Hello, i am a beginner and an electrical college student.
so, i have a project to try Magnetic Direction Finding (MDF) method to lightning location

because natural lightning occurence is hard to predict, my lecturer suggest me to model it into a spark gap from lightning impulse generator.

i have a question

can antenna for ligtning location system can also work to detect signal from a spark gap? or i have to make another antenna because the difference characteristic between lightning and spark gap? thank you! i hope you understand my english.

Hello everyone!

A curious phenomenon appears on my Chrome browser, each time I zoom in by pressing + or - on the site https://map.blitzortung.org/ it appears curious pixel which seems to move. Perfectly this is only displayed for a fraction of a second or it is displayed continuously (but very rare)
Is it a defect of my chrome browser or does someone else have the same problem?

may be a coded message from aliens.  

Patrick.

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Olen lihtsalt segaduses pärast seda, kui kohtasin kedagi, kes üritas mulle Enelit (üks tükk) seletada.

Põhimõtteliselt oli idee, et kuna meie poolt välk pärineb tagasitulekust (mis tekitab välgu valguse), peab igaüks, kes reageerib piksenoolile, reageerima tagasituleku kiirusele (1/3 LS).

Mul on inimesi, kes ütlevad, et välgulappe ei saa enamasti tagasitulekuni mõõta, kuid miks see idee vale on?

Kas sellepärast, et tegelik välk pole sama kiirusega kui tagasitõmme?

Kui see nii on, siis miks ei saa lihtsalt öelda, et igaüks, kes reageerib välgule (mida me näeme), reageerib tagasilöögile?

I bought six of the System Blue digital filter chips from Ebay, but used only four of them.  LTC1569CS8-7 LTC1569-7 SOP-8.

I offer the remaining two free to a good UK home.  (I've nothing against the rest of the world, but I don't fancy fighting customs forms, etc.)

They were stupidly expensive (and not in stock) from normal UK component distributors, but cheap from Hong Kong.  The four I've used seem to work.

(Back when I worked for a UK chip manufacturing company, some of our chip batches that failed production test would sometimes turn up in Chinese-made products.)

https://www.ebay.co.uk/itm/154019932554

I don't know how this forum supports messaging, but Gypsum@pobox.com should find me.

Carl

When your signals get into the Christmas Spirit.

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Hallo,

ich hätte ein komplettes System RED abzugeben:
PCB 10.3 / 12.3 komplett bestückt und funktionsfähig aufgebaut
inkl. 2 elektr. geschirmter Ferritantennen, GPS-Antenne und Netzteil.

Bei Interesse, bitte PN an mich.

Viele Grüße.SHAREit Appvn

http://lightning.nmt.edu/nmt_lms/

https://www.washingtonpost.com/weather/2...pped-it-d/

https://www.washingtonpost.com/weather/2...ts-wrapper

Node 1445 has been operating for a number of years. I am looking for a new home for it.

Complete self assembled system with ferrite core antennas, central unit, remote amplifier and GPS receiver.