[HamWAN PSDR] Amazon Fade

Bart Kus me at bartk.us
Thu Oct 1 15:48:27 PDT 2015


We've discovered a new mode of attenuation we're calling Amazon Fade.  
It's clearly visible in this signal strength graph:

Amazon Fade

On Sept 28th, Amazon finished constructing a piece of steel member that 
is right in the middle of our signal between the Westin building and the 
Queen Anne site.

The chunk of steel is towards the right of the building being 
constructed here, on the far side.  Our Queen Anne site is directly 
behind it on the horizon.

This webcam was setup specifically to monitor for the impact of this 
event, and I'm pleased to see the data come in.  One other interesting 
this from this experiment is that the signal didn't fade at all as the 
floors were being built.  Our signal shot clear in between them.  It was 
only when that vertical riser was put in place that we measured an impact.

I'll keep everyone updated on any future signal changes in our 
continuing study of Amazon Fade.  :)


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