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Author Topic: jamming 6220 AM 2037 UTC 23 Nov 2019  (Read 2346 times)

Offline poshguy

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jamming 6220 AM 2037 UTC 23 Nov 2019
« on: November 23, 2019, 2041 UTC »
There has been a strong test tone on 6220khz this evening, same as the one that was on 6210khz the other day.

I noticed that thread got moved as suggested this was jamming by Iran.

Are we confident this is jamming now the frequency has changed?

edit by Ray : from UNID to jamming (and format)
« Last Edit: November 23, 2019, 2340 UTC by Ray Lalleu »
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Offline Ray Lalleu

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Re: UNID 6220khz AM 20:37 UTC 23 Nov
« Reply #1 on: November 23, 2019, 2051 UTC »
on 6220.0
2049 I hear : a talking station, a Stanag, and hets.
Strangely, on daytime, the jamming hets were on 6210, disturbing LHH on 6205.
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Offline ChrisSmolinski

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Re: UNID 6220khz AM 20:37 UTC 23 Nov
« Reply #2 on: November 23, 2019, 2102 UTC »
This is almost certainly not a pirate.  ;D  Sounds like the same tone that was on 6210.
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Offline Ray Lalleu

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Re: UNID 6220khz AM 20:37 UTC 23 Nov
« Reply #3 on: November 23, 2019, 2130 UTC »
This is almost certainly not a pirate.  ;D  Sounds like the same tone that was on 6210.
Of course. Just disturbing the 48 m pirate band !
What's the better forum for opposition stations and jamming ?

D/E/F/G/It/Sp : Dutch/English/French/German/Italian/Spanish
+/- : about 0.02 offset, ++/-- 0.03/0.04 offset
Balanced wire antennas, wire lines and ATU
*** Mes pages ex-OEM : semaines des OC, radios-médias, techniques de réception, en français, demandez  les ! ***

Offline The Ether Hacker

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Re: UNID 6220khz AM 20:37 UTC 23 Nov
« Reply #4 on: November 23, 2019, 2153 UTC »
The power levels and coverage of this signal would suggest a non-pirate origin, unless there is a pirate running hundreds of kilowatts with transmitter tower complex somewhere, and is willing to pay the electricity bill to transmit this "pleasant" test tone for many hours every day...
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Offline Brian

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Re: UNID 6220khz AM 20:37 UTC 23 Nov
« Reply #5 on: November 23, 2019, 2329 UTC »
Just me testing my new rig🙃🙃🙃

Offline The Ether Hacker

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Re: UNID 6220khz AM 20:37 UTC 23 Nov
« Reply #6 on: November 24, 2019, 1828 UTC »
Just me testing my new rig🙃🙃🙃

Impressive! ... so your rig runs on nuclear?
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Offline Brian

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Re: UNID 6220khz AM 20:37 UTC 23 Nov
« Reply #7 on: November 24, 2019, 1930 UTC »
Just me testing my new rig🙃🙃🙃

Impressive! ... so your rig runs on nuclear?
I wish.
I notice that neither it or the lower power IRIB tx is on tonight.

Offline fox558

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Re: jamming 6220 AM 2037 UTC 23 Nov 2019
« Reply #8 on: November 24, 2019, 2006 UTC »
I think but am not sure if the IRIB has moved to 6230 tonight disturbing Coast FM! Certainly something is on there that normally isn't.

Offline Brian

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Re: jamming 6220 AM 2037 UTC 23 Nov 2019
« Reply #9 on: November 24, 2019, 2054 UTC »
I think the signal on 6230 is the same as the tone transmitter judging by the strength.

Offline The Ether Hacker

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Re: jamming 6220 AM 2037 UTC 23 Nov 2019
« Reply #10 on: November 24, 2019, 2112 UTC »
I think the signal on 6230 is the same as the tone transmitter judging by the strength.

I think you both might be right, or near the truth.  All I can say, judging briefly from the current content I listened to, is that it is currently transmitting a religious speech in Arabic (not Persian) and I hear Arabic words and phrases suggesting it is about religious Shia Islam places in Iraq.  I have some elementary Arabic language knowledge

It seems way too strong to be pirate, but it may be clandestine in the sense that it doesn't officially have permission to be on 6230 khz.

There has been a lot of unrest in Shia dominated Iraq... and also of course in Iran with the petrol protests.... and the fact that they cut off internet access, means that shortwave is used to circumvent internet blockades by some religious group in the middle east?
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Offline The Ether Hacker

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Re: jamming 6220 AM 2037 UTC 23 Nov 2019
« Reply #11 on: November 24, 2019, 2138 UTC »
I think the signal on 6230 is the same as the tone transmitter judging by the strength.

I think you both might be right, or near the truth.  All I can say, judging briefly from the current content I listened to, is that it is currently transmitting a religious speech in Arabic (not Persian) and I hear Arabic words and phrases suggesting it is about religious Shia Islam places in Iraq.  I have some elementary Arabic language knowledge

It seems way too strong to be pirate, but it may be clandestine in the sense that it doesn't officially have permission to be on 6230 khz.

There has been a lot of unrest in Shia dominated Iraq... and also of course in Iran with the petrol protests.... and the fact that they cut off internet access, means that shortwave is used to circumvent internet blockades by some religious group in the middle east?

OK... it seems that there are two high power stations on 6230 khz... one broadcasting in Persian... this could be Radio Farda (sponsored by the US government) from the United Arab Emirates.... and a religious Shia station in Arabic, could be from inside Iran... the current skip zones on kiwiSDRs in the Middle East give clues to their country of origin.  In Europe I can only hear the Arabic language station.  These are high power stations, very high power.
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Offline fox558

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Re: jamming 6220 AM 2037 UTC 23 Nov 2019
« Reply #12 on: November 25, 2019, 0248 UTC »
I think the signal on 6230 is the same as the tone transmitter judging by the strength.
At this moment yes its extremely strong on 6230. But there is now a weaker station on 6210 and this station is also heard on the twente SDR on 1395 MW. No sign of the jamming tone tonight

Offline The Ether Hacker

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Re: jamming 6220 AM 2037 UTC 23 Nov 2019
« Reply #13 on: November 25, 2019, 0822 UTC »
I think the signal on 6230 is the same as the tone transmitter judging by the strength.
At this moment yes its extremely strong on 6230. But there is now a weaker station on 6210 and this station is also heard on the twente SDR on 1395 MW. No sign of the jamming tone tonight

.... maybe, although, in my honest opinion, there is a more effective way of jamming a signal than the hetrodyne "test" tone.  North Koreans transmit a white noise type signal, which is more effective with less power... than broadcasting a programme "over" a weaker signal or a test tone.

I have heard Iranian jamming of Radio Farda on Medium Wave, here in the UK, and that too was a "white noise" type jammer.
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RX: Kenwood R-2000
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