Date: Fri, 28 Sep 2018 09:19:14 -0230 (NDT)
From: jcraig@mun.ca
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <030301d44ab0$de9e68d0$9bdb3a70$@comcast.net>
Message-ID: <Pine.LNX.4.64.1809280836240.30049@plato.ucs.mun.ca>
References: <165c86c815e-1ebc-e216@webjasstg-vaa54.srv.aolmail.net>
 <Pine.LNX.4.64.1809121126030.30659@plato.ucs.mun.ca>
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Subject: RE: LF: VO1NA 8270.0075 Hz
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Hi Jim, Markus and group,

Thanks for your explanations and Jim's effective height plot. This
was used to estimate the interval (07-22ut) for which the phase was 
inverted. Between 17 and 24 September, the phase was artificially
inverted over this interval using SL and a spectrum was extracted.
This continued to show the 2 peaks at +-12 uHz.

Perhaps I was being naive in expecting the doublet to vanish and
single peak to reappear or I was conpetent in using SL.

73,
Joe VO1NA

On Wed, 12 Sep 2018, hvanesce@comcast.net wrote:

> Hello Joe,
>
> Fine signal!
>
> "What would cause a 180 degree phase shift? Is there an XOR gate in the
> sky?"
>
> Might we say "D" Flip Flop (comparatively slow rise/fall).
>
> Attached is roughly how the effective height change of the D layer would
> change your signal's phase midnight to midnight UT.
>
> Markus's estimate of ~ 180 degrees is probably much more accurate than the
> attached.
>
> 73,
>
> Jim AA5BW
>
> -----Original Message-----
> From: owner-rsgb_lf_group@blacksheep.org
> [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of jcraig@mun.ca
> Sent: Wednesday, September 12, 2018 10:03 AM
> To: rsgb_lf_group@blacksheep.org
> Subject: Re: LF: VO1NA 8270.0075 Hz
>
> Hello Markus and Paul, group,
>
> That's a much better explaination than Doppler shift. What would cause a
> 180 degree phase shift? Is there an XOR gate in the sky.
>
> A few more dB will depend on getting some plastic machined.  Hopefully this
> will be before the end of winter.
>
> The TX is off since ~10ut due to lightning in the forecast.
>
> 73
> Joe VO1NA
>
> On Tue, 11 Sep 2018, Markus Vester wrote:
>
>> That continuous trace on Paul's spectrogram is impressive - great work!
>>
>> Attempting to extract a long spectrum from Paul's data creates a split
> peak at +-12 uHz from the center, suggesting a repeating near 180B0 phase
> difference between day and night.
>>
>> A close look on our Bavarian 31 uHz spectrograms seems to bring up some
> faint traces on the right frequency, but to be more sure we still need a few
> dB less noise, or more ERP.
>>
>> Best 73,
>> Markus (DF6NM)
>>
>>
>> -----UrsprC<ngliche Mitteilung-----
>> Von: jcraig <jcraig@mun.ca>
>> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
>> Verschickt: Mo, 10. Sept 2018 21:33
>> Betreff: Re: LF: VO1NA 8270.0075 Hz
>>
>>
>> I've not been mucking with the tx or tuning so perhaps Mother Nature
>> has provided an ERP improvement -- the wx has been quite dry recently.
>>
>> Thank-you for the report and the spectrogram service. It keeps me
>> entertained, especially since it seems impossible to see my own sigs
>> with a remote setup at distances greater than about 10 km.
>>
>> Been playing with vt tools and a cheap sound card.
>>
>> 73
>> Joe VO1NA
>>
>> On Sun, 9 Sep 2018, Paul Nicholson wrote:
>>
>> VO1NA from Newfoundland with 10uW must hold the record for the longest
>> running VLF transmission!
>>
>> Coming in well the last couple of days -
>>
>> http://78.46.38.217/fbins3.html#p=1536487200&b=280&s=sp&m=cardioid&w=r
>> &h=62&z1=0.34&z2=0.64&c=1
>>
>> An ERP improvement, or good propagation?
>>
>> --
>> Paul Nicholson
>> --
>>>
>>>
>>>
>