banding in darks

ZWO ASI6200MM Pro Pegasus Astro Ultimate Powerbox Power Supply Dark Frames Banding
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Nick Grundy avatar
Nick Grundy avatar
Was just wondering if someone explained this already...

I  am running darks and noticed a horizontal banding present. I run the asi6200mm through my pegasus ultimate powerbox v2. (both power and data)

I then swapped only the power to a completely separate 12v adapter  from everything else. And the bands were much much lighter. (almost gone,see below)

It's consistent across 2 sessions of darks with almost every other condition being the same. 

thoughts on the explanation? Cause?

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Gert Eriksen avatar
Gert Eriksen avatar
My guess would be 50/60 Hz hum or a higher frequency noise from the switch mode power supply.
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