Hi I am new here and need to ask a couple of questions

there is specific distance where to install The Magnetic antenna (h-field) and the system housing?
and the ferrite antennas can be placed in a plastic tubes?  

thanks

Hi!

Just curiosity, what's the purpose of J1 contacts on the System Blue? The nearby J0 is for enabling low-pass filters. But what is J1 for?

Thank you.

New sys blue kit builder here, looking for help with the 3 RJ45 connectors. Seems the front panel space for the Highfield RJ45 connector is smaller than the other RJ45 space. Just wondering if I am missing something, or if the Hf gets a different style of connector. Thanks. Jt

We don't need big antennas for the range 30-300km

I have made lots of antennas and they all work well.
Important - Self-resonance must be high.

First I made a "reference antenna" 160mm Ø, 1mm, 14turn

Then one for a 75mm standard plastic tube
A piece of brake pipe and a 48-turn transformer on a toroid

The top antenna is isolated from toroid and is also used as an E-Field antenna - Perhaps the third channel in the H-Field antenna could be for E-Field   

/Richo

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Hurricane Harvey is showing strong lightning activity in at least two bands in its north-eastern quadrant. Thunderstorm activity is usually associated with a strengthening of the cyclone, so Harvey may even become a strength 3 hurricane.
Last year's hurricane Matthew produced a large number of sprites during such a phase, indicating very strong positive lightning.

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Just curious how anyone might be monitoring station status, i.e. is anyone monitoring somehow when a station goes offline, stops reporting or has no stroke count.  I kindly received a message from a fellow user yesterday that my station was online but was not reporting strokes.  Without that I would not have known as I do not always check my station info web page.  I appreciate any feedback or suggestions on this topic - including (hopefully) cost free solutions.

Thanks,

Brad

Hi, is it possible to overlay the lightning strikes on a custom map?

Look at the Lightningmaps.org site today.  Amazing.  

Strikes from the central US are being detected at stations in Japan and even Australia and all over the world. Strikes in Central Europe are being received in the US. 

Being new to this perhaps this happens commonly but I've never seen it before.

Must be the eclipse  

--Kurt

Hello, my name is Oana Liviu from Romania and I am currently operating the station number: 951 from Resita, Romania (system RED).

It is well known that if you use two perpendicular antennas, if you position them to N-S/W-E and you wire them correctly, you can get an estimate of the direction of the strike by processing the raw signal data (see attached image). This can be acheived by calculating the arctangent of the ratio between the signals coming from each antenna among some other calculations.

Let's say that one is able to determine a relatively correct direction of the signal.

My question is: if the calculated direction by the means posted above is somewhat the opposite of the real direction (the strike is located to the south-west, but the calculation yields a north-east direction), that means that that strike have a positive polarity? Considering the calculations have been correctly done?

I am considering some experiments based on this and I want to know if I'm heading in the right "direction".

Thanks

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When looking at the Lake Garda area in Italy, a square of 'old strikes' are missing. The new strikes are showing as yellow dots, but older ones, like in other areas are showing.

URL to see is: https://www.lightningmaps.org/?lang=nl#y...dl=2;dc=0;

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