Posted on Leave a comment

2019 Black Friday / Cyber Monday sale

This sale will start on Nov 29, 2019 at 12:00 am MST and run through midnight on Dec 2, 2019.

We have for you this year:

All percentages have been rounded to 4 decimal places for your bargain-hunting convenience!

Also note that the HamStudy.org mobile app will be on sale for $1.99 (50% off) for the same duration! All sales at signalstuff.com support hamstudy.org development and related projects.