[Laser] Air Transmission Properties

[n9jim-6]

and HiTran.. available on line somewhere... cd is free.

someother stuff here:
http://www.qsl.net/wb9ajz/laser/laser-prop.html

n9jim/6


J. Forster wrote:

>There were programs calles NASTRAN and LOWTRAN  years ago, but  don't know about
>their recent history.
>-John
>
>David D. Rea wrote:
>
>  
>
>>Good morning all,
>>
>>I've been working on a point-to-point laser system for mountaintop DX
>>class work for about a year now, and as part of an independent study for
>>school I need to model the system. I need to characterize air as an
>>optical transmission medium - I'd like to find some equations that
>>relate wavelength, dewpoint and distance to absolute optical
>>attenuation. Additionally, I need to create a noise characterization
>>based on levels of ambient light measured at the detector, so that I can
>>come up with an overall equation for SNR.
>>
>>Can anyone suggest some reference materials for obtaining these
>>relations?
>>
>>Thanks and 73
>>Dave KB2YQE
>>
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>>    
>>
>
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