27-11-2019, 01:57 PM
I would refer you to Ian Moorcraft's excellent treatise on the subject here:
http://www.ba7c.org/technicalArticles/st...hment.html
This tells you all you need to know on this subject.
http://www.ba7c.org/technicalArticles/st...hment.html
This tells you all you need to know on this subject.