AmateurSatellite

UK

• Goonhilly https://www.goonhilly.org/
• Oscar100 SDR https://eshail.batc.org.uk/nb/
• VHF-goonhilly SDR https://vhf-goonhilly.batc.org.uk/

Online

• http://amsat.org.ar/pass.htm

SatSignal.EU

• https://www.satsignal.eu/

Helical Antenna Info

• Building a 2.4 GHz WiFi helical antenna https://www.youtube.com/watch?v=xp6B3nVEFCI