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Capturing 30Hz

Very light wind today so I tried recording the aerial mast in Whitireia Park aka Titahi Bay Transmitter

I could tell on headphones (and the meters) that there was a deep undulating rumble, but it is interesting to see in RX that it is centred around 30Hz….

I’ll revisit when there is a decent wind blowing – Tuesdays forecast is for 12m/s (today was 2-4m/s)
It will be interesting to see what frequency it vibrates at then…

I also captured some lovely impacts, gently hitting the cable with a rubber mallet…
Really strange beating in the decay!

Scary sign! Must get one for my studio…