[CQ-Contest] 10 Meter Sweeping Sounds?

Joe nss at mwt.net
Thu Mar 6 08:51:31 EST 2014

Screen shot 2
What in the world is that signal that looks like DNA?

The Original Rolling Ball Clock
Idle Tyme
On 3/5/2014 9:28 PM, Don Moman VE6JY wrote:
> I have seen other reports of these over on the RFI reflector, but I have
> not observed them until this evening.  That's not to say I've been watching
> all that carefully other times tho.
> Very visible on the Perseus sdr from before 0100 ut to past 033000 from 27
> to almost 30 megs, using a 7 el 10m yagi at 150'.   From VE6, the signal
> was only audible from 270 to 360 deg and  peaking broadly in the direction
> of JA and BY etc.
> The sweeps are always going down in frequency and are very random in their
> timing, size and shape. Sorta sounds like a chorus of birds.   I see other
> man made stuff periodically but these sure don't look repetitive enough to
> be man made.  Meteor pings? receding so hence the downward shift from
> doppler??  Sure has me curious!
> I have made several spectral recordings and screen shots.  I'll upload them
> on Flickr:  http://flic.kr/s/aHsjTXqrqz
> 73 Don
> On Sun, Mar 2, 2014 at 2:28 AM, Rich Hallman - N7TR <rich at n7tr.com> wrote:
>> Anyone else hearing the mess on 10 meters that sounds like hundreds of
>> sweeping signals across the band?  Mainly coming from JA or BY?  Thought it
>> was something local, but only shows up when the band opens to JA and the
>> signals seem to peak when I point the beams to JA.
>> Really makes a mess of the band out here...
>> Rich N7TR
>> ex KI3V, N3AMK, WB3JOV
>> www.n7tr.com<http://www.n7tr.com>
>> http://www.qrz.com/db/N7TR
>> Telnet: dxc.n7tr.com N7TR DXCluster
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