As I couldn't find WHERE to post it, I tried here. Please, moderators move this post at your liking.
https://www.milsurps.com/images/impo...signals1-1.jpg
https://www.milsurps.com/images/impo...signals2-1.jpg
https://www.milsurps.com/images/impo...signals3-1.jpg
https://www.milsurps.com/images/impo...signals4-1.jpg
