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From: Dexter McIntyre W4DEX <dexter.mc@gmail.com>
Date: Mon, 1 Jan 2018 16:01:26 -0500
Message-ID: <CA+DS1V+-Scminsuus6H2UzFojzafqPbnmwCimz1t=YcvaMV7cA@mail.gmail.com>
To: rsgb_lf_group@blacksheep.org, Markus Vester <MarkusVester@aol.com>
Subject: Re: LF: 8269.9 kHz EbNaut 31/12/17
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On Mon, Jan 1, 2018 at 3:22 PM, Markus Vester <markusvester@aol.com> wrote:

>
> Regarding the transmitter phase steps: As opposed to SpecLab's 1pps lock,
> the phase of a signal generator or DDS synthesizer will only be maintained
> if it is running continuously without any interruptions. I'm wondering if
> the discontinuities might be caused by temporary GPS outages during the day
> (jamming from North Korea? ;-), or perhaps intentional manipulations of
> generator frequency e.g. while checking antenna tuning.
>
> Best 73,
> Markus
>
>
> Well I do love to multiplate the generator Markus :)   I have been
changing the frequency daily to check the tuning.  I had no idea that would
cause phase changes even as logical as that may seem.  Computer timing is
Dimension4 connected to tick.usno.navy.mil set at 49 min intervals.

No repeat transmission tonight but maybe tomorrow night.  Wed night is out
but maybe the same message again Thursday night I you wish.

Dex

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<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Mon, Jan 1, 2018 at 3:22 PM, Markus Vester <span dir=3D"ltr">&lt;<a =
href=3D"mailto:markusvester@aol.com" target=3D"_blank">markusvester@aol.com=
</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin=
:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style=3D"font=
-size:10pt;font-family:arial,helvetica,sans-serif;color:black"><div style=
=3D"color:black;font-family:arial,helvetica,sans-serif;font-size:10pt"><br>=
</div><div style=3D"color:black;font-family:arial,helvetica,sans-serif;font=
-size:10pt">Regarding the transmitter phase steps: As opposed to SpecLab=
9;s 1pps lock, the phase of a signal generator or DDS synthesizer will only=
 be maintained if it is running continuously without any interruptions. I&#=
39;m wondering if the discontinuities might be caused by temporary GPS outa=
ges during the day (jamming from North Korea? ;-), or perhaps intentional m=
anipulations of generator frequency e.g. while checking antenna tuning.</di=
v><div style=3D"color:black;font-family:arial,helvetica,sans-serif;font-siz=
e:10pt"><br>Best 73,<br>Markus=C2=A0 <br><br><br></div></div></blockquote><=
div>Well I do love to multiplate the generator Markus :)=C2=A0 =C2=A0I have=
 been changing the frequency daily to check the tuning.=C2=A0 I had no idea=
 that would cause phase changes even as logical as that may seem.=C2=A0 Com=
puter timing is Dimension4 connected to <a href=3D"http://tick.usno.navy.mi=
l">tick.usno.navy.mil</a> set at 49 min intervals.<br></div><div><br></div>=
<div>No repeat transmission tonight but maybe tomorrow night.=C2=A0 Wed nig=
ht is out but maybe the same message again Thursday night I you wish.=C2=A0=
=C2=A0</div><div><br></div><div>Dex</div></div>
</div></div>

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