[Alexandria Radio Club Reflector] Russia interfering with the amateur bands?

[DeYoung James]

 There are several countries that operate OTHRs.  40m has been the most often "abused" band for OTHRs and 20m too but they can/will appear almost anywhere.  The military/government runs them on any frequency they want, most often they are 20-KHz wide but can be narrower or wider.  The chipping rate may vary but is usually pretty fast. Observations of Over-the-Horizon Radar Interference in Ham Bands Top All Others (arrl.org) There is nothing you can do about them but complain and perhaps feel better for a short time.  Over-the-horizon radar - Wikipedia
ITU region 1 still has a relatively active monitoring system for intruders.  Region 2 & 3 has nothing.  Monitoring System (IARUMS) | International Amateur Radio Union (IARU) (iaru-r1.org)
IN and around the 10m band you will often hear SeaWiFi radars.  They usually sweep slowly across about 10 or 20-KHz.  They are used to monitor ocean waves and surface temperatures. There are other intruders in HAM bands to be found and heard. HF Radar Surface Currents (noaa.gov)
Even the ionosounds which measure ionsphere densities sweep across the entire HF spectrumand can be heard or seen on a panadapter if one knows what to look for.  
Jim DeYoung (N8OQ)
    On Wednesday, August 23, 2023 at 12:09:21 PM EDT, Todd Taylor <todd.taylor83 at gmail.com> wrote:  
 
 Thanks for the interesting information. I actually heard a woodpecker sound
on 20m about an hour ago. A POTA activator indeed referred to it as such.

Video on the Russian Woodpecker
<https://www.youtube.com/watch?v=wB_jiigRq-c>

Todd
KO4IJH

On Wed, Aug 23, 2023 at 9:35 AM Rich Adamy <ka4gfy at gmail.com> wrote:

> I have heard it as well around 7 MHz.
>
> In the early 1980's Russia (USSR) was using Over the Horizon Radar on
> the HF bands.,  It was everywhere.  It sounded like a woodpecker and
> it was called the "Russian Woodpecker" by hams all over the world.
>
> After a while, the USSR shut it down.  Nobody really knows why, but
> while it was running, it was a major annoyance.  Russia may be using
> an upgraded version to track Ukrainian activities.  Doesn't surprise
> me..
>
> Rich, KA4GFY
>
> On Wed, Aug 23, 2023 at 8:46 AM Kenneth R. van Wyk <ken at vanwyk.org> wrote:
> >
> > Greetings ARC friends.
> >
> > Did anyone else experience a massive amount of interference on the 30
> meter band last night between about 9-10 PM? I noticed it between about
> 10.132 - 10.154 MHz and was concerned it would block my morning Winlink
> Wednesday P2P session, which I usually run on 10.143 MHz.
> >
> > After asking around on our Discord group, Jason (WA6MPR) suggested the
> culprit was Russian radar. See:
> >
> > https://www.sigidwiki.com/wiki/29B6_%27Kontayner%27_OTH_Radar
> >
> >
> > Am I the only one here who was impacted by the interference? It wasn’t
> subtle. See my waterfall display in a Winlink session below.
> >
> > Cheers,
> >
> > Ken van Wyk
> > Armata Scientia
> >
> >
> >
> >
> > 
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