Adding on to this a digital mode that's been getting a lot of attention lately: FT8Call. It's a modification of the FT8 mode created in response to the low solar activity we've been seeing lately. It's a text mode that's meant to be picked up at very low SNR and is of interest to Streloks as a way to get information across long distances under sub-optimal circumstances, solar or otherwise.
Also if any /k/ommandos have feedback or suggestions on >>607038 I'd be interested– what you'd like me to expand on, what you'd like me to write new sections on, general topics you like, etc. Gonna start a section on amateur radar and compile a list of further reading and useful files. If nobody has any suggestions or much interest that'll be 1.0 and I'll leave it at that.