AC6LA has come up with a really nice tool that
will show you graphically the effects of your local terrain on
antenna performance. For the details, see:
https://forums.qrz.com/index.php?threads/seeing-the-effects-of-local-terrain-on-radiation-patterns.733041/
This is a great tool to predict what your coverage will be for
various takeoff angles. It also confirms that the 3000' mountain
due west of me is going to make it really hard to work into VK and
ZL for me.
73...
Randy, W8FN