[Lowfer] 153 khz

Steve Dove dsp at hifidelity.com
Fri Apr 3 18:26:16 EDT 2015


Hi John, Dex,

Hello John!  NAB?

Eyeballing against Droitwich (no Rubidium, no GPS, no singing, 
no dancing, no falling over) I make Algeria 240mHz low, and 
the Mystery Meat thing 400mHz low of 153kHz. Ish.

Just to see if we're talking about the same things...  doesn't 
look like it.

         Cheers,

                  Steve


On 4/3/2015 8:30 PM, John Andrews wrote:
> I'm pretty sure that the daytime signal is dead on frequency.
> Will look at the Algerian version tonight. The carrier dropped
> out for a while around 1910Z. It's 35 dB out of the noise
> right now, and audible in a 250 Hz BW.
>
> JA
>
> On 4/3/2015 4:21 PM, Dexter McIntyre W4DEX wrote:
>> Steve Dove wrote:
>>> Hi Dex,
>>>
>>> Long time no!  Just spelunked through a bunch of snapshots
>>> from last
>>> night/today.
>>>
>>> I had two signals at 153, one significantly bigger than the
>>> other, and
>>> about 160mHz lower.  Three things:
>>> 1) None of the usual EU Longwave suspects were as strong as
>>> this,
>>> being comparable to the lesser signal,
>>> 2) The weaker signal winked out when it was supposed to at
>>> dawn, and
>>> 3) The biggie, although much weaker and wafting in and out,
>>> is still
>>> there even now (mid-afternoon).
>>>
>>> I don't know what it is, other than not Algerian.
>> Steve,
>>
>> So the mystery continues.  I haven't calibrated to make an
>> exact
>> frequency measurement but I also see a slight difference
>> between the two
>> signals.  Algeria is the strongest signal here.  If I
>> understand what
>> you said you see the opposite?  I've adjusted the SpecLab
>> plot to show a
>> full day:
>>
>> https://dl.dropboxusercontent.com/u/15095569/w4dex/grabber.jpg
>>
>> Thanks for your input.
>>
>> Dex
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