What is this in Mexico?
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Hi. Can anyone tell me what these are over Mexico? I’ve been watching them for about 3 months now as I’m due to re-locate there.
I read on a blog that it can be interference due to sunrise or sunset but they are there all day/night on 12hr playback & have been consistent for the 3 months I have been looking??
Thanks in advance.
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@Lansy
Hi,
this is due to interferences that are not filtered by the provider. It can be some strong WiFi sources, or interferences by building / mountains.https://community.windy.com/topic/8098/not-real-storm-bands?_=1704224514274
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@idefix37 Hey! Thanks so much for your reply with link to the 2019 post & resources. Just what I needed to point me in the right direction to research further :-)
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@Lansy said in What is this in Mexico?:
Hi. Can anyone tell me what these are over Mexico? I’ve been watching them for about 3 months now as I’m due to relocate there.
I read on a blog that it can be interference due to sunrise or sunset but they are there all day/night on 12-hour playback & have been consistent for the 3 months I have been looking.It is not possible for me to determine what specific objects or phenomena you are referring to without more information. If you are observing something unusual or unfamiliar in the skies over Mexico, it may be beneficial to consult with local experts, such as astronomers or meteorologists, who can provide more specific information based on their knowledge and expertise.
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@davinamartin said in What is this in Mexico?:
It is not possible for me to determine what specific objects or phenomena you are referring to without more information. If you are observing something unusual or unfamiliar in the skies over Mexico, it may be beneficial to consult with local experts, such as astronomers or meteorologists, who can provide more specific information based on their knowledge and expertise.
Did you read the previous posts answering the question about these Radar anomalies ? No need to ask to astronomers ! This phenomena is radar waves interferences due to strong WiFi sources which are not correctly filtered.
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lol. it's not wifi. Now I realize why I shouldn't ask this group questions. It's obviously the center of the radar, or in some cases the radar is located at the end of the line. It's either standing reflecting radar waves, if it is actually real (as in the air) or it's post production overlap (with the other radars near by*) issues. I think you have photos of both. -end
- The earth is round and the radar projection after processing is flat and has to be made to look flat. Even more, the radar is more like a semi-circle. Think of it like the line on fabric. If the garment were made of cloth that was a 3D 1/2 ball, flattened then those circles were put on a flattish (earth) table to sew. There'd be anomalies, lines, stretched areas like you photos. :) Good question. Bad other answers lol
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@jame5
Hey Mate, you better read these scientific communications before inventing crazy theories:https://rid.unrn.edu.ar/bitstream/20.500.12049/8295/1/RPIC2021_paper_149(2).pdf
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@idefix37 How far does wifi go? A few hundred feet? So there's a wifi (1/3 power from the original signal) harmonic causing this? And it's located next to the radar for weeks that they can't find and eliminate?
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@jame5
Have you read the papers I mentioned here above ?
“ … When in the scanning process, the radar points in the direction where there is a Wi-Fi transceiver operating in the same band, it is very likely that this signal will be received by the radar. This signal will appear as additive interference …”Here is detailed report on operations to find sources of interference and neutralize them :
https://cept.org/Documents/fm-22/42471/fm22-18-info01_interference-meteorological-radar-netherlands -
@idefix37 Yes, I read them. And having published articles myself and having multiple STEM degrees and the basic amateur radio license, let's assume you are correct, for a brief moment. Here's a picture of a map of all the wifi spots in the NY area, not including all the cell phones at that moment, and your trying to tell me that there's interference between wifi and radar? How do all the multiple radars at the major airports work then? They are all much more powerful and on similar frequencies to both other radar and wifi? Oh, and that somehow radar, much more powerful, doesn't magical interfere with wifi??
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@jame5
The problem only appears when the frequency used by WiFi equipment is infringing on radar bandwidth. In some countries there is probably a better control than in others.
Anyway, I'm not going to try to convince anyone -
@jame5
Additional interesting 2 articles answering your question
https://en.m.wikipedia.org/wiki/Dynamic_frequency_selection
https://ams.confex.com/ams/pdfpapers/97361.pdfSo the problem occurs when DFS of RLAN-WiFi equipment is not correctly operating.
Yes, Radar can interfere with Wi-Fi
https://blog.iptel.com.au/wifi-and-the-problem-with-radar#:~:text=RADAR can interfere with Wi,removing a source of interference. -
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