Definition of a good noise-free site for BlitzOrtung probe
#2
You'll probably have diminished reception in that direction. In the context of things, probably not an issue, since yours is one of many. 4G phone emiiter - what us Yanks call a cell site - will have no effect. Blitzortung is looking at under 1 Mhz. Cell site is ~1-2 Ghz - microwave. No effect whatever.

So some questions. You talked of "probe". That's e-field. What of the h-field? What are you going to use? ferrite, or loops? Is the Receiver going to be in this old building, or someplace further away? Remember that you should keep some distance between whatever you are using for power supplies - switching type - for the Blitzortung, and whatever network gear you have for it. One thing that really helps sensitivity, and keeps the noise down is to run the coax for the probe past the electrical ground for the building and use a grounding block at that point as though it's a satellite antenna -I assume those type of practices for protection are global. Here's a link to a diagram as it applies in the US to antennas. http://www.mikeholt.com/download.php?fil...014NEC.pdf

Of interest is image 810-3 and 810-4. Make believe that the antenna in that is the probe, and the "TV" is the Blitzortung receiver. The concept is the same. It picks the noise from equipment inside the building off the coax.
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RE: Definition of a good noise-free site for BlitzOrtung probe - by BobW - 2017-05-13, 02:14

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