur bgure vf vgf inyhr. Ohg V'ir gevrq n srj vagrecergngvbaf naq abguvat'f znxvat frafr gb zr.