Irregular dashes 6940 1025 UTC 16 Aug 2016

[ChrisSmolinski]

First noted live at 1130z, but upon checking the SDR recording, I observe them starting at 1025z.
These are not regularly spaced dashes with a fixed period, but instead are intermittent. The signal is quite strong.
Gone by 1135z. But then more dashes heard starting 1213z, but with a long dead time between them.

I checked between 5 and 9 MHz and did not observe any other dashes, so I don't think this is one of the occasionally observed dasher networks. I am not sure of the source, whether hobbyist beacon, or some organization. Might be worth hanging out on 6940, or checking your SDR recordings.

Further checking back in the SDR recording, I see the dasher was here as early as 0254.

This is pure speculation... but this pattern fits perfectly with a beacon that transmits dits based on wind speed.

[ChrisSmolinski]

Now on 6943 this morning at 1242z, good signal.
Sorry, I had the radio in the wrong sideband. It is still on 6940, and still hearing occasional dashes at 1615z.

[ChrisSmolinski]

Heard again 21 August 2016 at 2025z with irregularly spaced dashes. I still suspect it is a hobbyist beacon, and could be transmitting dashes based on the wind speed.

[jFarley]

I have been looking for this since Chris first posted, w/o luck.  Noting them now around 2122z w/ a fair to good signal.

[Kilokat7]

Good copy here @ 0116z, irregularly spaced as noted above.

[Token]

I have been hearing these off and on since August 11.  They are never strong here, never heard during broad daylight, but often start fading in about an hour and a half before sundown.  The dashes appear to be about 0.295 second long, and the rate is very irregular, sometimes many seconds between each.

(edit) And at 0205 I have it weak but copiable on the Twente SDR in the Netherlands.

T!

[MDK2]

Is this transmitting in AM mode?

EDIT Thanks T! for the reply and the tip. Copying on utwente right now.

[Token]

Is this transmitting in AM mode?

It is, as near as I can tell, unmodulated CW, dashes, just like Morse Code, but only sending one length element, over and over, with irregular spacing, sometimes over a minute between dashes, sometimes only a few seconds.  Occasionally it will send 4 closely spaced dashes.

T!

[ChrisSmolinski]

I noticed this on my overnight SDR recording, transmitting as usual with random dashes (or dits, depending on your point of view).
Last observed at 0910, and I do not notice it on the air today.

[Token]

This appears back at 0430 UTC on Nov 26 2016.

T!

[ChrisSmolinski]

Noted here first at 0329Z 26 Nov 2016 on the SDR recording, sending actual CW before sending the dashes.  Token decoded the CW as:
37 87 30 37 87 30 37 87 30 37 87 30 WKN WKN WKN AR

[Token]

Looking back through my logs I find the first log entry for this dasher on Aug 11, 2016.  The first recording I find in my server is Aug 12, 2016.  But there is a very similar signal recorded April 28, 2016, that could be related.

T!