"JERD" wrote in
:

Is there an optimum angle for antenna mast guy wires? I will be using
three guy wires and am a bit limited in real estate.

As you increase the elevation of guy wires, under lateral forces on the
structure from wind, you:
- increase the tension in the guy wires;
- increase the downwards (buckling) force on the mast;
- increase the upwards (pull out) force on the guy anchors.

Owen