descott12

Hi Ian, Thanks for the great post. After seeing it, I built my own. https://www.cloudynights.com/topic/749771-homemade-solar-scintillation-monitor-warningthis-is-pretty-geeky-stuff/ I am having a problem with it and I was hoping you could help. It seems to display a seeing value of around 11 most of the time. It responds appropriately to shade vs full sun and I keep the input voltage very close to 1.0. I have checked all the internal voltage levels and the ones that should be at 2.5 are ok. The seeing value never goes below about 10 unless I increase the input voltage but that is the denominator in the equation so that is just a result of the math on not the actual conditions. Measuring over a shingle roof vs a grassy field doesn't seem to change anything. Any thoughts? My local seeing is around 2.5. to 3 usually and that is about 1/4 of what is being reported. I noticed that the firmware has a multiplier of 4.46 which is a little suspicious but access to the orignal Seykora paper is no longer possible so I wasn't sure what the factor was for. Anyway, thanks again in advance for any advice you may have. Dave