Thanks. I have no problem unpacking the download. The problem is getting started for authenticity. The command does not work, though someone stated that the 1st gpg is not correct on the site (link provided), that it is missing "Ox" at the end of it. I will try it now.
For the 2nd gpg command, "gpg --verify Armbian_5.18_Armada_Debian_jessie_3.10.94.img.asc", am I suppose to use this exactly as written or insert my debian name?