Am Mon, 10 Feb 2020 21:28:18 +0100 schrieb Csahok Zoltan <ha5...@freemail.hu>:
> While working on improving the handling of WWV messages > I did some digital archeology and found that the propagation > display (Ctrl-P) is a straight port of MICROMUF.PAS, a MUF/LUF tool > from the 80s. It was originally written in Basic then translated > to Pascal. Here one can still find both: > Xs://archives.scovetta.com/pub/simtelnet/msdos/hamradio/ > (replace X with http. I'm unable to post mails with links...) > > I suggest to include the original credits to our source. Good idea. As you have the details can you please provide a proposal for it. > > The Pascal version compiles on a 3.7 MHz Z-80 board in 8 seconds > and drawing the chart takes ~45 seconds. Not that what you'd want > to do during a contest. Those were different days... > I myself started with an 2MHZ Z-80 homemade system with 2 kB ROM and 2kB RAM doing assembly by hand. What times.... 73, de Tom > For those interested in seeing CP/M and Turbo Pascal 3.01A in action > here is a 2 min screen recording: > X://ha5cqz.info.tm/Screencast_micromuf.mp4 > At the end I swithed to TLF's Ctrl-P screen with the same settings > for comparison. > > This page gives a good review of propagation prediction programs > X://www.astrosurf.com/luxorion/qsl-review-propagation-software-dos.htm > > > 73, > Zoli > > -- "Do what is needful!" Ursula LeGuin: Earthsea --
