Bob Eager expressed precisely :
Then (read original post) I measured the
bearing corresponding to the run of the (straight) road on which I live.

Ah, I see now.

The method does though rely heavily on the road being straight for long
enough and your house being aligned to that road. Living on a rather
short road with several bends in it and in a house not aligned with the
road, I was struggling to grasp your method.

--

Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk