Effects of solar radio burst found in radiosonde telemetry data

[hb9tmc]

Yesterdays X9 solar flare was accompanied by a short but realtively intense UHF radio burst which I was capturing in real time:

It led to a temporary decrease in SNR in the reception of radiosondes at around 12:18 UTC, which was apparent on some receivers:

[Mark Jessop]

Wow, that's amazing to see these kinds of effects right up at UHF!

Do you mind if I share this elsewhere?

73

Mark VK5QI

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[hb9tmc]

Sure, feel free to share!

I have more waterfall diagrams from the rest of the day. There was residual noise throughout the day, albeit not as strong as during the flare. Just a few dB above the normal noise floor. It vanished in the evening as the sun disappeared behind the mountains.

73
Stefan

HB9TMC

[Mark Jessop]

You can also clearly see it on data from the e-callisto.org network, e.g. this observation from a station in Austria:

You can access data from other stations here: http://212.128.70.189/dashboard/index.php

73

Mark VK5QI

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[Bruce Crandall]

I was tracking a Dulles HAB at the time - here's a snap of the track file showing a dropout at 12:17:26Z.  

KN4GDX

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73