Simulationen:
https://dr2w.de/dx-propagation/ (external link)
https://www.voacap.com/hf/ (external link)

Funkwetterbericht:
https://funkamateure-dresden-ov-s06.de/aktueller-funkwetterbericht/ (external link)

Solar indices dashboard

F2-MUF for selected skip distance  (Source: PROPquest.co.uk)

KC2G near-realtime MUF (and more (Source: kc2g.com)

HamDXMap (external link)

Space Weather  (Source: SolarHam.net)

VLF-Plotter (Source: skyandsolar.com)

Real-time auroral and solar activity (Source: spaceweatherlive.com)

Current Kp-index (Source: theusner.eu)

Real Time Solar Wind Data (Source: NOAA)