On Tue, 3 Jul 2018, Stephen Pereira via cctech wrote:
I believe that Mike Douglas has a utility program that you can get into a Northstar Horizon, and then it can receive a .DSK image sent from the terminal and it will write the disk for you in the Horizon. It’s called PCtoFlop and I think he has it in his archive here: http://deramp.com/downloads/north_star/ <http://deramp.com/downloads/north_star/> Good luck!
You "get it into a NorthStar", by already booting the NorthStar to CP/M, and using PIP.
It looks like an excellent way to handle more images, including N*-DOS, AFTER you have CP/M working.