2018-03-24 Trying FT8 on the 2 meter band 2 years ago
The different radio bands also have quite different properties. The HF bands below 30 MHz have ionospheric refraction which lets the signal return to earth in far away places. The VHF bands (30-300 MHz) are usually only line of sight, signals usually will not get beyond the horizon. Recently I saw mention of the FT8 mode on the 2 meter band. Specifically here: Essex 2M Activity Day Update - Essex Ham and VHF FT8 - M1AVV. This inspired me to give it a try myself. It took a bit of searching to find the right frequency for FT8 on 2 meter. I found out it's 144.178 MHz so I started trying there and soon made my first contacts with Dutch amateurs at reasonable distances. But from time to time I saw signals from further away than was possible, for example England and France. My best guess is that aircrafts reflect the signals. I also saw doppler shift in signals which confirms aircraft reflections. After a few tries I was able to make my first contacts at nice distances in the Netherlands.