Added: 2 years ago
From: PD3EM
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  • id love to buy one of these radios but they cost a small fortune

  • Где купить такой аппарат ????

  • Sounds like someone speaking a strange language. What is that crazy moon-talk? (joking)

  • Te odgłosy to przecież norma przy strojeniu radia, plus wiatr słoneczny, plus wiele innych zjawisk związanych z atmosferą naszej planety i różnego rodzaju promieniowaniem.

  • I was told it is called low over the horizon radar could be wrong though.

  • I sometimes hear this on 11 meter band, but it's there and gone in seconds.

  • very strange...

  • Sounds like broken hi-speed lfo on dual cutoff filter ;]

  • This is datacom.

  • its one big skip bubble,,VCF-454

  • Pretty sure this is the sun you're hearing, or it's affect on the ionosphere. In the morning it sweeps up, and at night it sweeps down if I recall

  • I have heard this on all the bands here in the states. its a running QRM of some sort I have been hearing it since I became a ham back in 1988. Don't know what it is but its common its not an everyday thing but it happens about once or twice a month I have noticed. I wonder if its a satellite or some other type of detection equipment out there?Anyways thanks for sharing 73's de KJ5CQ

  • What long wave radio for? It sounds interesting!

  • Those are aliens?

  • Here in SW scotland we used to call it the scanner as it moved up and down the channels. Sometimes it would take nearly a minute to move through a channel and other times it would be less than 1 second. When it was on a channel it would be a full 30+ signal. Have tracked it from 29.6 down to 24.5 Megs.

  • I'm 11 meters CB DX'er and i heard this QRM also on 27.755 Mhz USB. Really weird. 73's.

  • Yep, the "squirly" has been around for many long years as fakeyourphoto says below. There used to be a factory near here that used RF to set glue on veneered furniture, this created an unstable carrier that soiunded very much like this. I suspect a manufacturing process somewhere in eastern Europe is the source because, as someone said, it's only when there's ionospheric propagation to the east you hear it. It wanders up and down the spectrum from about 25 to 31 megs.

  • Hi, I heard this, too. Today around 10m band! It moves upwards....

  • I dont know what it is but I can say I heard this many times as far back as 1975 There was no haarp, bpl, or switch mode power supplies back then. Also it only happend during skip conditions (propagation)

  • ah, ik vond het al bekend klinken, dit signaal is al minstens 20 jaar te horen van tijd tot tijd

  • @paarsefrikandel That's right! I recognise this signal already from the 80's!! Not only on the upper bands, but also 40m. Don't know what it is.

  • sounds like a bad tv-rx-amp

  • I get this often on 11 m. most of the time when prop is from east. long distance

  • 1:07 Probe Droid from Star Wars???

  • im getting this sound on my 15 transistor radio, specifically shortwave

  • Sounds like noise from outer space, possibly a pulsar neutron star.

  • Art Bell says this may be HAARP. But I agree that it has been around since long before HAARP existed!!

  • very nice transceiver !

  • 0:56 It looks like german, Arab and Turkish... mixed with cheese.

  • Whatever it is, it's relaxing.

  • An unstable PA or outboard amplifier somewhere (in someone's shack or truck) in the 'skip zone' ...

    When the 11 meter band is open the CBers are heard that 'sound' comes and goes across 10 Meters .. that kind of sound has been around as long as I can recall (3 decades).

    .

  • HAARP?

  • I have the EXACT Same gergle sound on my car's AM Radio while the car's Air Conditioner is On and I'm driving next to the main residential power distribution lines, at only one part of town. The interference creeps slowly up the AM band the longer the AC is on. I've always thought it was some sort of charge coupling

  • Its an imperial probe droid...

  • its the static electric fluxing with other signals

  • Where did you buy this?

  • Does this device pick up radio waves within a localized area?

  • I think thats atmospheric noise.

  • @othrower74 atmosphereic noise is static.

  • Sounds like a magnetic storm! Maybe Jupiter wad active that day!

  • Here in north italy i can copy this sounds in more times, but only when the propagation arrive, on 11 and 10 meters band, the signal arrive from the east europe with more intensity. On 12 meters i try to test for understand what's happen.

    73-51 leonardo.

    i2/ lu5adk

  • Is it Jupiter? See Space weather .com.

  • haha that was me keyin up on the cb with a davmade doin about about 20,000 watts :)

  • @deadkey61 and me blowing bubbles in my milk in the background XD

  • That is the sound of HAARP when u hear that Skip is not far away

  • I've heard this same sound many times on 10 and 11 meters when the band is open. But never as intense as they are in your recording. I've always wondered what it was also.

  • Bud i think this sound is active only when the band is open.

  • i know this sounds too. Many times i heard this sounds when this band is open for DX. i think it is atmospherics, from solar bursts or from ionosphere...

  • I don't think it was BPL. The power company isn't using it nor my neighbours.

    That morning I was in a QSO on 10 meter with a station from France who was hearing the same sounds. See my website for more info.

    73, Elmar

  • Are you using a switch mode power supply in the shack? sounds like the floating rf that such a psu makes on the bands... Dave M0TWA

  • Hi Dave,

    Luckily I don't have such power supplies.

    The sounds are not always there.

  • BPL?

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