The Ultimate Guide to Affordable NVIS Comms (How to Build a Regional Off-Grid Radio Box)

https://www.youtube.com/watch?v=ZZxR-qtGH7c

I build a $200 portable HF radio box and test whether it can really communicate 100+ miles off-grid using a technique called NVIS. This video walks from first principles to real field tests, showing how normal people can stay connected when infrastructure fails...

#NVIS #Comms #Regional #Inexpensive #CommunityDefense