[RFI] How very interesting...

[Dave Cole]

Hi,

Just thought I would share this with the collective group, because it
seems so interesting...

I took an SDRPlay, and set it to something like 2 MHZ wide, then pointed
that at the 40 meter band, and set it loose recording in graphic form,
across a very long time frame to get an overview of my RFI environment
across time.  It is attached...  All times are GMT, and the graph starts
at around 2:30 PM local time here in Oregon.

I expected interesting results, but got something far more fascinating,
and busy than I thought.  Much structure is visible in this...  Being
able to visualize huge swaths of spectrum over time is so informative.  

I have been trying to get a tool for generating an RFI survey of an
area, and this seems to fit the bill well.

In the near future, I will be moving to AZ, and I think I will strap
this setup onto a laptop, put it in my car, and connect it to my mobile
antenna for Low Bands, to survey the area I am considering moving
into...

-- 
73's, and thanks,
Dave (NK7Z)
For software/hardware reviews see:
http://www.nk7z.net