How do you know the Schumann Resonance preset includes the geomagnetic signal?

If you are using Plasma, contact, PEMF there will be a magnetic component to the Schumann Resonator preset.
If you use Scalar, Remote or laser accessories (Wrist or Twin laser) there won't be a magnetic component to the Schumann Resonator preset.

Spooky2 Remote before v1.0 and V1.1 use two planar (printed circuit track) coils whereby the magnetic field of each coil cancel each other out. Therefore no magnetic field is propagated.

Spooky2 Remote before v2.0 doesn't have any planar (printed circuit track) coils and relies on the capacitive effect for signal propagation.

Spooky2 Remotes v1.0, v1.1 & v2.0 do have permanent neodymium magnet fitted, however, the range of this magnetic field is local to the Remote unit.

For more details, please check the link:
https://www.spooky2.com/forums/viewtopic.php?f=12&t=11722