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Author Topic: UNID 1622.5 + 4867.5 AM 0050 UTC 28 Sep 2021  (Read 709 times)

Offline Mystery21

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UNID 1622.5 + 4867.5 AM 0050 UTC 28 Sep 2021
« on: September 28, 2021, 0103 UTC »
on 1622.5 + 4867.5 AM (harmonic frq.)
0050 UTC S9 on CZ SDR with Balkan or Greek music without ID. And strong 3rd harmonic on 4867.5 Khz AM!  ???
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Offline kris

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Re: UNID 1622.5 + 4867.5 AM 0050 UTC 28 Sep 2021
« Reply #1 on: September 28, 2021, 1610 UTC »
Quote from: Mystery21 on September 28, 2021, 0103 UTC
on 1622.5 + 4867.5 AM (harmonic frq.)
0050 UTC S9 on CZ SDR with Balkan or Greek music without ID. And strong 3rd harmonic on 4867.5 Khz AM!  ???
     Interesting observation! I didn't think that the QRM around your channel could be a harmonic from the MW band.
 I will be checking now, because I have a satisfactory reception !,6 - 1,7 MHz, of Greek, Serbian and of course Dutch stations.
  Almost every day, in the 48m band, I observe the second harmonic of Russian stations (from the Crimea area) operating in the 100m band.
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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: Gdańsk N.Poland  Ru/Sp/Gr/Sb=Russian,Spanish,Greek,Serbien
eQSL appreciated to: 13krzycho@gmail.com

Offline Mystery21

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Re: UNID 1622.5 + 4867.5 AM 0050 UTC 28 Sep 2021
« Reply #2 on: September 28, 2021, 1724 UTC »
today on 1621.45 AM

1817 S7 on SDR CZ + SDR Romania. 3rd harmonic now on 4864.45 AM ! >:(

Very interesting to watch but shows a very dirty transmitter without any filters at the output.
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Offline Mystery21

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Re: UNID 1622.5 + 4867.5 AM 0050 UTC 28 Sep 2021
« Reply #3 on: September 28, 2021, 2152 UTC »
on 4864.9

2145 S4-6  New 3rd harmonic on Litti SDR Finland and Tambov SDR  from 1622 AM (Greek Station) :o
« Last Edit: September 28, 2021, 2155 UTC by Mystery21 »
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Offline kris

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Re: UNID 1622.5 + 4867.5 AM 0050 UTC 28 Sep 2021
« Reply #4 on: September 28, 2021, 2302 UTC »
2255 yes on 1622 S9+10 works GR station and on 4866 is wizible carrier S9+ and trace of the same music
         This is a sad reality!
« Last Edit: September 28, 2021, 2308 UTC by kris »
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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: Gdańsk N.Poland  Ru/Sp/Gr/Sb=Russian,Spanish,Greek,Serbien
eQSL appreciated to: 13krzycho@gmail.com

Online Ray Lalleu

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Re: UNID 1622.5 + 4867.5 AM 0050 UTC 28 Sep 2021
« Reply #5 on: September 28, 2021, 2318 UTC »
on 4866 : can't find the faintest signal here (near strong Mystery 21)
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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
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