Any clues to what makes this signal on 160 Meters?

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  • Updated 2 years ago
On the left side of the pan, there is a signal that begins at a single point and then fans out much wider.  I have never seen this before and wonder what it might be.  This was this morning during my local  Indiana greyline time while trying to listen for W1AW/KH6.
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Ken - NM9P, Elmer

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  • curious

Posted 4 years ago

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Jim KJ7S

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At my station, there is a front loader pair, washer and dryer. When the washer is cycling, it sometimes produces a similar "leaf rake" type of pattern, generated by variabe speed controllers/motors. Look for that possibility in these, and other sources including newer furnaces etc. And if you are close ebough to another residence, may even get a little from them.
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Richard Clafton W4/G7EIX, Elmer

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Looks like the same pattern I get from our Trane Hyperion Handler when it fires up.   Variable speed motor.
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Dave - WB5NHL

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I have exactly the same pattern from my HVAC fan. What you are seeing is a motor coming up to speed.  Here is what I see
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John n0snx

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No worries Ken... now that you know.... Just turn your furnace off for the winter
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Steve - N5AC, VP Engineering

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Reminded me of this:



But I suspect the source phenomena are different.
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Ken - NM9P, Elmer

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You guys need a vacation!  hi hi...lol.
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John n0snx

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Good one Steve!!!!    Merry Christmas Ken   stay warm OK
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Rick - K7ET

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Showing your age there, Steve!  Hi, HI


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Philip KA4KOE

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MISSLE COMMAND!!! We are all older, lads.
(Edited)
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Richard Clafton W4/G7EIX, Elmer

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I think it was North Korea getting a little uppity about "The Interview"

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Bill-W9OL

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Yea, sure looks like Sony put an end to my chance of ever getting that cw card to fill my straight. modes.
Funny I have the two harder ones confirmed, just missed the CW.
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Philip KA4KOE

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I guess since the balloon just went up I won't get to enjoy my Maestro when it comes in!!! **sniff** **sniff**