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Ferrite rod antennas - Printable Version

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Ferrite rod antennas - Sputnik - 2020-06-26

If for some reaseon the ferrite rods two antenna copper wire slippt out off the terminal block.
I know soldered to the board.... Whas the next thing to do..
And the "knot" was removd.. and some stupid one forgott to mark the +.
Is there any other way to know which is + -?


RE: Ferrite rod antennas - dupreezd - 2020-06-26

(2020-06-26, 18:28)Sputnik Wrote: If for some reaseon the ferrite rods two antenna copper wire slippt out off the terminal block.
I know soldered to the board.... Whas the next thing to do..
And the "knot" was removd.. and some stupid one forgott to mark the +.
Is there any other way to know which is + -?
Sputnik, it does not matter which wire goes where, as long as it goes to the correct posts on the terminal block.


RE: Ferrite rod antennas - Sputnik - 2020-06-26

Thanks!
One more question in:
https://map.blitzortung.org/statistic_0.php?stations=2722&0_background_transparent=1&1_background_transparent=1&2_background_transparent=1

Why do I usually only have 1 valid channel? and the E-Field antenna have I only seen once?
Does everything work as it should anyway? yes I'm new here...


RE: Ferrite rod antennas - dupreezd - 2020-06-26

(2020-06-26, 18:56)Sputnik Wrote: Thanks!
One more question in:
https://map.blitzortung.org/statistic_0.php?stations=2722&0_background_transparent=1&1_background_transparent=1&2_background_transparent=1

Why do I usually only have 1 valid channel?  and the E-Field antenna have I only seen once?
Does everything work as it should anyway?  yes I'm new here...
Valid on a channel indicates it was used in the calculations to determine where the stroke occurred. Only one channel per user will always be used as it contains the best data.

Search for "sieve" and you will find good information posted by Cutty on how this work. Sorry this is posted on the internal forum. You have to be a Participant to be able to access (Name will be green). Fill in ALL your information on your BO profile. There is a post where to submit if you are still a registered member.

Found your station 2722. Your E-Probe  should be Electric field, not monopole in your BO profile


RE: Ferrite rod antennas - dupreezd - 2020-06-26

Sputnik, I have been watching your signals for some time. It seems you have some sort of magnetic interference  nearby as it only shows up on your H-Field. Where are your ferrites located? Look at computer power supplies, light dimmers, street lights etc

[attachment=4229]


RE: Ferrite rod antennas - Sputnik - 2020-06-26

(2020-06-26, 21:28)dupreezd Wrote: Sputnik, I have been watching your signals for some time. It seems you have some sort of magnetic interference  nearby as it only shows up on your H-Field. Where are your ferrites located? Look at computer power supplies, light dimmers, street lights etc
E-Probe Fixt..
"Fill in ALL your information on your BO profile"? don't think I missed anything..

The H-Field is located at a haymow there is nothing directly nearby. Some 230v wires ~2m away maybe.
However, the only way to access internet is a wifi repeater.. but it is down stairs and away from H-Field.
And the power set to min.. However, believe that both 2.4 and 5Ghz is activated.



RE: Ferrite rod antennas - dupreezd - 2020-06-26

Go here and follow the guidelines in post #1 to get your status changed
https://forum.blitzortung.org/showthread.php?tid=2764&highlight=participant


RE: Ferrite rod antennas - Sputnik - 2020-06-26

I will investigate more of the magnetic interference, next time I'm visit min station.
I didn't think that the interference matters, have been watching a little too and it comes and goes and sometimes it is a lot more..
20-30, 48, 72 and 95Khz are significantly over-represented.

Read somewhere before I got the things about the power supply and that people measured it somehow but couldn't find it now..
According to the advertisement my usb 5v would be extremely low noise, but can the interference come from my power supply?


RE: Ferrite rod antennas - dupreezd - 2020-06-26

(2020-06-26, 23:20)Sputnik Wrote: I will investigate more of the magnetic interference, next time I'm visit min station.
I didn't think that the interference matters, have been watching a little too and it comes and goes and sometimes it is a lot more..
20-30, 48, 72 and 95Khz are significantly over-represented.

Read somewhere before I got the things about the power supply and that people measured it somehow but couldn't find it now..
According to the advertisement my usb 5v would be extremely low noise, but can the interference come from my power supply?

Sputnik, should have done this during the first post, Welcome to the forum and congratulations on getting a controller.

Now, as to the interference, yes, this is something we all have to deal with to some degree. It changes all the time, summer vs winter, day vs night

Here is an excellent post that might just help.
https://www.wxforum.net/index.php?topic=20439.0


RE: Ferrite rod antennas - gerbold - 2020-06-27

Quote:20-30, 48, 72 and 95Khz are significantly over-represented.
These seem to be all harmonics of the same source of 24 kHz:

24 = 1 * 24
48 = 2 * 24
72 = 3 * 24
96 = 4 * 24


RE: Ferrite rod antennas - Sputnik - 2020-06-29

I think i killed the harmonics 24 kHz for good now..  Smile
Read lots of threads about interference.
But when the gain whent up now there is a lot of interference 5-22KHz Angry



The 24 kHz came from my usb power so I guess the rest also comes from the PSU.
I think I must replace it with another one, but i´m trying to find someone preferably in the EU who sells something realy good.
In the meantime I will explore some more and try to get rid of 5-22 KHz interference, in another ways to.


RE: Ferrite rod antennas - gerbold - 2020-06-29

Hi Sputnik,
there is not much I personally would worry about. The only signal that popped into my eyes is one on the red channel which repeats several times a minute.
[attachment=4238][attachment=4237][attachment=4236]
Watch out for the very same shape which repeats regularly. This has most likely a technical source. There may be others which I didn't recognize.
Klaus


RE: Ferrite rod antennas - gerbold - 2020-06-29

Hi Sputnik,
you may want to edit your signature here: https://forum.blitzortung.org/usercp.php?action=editsig
Code:
Stations: <a href="http://www.lightningmaps.org/blitzortung/region1/?bo_page=statistics&bo_show=station&bo_sid=2722" title="your country, your city, 19.5" target="_blank">2722</a>
Klaus


RE: Ferrite rod antennas - Sputnik - 2020-06-29

(2020-06-29, 18:01)gerbold Wrote: Hi Sputnik,
there is not much I personally would worry about. The only signal that popped into my eyes is one on the red channel which repeats several times a minute.

Watch out for the very same shape which repeats regularly. This has most likely a technical source. There may be others which I didn't recognize.
Klaus
Thank you so much!
First thing pop in my mind, would a sork/mole scarer, (solar/battery power) do that signal?

https://www.kjell.com/globalassets/productimages/224823_50146.tif?ref=397BA9442F&format=jpg&w=960&h=960&mode=pad
There are three ~ 6- 9m away.


RE: Ferrite rod antennas - gerbold - 2020-06-29

I'm sorry, not my area of expertiese. There are people knowing much more about noise i.e. Cutty or MWaters.