Mysterious signals from West Africa on 28 MHz

Discussion in 'Amateur Radio News' started by G4TUT, Sep 11, 2019.

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  1. KJ4VTH

    KJ4VTH Ham Member QRZ Page

    could it be?

    [​IMG]
     
    MM0IMC and W5TTP like this.
  2. KJ6ZOL

    KJ6ZOL Ham Member QRZ Page

    K4XJ, over the horizon radar has made a very strong comeback over the last decade. IARU-R1 QRM monitors frequently pick up OTH radars on 10m, most likely Soviet-style equipment used by former Soviet Empire countries and places affiliated with but not officially part of the USSR. Iran in particular makes heavy use of old Soviet radio equipment-in the mid-2000s I noticed them using a bubble jammer to jam BBC Farsi, and they also seem to use Soviet Woodpecker OTH radars. It's possible that the Putin govt makes use of woodpecker OTH radars located in the former Soviet Republics. Putin isn't making the mistake that Brezhnev did with Duga-3 where most of Europe was hearing the woodpecker on landline telephones (among other places it shouldn't have been) because the Duga installation was far too powerful. Few hams use 10m nowadays and the Putin govt has realized that OTH radar can be as effective without the megablast signal that Duga-3 had, so they limit the current radars to 10m and the only ones who care are the IARU. A 60m Russian OTH is very likely-another area where nobody notices or cares.
     
    KD7WPJ and KQ6XA like this.
  3. K4XJ

    K4XJ Ham Member QRZ Page

    Well that may be, but this is the first time I have heard them since the 1990's
     
  4. NL7W

    NL7W Premium Subscriber QRZ Page

    :(
     
  5. N6SPP

    N6SPP XML Subscriber QRZ Page

    Monitoring 27.385 LSB and 27.165 AM are two of the many great tools when looking for a 10m opening in your region. And vy good on 29 MHz AM.. During openings I call cq right near 29.02 MHz. 73, Eric
     
    PU5KNB and KC2YMO like this.
  6. N6SPP

    N6SPP XML Subscriber QRZ Page

    "...most hams..." might not be using that part of the band.. But us 10m die-hard fans are. 73, Eric (n6spp/b, 28.2179 MHz,cm96dm)
     
    WF7BSR and MM0TFU like this.
  7. N6SPP

    N6SPP XML Subscriber QRZ Page

    Go easy on 60m.. As an active 60m operator since week one (about 17 yrs now).. I care :)
     
    WF7BSR likes this.
  8. KG5SHO

    KG5SHO Ham Member QRZ Page

    A Used Ham Shackapotty
     
    W4HM likes this.
  9. KC5TJS

    KC5TJS Ham Member QRZ Page

    If more folks would do something similar then we might have more activity on 10. About 12 years ago a friend had given me an old CB antenna.."CLR II" I think. At first I though about scavenging it for parts when it dawned on me this would make a great 10 m antenna and it does, LOL! It's pretty much flat between 28.300 and 28.500 and still low swr from there up into 29.000 portion of the band. I could use this antenna for a lot of things.
     
  10. W7UUU

    W7UUU Super Moderator Lifetime Member 133 Administrator Volunteer Moderator Platinum Subscriber Life Member QRZ Page

    Another really good one is 28.425... Todd is on practically 24/7 calling CQ on "his" frequency, even when the band is dead.

    I always advise tuning 28.200 to 28.300 for beacons - even if you can't copy Morse just count the number you hear. If you hear NONE, obviously the band is dead. But if you tune the dial and hear signal after signal you can well assume the band is open. Of course, if you are able to copy the call sign and grid, you'll know to where the band is open and that's obviously better

    Dave
    W7UUU
     
    KA2FIR likes this.

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