Radio amateur Philip Heron MI0VIM reports on a Raspberry Pi balloon which will be launched for the eclipse and should be receivable across the British Isles.
All being well there will be a launch from Cookstown, N.Ireland on Friday, March 20 at about 0700 UT.
The plan is to have it rise high enough before the time of maximum solar eclipse, and maybe image the lunar shadow on the horizon. This will have a slow ascent rate and should hopefully float at about 36km, on a path which takes it south towards Dublin, before turning east to Wales and on towards Germany.
Callsign: EAGLE
Frequency: 434.250 MHz USB
Mode: RTTY 300 baud 8N2
The payload consists of a Raspberry Pi A+, camera and a Pi In The Sky module. It will be sending SSDV images throughout the flight.
The 434 MHz signals transmitted by High Altitude Balloons can have a range of up to 800 km. The path of the balloons can be tracked in real-time at http://spacenear.us/tracker/
Useful links for tracking, receiving and decoding the telemetry from 434 MHz balloons can be found at
https://amsat-uk.org/beginners/balloons/
Listen for 434 MHz balloon signals online using the SUWS WebSDR, further details at
https://amsat-uk.org/2014/08/15/suws-websdr-moves-to-new-site/
434 MHz balloon launch at BBC Stargazing event
https://amsat-uk.org/2015/03/16/434-mhz-balloon-launch-at-bbc-stargazing-event/
This is what happened to the solar panel currents, they dropped to almost zero.
AMSAT-UK 
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