https://ukhas.org.uk/ https://ukhas.org.uk/ has some really good information for people launching balloons in the UK (such as how to track them, along with the

https://ukhas.org.uk/ https://ukhas.org.uk/ has some really good information for people launching balloons in the UK (such as how to track them, along with the power etc. you can use). I've only tracked one once, using an old scanner and antenna, but I'd like to get a decent collinear antenna to use with an SDR.