The Pegasus High Altitude Balloon project is a UK based amateur student run project that involves launching payloads to “Near Space” (between an altitude of 60,000ft (20km) and 325,000ft (99km)). This is achieved through the use of helium weather balloons which are designed to burst at a certain height and then the payload returns to earth via parachute.
At present we have launched seven missions:
After the loss of Pegasus V the focus has shifted to Firefly using Telit GM862-GPS modules.
Due to restrictions in the HAM licence in the UK the typical frequencies can not be used, instead we use GSM and also licence exempt frequencies mainly 434mhz at 10mW. The GSM doesn't work above about 3000ft however is extremely reliable once the payload has landed while the radio allows us to track the payload throughout the flight.
Modular lightweight payload with simple GM862-GPS backup system (sms and morse radio) - allows for experimental payloads with the fallback tracker system. Once the basic system is complete and tested potential experiments include 2 way radio communications, video streaming, sunrise launches, etc.