On Saturday, March 29, at around 10:00 GMT Chris Stubbs M6EDF will be launching a balloon CHEAPO carrying a payload transmitting 50 bps 7n2 RTTY on 434.300 MHz USB.
Chris gave a well received presentation on high altitude balloons at a recent Chelmsford Amateur Radio Society (CARS) Skills Workshop. His latest launch will take place from Danbury Common at around 10 AM on Saturday, March 29.
The forecast looks like the balloon will take a scenic path along the east coast of England before being lost forever over Scotland, see http://ready.arl.noaa.gov/hypubout/184444_trj001.gif
The balloon could have a radio range of 300-500 km depending on altitude.
There should be a number of other balloons transmitting between 434.050 and 434.575 MHz also launching on Saturday.
You can see online real time tracks and frequencies of all the balloons at
Listen to the balloons online from anywhere in the world with the SUWS 434 MHz WebSDR (select USB)
Beginners Guide to Tracking using dl-fldigi
Free iPhone balloon tracker HABHub can be downloaded from iTunes store https://itunes.apple.com/nl/app/habhub/id737310999?l=en&mt=8
Check the #highaltitude IRC channel for chat about launches. A web client is available at
Chris Stubbs M6EDF http://chris-stubbs.co.uk/
The CARS amateur radio skills workshops are held on the 3rd Monday of each month at the Danbury Village Hall, CM3 4NQ. The Skills Workshops are open to all, and there’s no charge for attending. For details, and to sign up for email updates, see
To find out more about amateur radio and the Chelmsford training courses speak to Clive G1EUC on
Email: training2014 at g0mwt.org.uk
What is Amateur Radio ? http://www.essexham.co.uk/what-is-amateur-radio