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Lightbulb Analogic Blitzortung
Posted by: Elektrofeldmeter - 2022-02-07, 19:36 - Forum: Hardware, Software, Lightning Physics - No Replies


A new thread regarding the topic of lightning physic. I found this article in wikipedia extremly interesting and I want to try it.... Franklin bells. Below some pictures of it:




The part a) consists in a kind of antenna totally isolated from the ground. I bought a metallic sphere in order to avoid any kind of corona discharge of the structure. The sphere is connected to the Franklins bell structure, more exactly on the left bell. 

On b) we can see that the left bell is very close to the right one and in-between there is a small metallic bead (piercing material) also isolated from the ground which can oscillate freely between the two bells. A pendulum so to speak. The right bell is connected to the ground.

During keraunic activity the antenna and de facto the bell is charged, the small bead (if initially connected to the antenna bell) will also be charged with the same polarity. At some points the charge is high enough so that the electrostatic forces repulse the small bead to the ground charged bell, and vice versa... The system is ringing.

I thought that this was not really efficiently working, the electrical storm of yesterday proved me that I was wrong.


Another evidence of this principlein this video Franklin's bell.

Do not hesitate to send me feedback if you want some more information or if you have questions. 

Looking forward to it.

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Lightbulb Keraunic activity over Mainz/Frankfurt
Posted by: Elektrofeldmeter - 2022-01-26, 16:38 - Forum: Website, Maps and Applications - Replies (1)


I was looking for some hotspots in order to take pictures of lightnings (taking all possible security measure of course) and I could not find any good way of accessing to this information. 
I wrote a script in order to extract the CSV data and to stich them temporally and I reprocessed the data afterward into Mathematica. Doing so I managed to generate the attached pictures.


For those interested in local density plot. 
Below the script written in Python using the Selenium library. This script needs to be edited in order to perform your task, you need to define:

  • The location of your chromedriver
  • The download path
  • Your login on Blitzortung
  • Your password on Blitzortung
  • The start date for the data collection
  • The min/max latitude and longitude of the area of interest

import time
import datetime

from selenium import webdriver

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions
from selenium.webdriver.common.by import By

path_download     = ""
path_chromedriver = "" #were chromedriver is stored download at https://chromedr
login       = ""       #your login
pwd         = ""       #your path
start_year  = 2015     #when to start
start_month = 6        #idem
start=day   = 1        #idem
lon_min     = 49.2     #longitude min
lon_max     = 50.2     #longitude max
lat_min     = 7.8      #latitude min
lat_max     = 8.9      #latitude max

options = webdriver.ChromeOptions() ;
prefs = {"download.default_directory" : path_download}

driver = webdriver.Chrome(executable_path = path_chromedriver, chrome_options=op

wait = WebDriverWait(driver, 30);


date_start = datetime.datetime(start_year,  start_month,  start_day, 0, 0, 0)
for i in range(2000):
    date_end   = date_start+datetime.timedelta(days=2)
    if date_end > datetime.datetime.now():
    epoch_start = int(date_start.timestamp())
    epoch_end   = int(date_end.timestamp())

    http_address  = "https://www.blitzortung.org/en/archive_data.php?stations_us
    http_address += "&end_date=" + str(epoch_end)
    http_address += "&end_time=" + str(0)
    http_address += "&start_date=" + str(epoch_start)
    http_address += "&start_time=" + str(0)
    http_address += "&rawdata_image=0"
    http_address += "&north=" + str(lon_max)
    http_address += "&west="  + str(lat_min)
    http_address += "&east="  + str(lat_max)
    http_address += "&south=" + str(lon_min)
    http_address += "&map=0&width_orig=640&width_result=640&agespan=60&frames=12
    #filename_out = date_start.strftime("%Y%m%d")+"_"+date_end.strftime("%Y%m%d"

    elt = driver.find_element_by_xpath("//a[contains(@href,'raw')]")#.get_attrib

    date_start = date_end


Best regards


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  Any chance to get a station in Sardinia?
Posted by: prohu - 2022-01-22, 16:57 - Forum: General Discussion - Replies (1)

Dear all, 

our no-profit organisation (www.sardegna-clima.it ) is very interested in installing a lightning station in centre Sardinia as the Western Mediterranean seems not very well covered.

I've already posted the interested on the relevant page but being "Italy" seems that we are not on a pretty well position...

I was wondering if there is any chance to get the equipment in a reasonable time.

Many thanks in advance.



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  Tonga volcanic eruption
Posted by: MarkusVe - 2022-01-17, 21:51 - Forum: General Discussion - Replies (1)

It looks like lightning from the Jan 15, 4:15 UT volcanic eruption in Tonga are visible in archive data:
However the timestamps seem to be one our late, i.e. 5:15 - 6:30. Perhaps the web interface is actually showing CET instead of UTC?

