#1, NDB approaches do NOT have a Decision Height (DH.) Only precision approaches have DHs NDB approaches have Minimum Descent Altitudes (MDA). Operationally, they are very different.
#2. Decision Heights and Minimum Descent Altitudes are expressed in feet, not meters. I have flown instrument approaches to both Borispol (Kiev) and 34R at Petropavlovsk. Even in these old USSR countries, the DH and MDA altitudes are expressed in feet, not meters.
(See http://www.airalandalus.org/vueltas/negocios/cartas/UHPP.pdf) for an example.
Just one more example that this is all Tin Foil Hat BS.
I am sooooo glad that you pointed out that a NDB does not have a DH.
Here is some food for thought DF, next time you come on these threads pointing out that the approach was a non-precision, I’ll just point to the link and your post.
The ATC called out a 50 meter DH.
Again you ain’t no pilot. A DF yes but but no pilot.