I did my IR from Baginton last year.
DTY is a VOR 5 NM sse 165' from Daventry town Centre, the Rugby Masts (4) are about 10+NM north.
If I remember rightly it is on one of the many hills in that area away from any built up areas. You can clearly see it from the air, when in the back with a window.
Say hello to it for me, next time you are overhead.
FB
