SAUDI ARABIA  11936.207 kHz approx. peak of Riyadh's carrier
on upper side flank, at 14.46 UT on Wed Sept 25,
S=9+35dB noted on SDR remotedly in Doha, Qatar, ME.
73 wolfie df5sx

From: Zacharias Liangas via groups.io
Sent: Wednesday, September 25, 2024 1:21 PM
Subject: Re: [WOR] ARS Riyadh Yemen excile radio on 11936v kHz and -
probably - Iranian Sirjan site jamming up to 11959v kHz
What I can understand from the waterfall and spectrum analysis
Reception via TWR kSDR Cyprus
This is clearly a carrier shifting upwards to around 8-9 kHz.  The
modulation dissipates in proportion with the carrier to a max length of
18kHZ reaching to around 11952KHz. The spectrum analyzer shows that the LSB
side has less modulation than he USB part
Today the signal 25/9  1z+ is centered on 11936.159 kHz. It is highly
variable to a range of ±100HZ More zoom could help but the
Here is the waveform as tested in an audio program : 13 HZ for the marked 1
second!
I posted this info also on the page
https://zachs-radiopage.blogspot.com/2024/09/comenting-on-problem-happened-in-sanna.html
and hope laeter to add more info if possible
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EI2IP, Ireland, logged at 15:47 UTC, Sept. 24, in FT8 mode on 40.680 mhz. Signal Strength -18 DB and -1.1 DT. RX: Yaesu FT-847 and 5 ele 6M Beam. Bill Smith, Douglas, MA.
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SAUDI ARABIA 11936.143+ kHz Sept 18 at 1806 UT, very rapid

chirping vs Yemen service, S=9+20dB. Jamming from Iran? UTwente flails to

lock onto when tuned to 11935 kHz, but finally stix here when tuned to

11936.00 kHz.

(Glenn Hauser-OK-USA, via NASWA Electronic Flashsheet #1170 Sept 22)

11936.173 approx. kHz, wobbling carrier and upper side band signal of Yemen

excile radio Riyadh in Arabic. S=9+35dB signal into Doha Qatar SDR unit

remotedly at 15.20 UT on Tue Sept 24, hit heavily by probably Iranian

jamming signal - 23 kHz wideband - up to 11959.4 kHz - from Sirjan SW center?

[selected SDR options, span 12.5 kHz RBW 15.3 Hertz]

(wb df5sx, wwdxc BC-DX TopNews & hcdx Sept 24)
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But gone suddenly at 20:57:45 Walt

On Tue, Sep 24, 2024 at 8:57 PM Volodya S <canswl@gmail.com> wrote:

> I see and hear the same in Masset. Very strong at 20:56. The chirping
> extends up to 11955 kHz, but strongest between 11936 and 11940. 73, Walt
>
> On Tue, Sep 24, 2024 at 3:39 PM Wolfgang Bueschel via groups.io
> <df5sx.p11=gmx.de@groups.io> wrote:
>
>> SAUDI ARABIA 11936.143+ kHz Sept 18 at 1806 UT, very rapid
>>
>> chirping vs Yemen service, S=9+20dB. Jamming from Iran? UTwente flails to
>>
>> lock onto when tuned to 11935 kHz, but finally stix here when tuned to
>>
>> 11936.00 kHz.
>>
>> (Glenn Hauser-OK-USA, via NASWA Electronic Flashsheet #1170 Sept 22)
>>
>>
>>
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I see and hear the same in Masset. Very strong at 20:56. The chirping
extends up to 11955 kHz, but strongest between 11936 and 11940. 73, Walt

On Tue, Sep 24, 2024 at 3:39 PM Wolfgang Bueschel via groups.io <df5sx.p11=
gmx.de@groups.io> wrote:

> SAUDI ARABIA 11936.143+ kHz Sept 18 at 1806 UT, very rapid
>
> chirping vs Yemen service, S=9+20dB. Jamming from Iran? UTwente flails to
>
> lock onto when tuned to 11935 kHz, but finally stix here when tuned to
>
> 11936.00 kHz.
>
> (Glenn Hauser-OK-USA, via NASWA Electronic Flashsheet #1170 Sept 22)
>
>
>
> 11936.173 approx. kHz, wobbling carrier and upper side band signal of Yemen
>
> excile radio Riyadh in Arabic. S=9+35dB signal into Doha Qatar SDR unit
>
> remotedly at 15.20 UT on Tue Sept 24, hit heavily by probably Iranian
>
> jamming signal - 23 kHz wideband - up to 11959.4 kHz - from Sirjan SW
> center?
>
>
>
> [selected SDR options, span 12.5 kHz RBW 15.3 Hertz]
>
> (wb df5sx, wwdxc BC-DX TopNews & hcdx Sept 24)
> _._,_._,_
> ------------------------------
>
>
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