Comment on The Ultimate Guide to Affordable NVIS Comms (How to Build a Regional Off-Grid Radio Box)
poVoq@slrpnk.net 5 days ago
Linking this with some sound modem to transmit text data, ideally with some automatic repetition to remove errors, will probably be much nicer to communicate with. But cool concept overall.
perestroika@slrpnk.net 5 days ago
What makes me worry is the size of the “reflector”. I wonder what symbol rate it is possible to get if the “reflector” is literally everywhere above you - the time delay between start of reflection and end of reflection might be considerable.
I found a resource with practical advise about using NVIS, including using meteorological data (ionograms) to determine the best frequency, antenna diagrams and such.
ProdigalFrog@slrpnk.net 3 days ago
Excellent info, thanks for digging into that and sharing! :)