[mzerod]

This is mild pedantry from me, sorry.

Fortunately, the 10m band these days has a reach of up to 11000km due to the solar activity. You are quite right that during LOS conditions it’s limited to the elevation of the antenna.

Its relatively small antenna needed (5m dipole) and can be used to access some distances, just not ones that might be in the same country as origin because of the skip dead zone from the ionospheric refraction angle. Which depending how it might be used, could be useful.

The general rule of thumb is to check the MUF Rating at the time of day collected from ionosondes such as that on https://prop.kc2g.com/