So I see NASA has issued a geomagnetic storm watch for a possible G2-level storm on the 11th. I’m at about 53 degrees north geomagnetic latitude.

Is this something I need to care about equipment-wise? Should I disconnect my IC-7300 from the antenna to play it safe? And if I should disconnect it how do I determine when it is safe to hook it back up (and see what DX the storm may have opened up as it fades out)?

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    $\begingroup$ From memory: storms create/allow aurora, induce sub-1 Hz currents in 1000+ km wires and pipelines. Possibly small/large impact on HF propagation, which might be interesting to observe $\endgroup$
    – tomnexus
    Commented Oct 11, 2021 at 6:40
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    $\begingroup$ Geomagnetic storms are dangerous to satellites and power lines. A typical antenna isn't large enough to collect enough power to be dangerous from this type of event. $\endgroup$
    – user10489
    Commented Oct 12, 2021 at 11:22

1 Answer 1


Nothing. A G2 storm is a common event; according to NOAA data it happens an average of 600 times per 11-year sunspot cycle. It won't hurt your radio, but it might make HF communication a little more difficult. In fact, no category of storm is expected to hurt your radio in particular, although G4 and G5 storms can cause major radio blackouts, not to mention the other kind of blackout.


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