[Laser] Laser Cloud Bounce with WOLF-GUI program

Zack Widup w9sz at prairienet.org
Tue Aug 22 12:26:41 EDT 2006


I had considered trying a laser QSO in the 10+ GHz contest last weekend, 
as I was on the southern shores of Lake Michigan. I decided not to take 
the laser gear with me.  As it turns out, I don't think anyone else had 
laser equipment with them and the fog/haze was so bad I couldn't even see 
downtown Chicago like I could last year at the same sites.

10 GHz wasn't so great either. No QSO's with the Michigan side at all. :-(

73, Zack W9SZ


On Tue, 22 Aug 2006, Kerry Banke wrote:

> Yves - Congratulations! I know how much effort it is to do such a 
> thing. We tried a 20 mile LOS contact in bright daylight last weekend 
> but were not successful.  The haze was so bad we could not see the 
> other mountains at all   for pointing. I thought we might make it 
> since we have so much power available but it seems in daylight 
> we  just lose the  margin which makes it easy at night to  find the 
> signal. A quick test here seams to indicate the noise floor rises by 
> at least 30 dB in daylight while the maximum signal stays the same. I 
> guess we will have to go back to night time operations until we have 
> good matching filters. I just ordered another pair of filters from 
> the same person you suggested on Ebay. Unfortunately the filters are 
> still only 30 nm HPBW so we may drift out of band with 
> temperature.  Do you have any feel for how much the noise floor rises 
> in your system with daylight?  Keep up the great work and thanks for 
> sharing with us.
>   -Kerry N6IZW - 



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