WSPR balloons

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Sun, 2017/04/09 - 09:53
#1
G8BDZ
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Joined: 2016/11/25 - 11:51
WSPR balloons

I have started to take a interest in tracking the WSPR equipped balloons. I presume they are all on 20 meters. Does anyone have a list of the active callsigns?

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