Add explanation of what's in this directory
Source: https://satnogs.dozuki.com/Guide/Helical+Antenna+v4/11
Signed-off-by: Hugh Brown (Saint Aardvark the Carpeted) aardvark@saintaardvarkthecarpeted.com
Source: https://satnogs.dozuki.com/Guide/Helical+Antenna+v4/11
Signed-off-by: Hugh Brown (Saint Aardvark the Carpeted) aardvark@saintaardvarkthecarpeted.com