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Author Topic: Mystery Radio 21 jammed! 4860 AM 1719 UTC 04 Apr 2022  (Read 626 times)

Offline Ray Lalleu

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Mystery Radio 21 jammed! 4860 AM 1719 UTC 04 Apr 2022
« on: April 04, 2022, 1720 UTC »
on 4860.0
1719 music, badly jammed (bubble jamming)
1732 W then M voice, ID no copy, ... at gmail.com
ID thanks to Mad Radio Dxer UK (see below)

1950 music, jammer not heard now (except maybe in short fades, not sure),
1958 ID + @, singer in G
« Last Edit: April 04, 2022, 1959 UTC by Ray Lalleu »
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
*** Semaines des ondes courtes, pages médias et technique, en français, demandez  les par message ici dans HFU ***

Offline Mad Radio DXer UK

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Re: UNID jammed! 4860 AM 1719 UTC 04 Apr 2022
« Reply #1 on: April 04, 2022, 1728 UTC »
Maybe Mystery 21? I heard continuous music before with no jamming. Now I hear the jamming clearly as conditions of the band are improving.

Edit: Just been informed by Mystery21 that it is them on 4860 kHz.
Indoor setup: Elad FDM-S2 & MLA-30 antenna. One stock & another modified.
Outdoor radios: XHDATA D-808, Tecsun PL-330, Tecsun PL-390.

Offline kris

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Re: Mystery Radio 21 jammed! 4860, 4870 AM 1719 UTC 04 Apr 2022
« Reply #2 on: April 04, 2022, 1826 UTC »
1824 S9+20 jammed music,  I didn't listen to it before thinking it was Asia BCS
1858 S9+40 New theory   Washed Out
2055 ID promo jingle How soon is now?  T.A.T.U.
2100 QSY 4870 because of hard RTTY on 4860
2103 W M ID Pereputala  SEREBRO
2106 Mystery Radio 21 @ your rec.rep.are welkome
        S9+40 SINPO 55555
2112 Pozwól żyć  Gosia Andrzejewicz PL   thanks!

  - 1832 the channel 4860 is dirty but the upper band is the main distortion
    Interesting observation, after expanding the width to about 6.5kHz, the signal readability improves
    4870 early was free, but now 4871 is busy
« Last Edit: April 04, 2022, 2157 UTC by kris »
RX888 ( SDR-FE-PLAY, HRD-747, Sony XDR-F1HD),
Ant. Sky Loop 180m 15m AGL, Sky Loop 120m 35m AGL
       + QRM X-phase eliminator
QTH:  N Poland  Ru/Sp/Gr/Sb=Russian,Spanish,Greek,Serbien
eQSL appreciated to: 13krzycho@gmail.com

Offline Mad Radio DXer UK

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Re: Mystery Radio 21 jammed! 4860 AM 1719 UTC 04 Apr 2022
« Reply #3 on: April 04, 2022, 1831 UTC »
I can hear Mystery 21 a lot better using ECSS-L mode with very little jamming. It seems the jammer is using USB mode, because when I use ECSS-U the jamming is a lot more present. I also see the jamming signal stronger above 4860 kHz.
Indoor setup: Elad FDM-S2 & MLA-30 antenna. One stock & another modified.
Outdoor radios: XHDATA D-808, Tecsun PL-330, Tecsun PL-390.

 

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