Short and long masts

In tagging of towers I can see there is a difference between man_made=tower and man_made= communication_tower… one is for short towers while the other for long ones >100m. Do we have the same for masts. Some television/radio masts are very tall with multiple guy wires.

Also, can a mast consist of lattice steel, or does that qualify it as a tower? On another note, Ive realized that antennas are not rendered on carto. Is this always the case?