Regards from Nürnberg,

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  Lightning not showing on the map
Posted by: deesalsphotos - 2021-12-26, 09:27 - Forum: General Discussion - No Replies

hey everyone - just wondering why lightning strikes around Townsville Queensland Australia are not showing up on your map..we are having a great storm atm with GC lightning strikes - is there a issue?? would like to be a server if needed...also why is NSW covered but no other state...hope someone can help me out

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  May we have an update RE: Blitzortung.org & Lightningmaps.org
Posted by: SchwabTh - 2021-12-19, 01:22 - Forum: General Discussion - Replies (3)

[b]What is the status of the websites & their servers/support?[/b]



****I understand there was loss of data servers due to a fire and that the data servers were restored.

****There have been forum posts regarding new versions of hardware and firmware that have not come to fruition.

****Additional posts cite issues with website errors in which stations are listed in duplicate, triplicate

****Some stations are fully functional detecting lightning but are not contributing to "strikes" and are at 0%

Have the developers stopped maintenance/developing? 

An update from Tobias and colleagues will be greatly appreciated...

Thank you from Rochester, Minnesota, USA


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  System Blue rebooting often
Posted by: VK5BD - 2021-11-15, 00:30 - Forum: General Discussion - Replies (3)

My system blue is rebooting often, I know it see a lot of interference during the day due to solar systems around it, and initially thought that was the reason, however I have notice that it is rebooting during the night also. I have tried to use the system log to try and find a possible reason but I seem to be bombarded with remote-config errors (See the extract from the log below) and wondering if this is taking up too much processor time and tripping the watchdog?

Station 2353


2021-11-15 00:19:45 1034.5 | AMP2: Set gain 3 on channel 0, op-amp 0
2021-11-15 00:19:45 1034.6 | HTTP-Request: realloc RecvData 0x0 (745)
2021-11-15 00:19:45 1034.6 | HTTP-Request: realloc RecvData 0x20013190 (975)
2021-11-15 00:19:45 1034.6 | REMOTE-CONFIG: Done with 1 updates and 6 errors
2021-11-15 00:19:45 1034.6 | REMOTE-CONFIG: Too much errors!
2021-11-15 00:19:45 1034.6 | HTTP-Request: free state 0x20013ac8, 0x0, 0x0, 0x0
2021-11-15 00:19:46 1035.4 | REMOTE-CONFIG: Server switched to 1
2021-11-15 00:19:48 1037.5 | HTTP-Request: Malloc state 0x20013b88, 0x20013e20 (2121), 0x20013ba8 (21), 0x20013bc8 (44) | pcb 0x20010144
2021-11-15 00:19:49 1038.6 | HTTP-Request: realloc RecvData 0x0 (745)
2021-11-15 00:19:49 1038.6 | HTTP-Request: realloc RecvData 0x20013190 (825)
2021-11-15 00:19:49 1038.6 | REMOTE-CONFIG: Done with 1 updates and 6 errors
2021-11-15 00:19:49 1038.6 | REMOTE-CONFIG: Too much errors!
2021-11-15 00:19:49 1038.6 | HTTP-Request: free state 0x20013b88, 0x0, 0x0, 0x0
2021-11-15 00:19:50 1039.4 | REMOTE-CONFIG: Server switched to 0

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  Powered off SystemBlue, only power led comes on now
Posted by: JimK5KTF - 2021-11-11, 04:17 - Forum: Hardware, Software, Lightning Physics - Replies (3)

Hi all.
I was doing some reorganizing of my cabling, all was working fine, powered off my System Blue, moved cabling around, got all nice and neat, powered back on and now only power LED lights up.  I let it set for a couple hours while I went off and did other things, but still, just 1 LED lit.
Double checked all cables, everything looks fine.

Any hints/tips/tricks to diagnose and/or get working again?

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  Lightning strike location
Posted by: arminicos - 2021-11-04, 15:35 - Forum: Website, Maps and Applications - Replies (2)

I would need access to a lightning strike location for my city of Zavidovici located in Bosnia and Herzegovina, Europe. Lightning strikes around the city at a distance of up to 20 km from the town of Zavidovići. Is it possible to get constant access to the API since I have applied for the purchase of the device 6 times so far, but no one can tell me that I can buy the device. So I lost hope that I would ever get the device.

Thanks, Armin

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Photo stations not listed in statistics
Posted by: hans.mayer - 2021-10-23, 20:39 - Forum: Website, Maps and Applications - Replies (2)

Dear All,

it seems there is something wrong with the European statistics. There are only 4 stations listed with more than 1 stroke. But when I look at the live map a lot of stations are popping up. 

Kind regards


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