Re: LF: 137.7770 kHz

[<jrusgrove@comcast.net>]

Joe

Many times the rx antenna pattern is directed to the west. The 15 - 20 dB f/b can drop your sigs 
into the noise.
Jay W1VD  WD2XNS  WE2XGR/2




----- Original Message ----- 
From: <jcraig@mun.ca>
To: <rsgb_lf_group@blacksheep.org>
Sent: Thursday, June 06, 2013 6:14 AM
Subject: Re: LF: 137.7770 kHz


> Thanks Jay.
>
> I cant always see the sigs on your grabber and think perhaps
> the aerial does not radiate as well to the west.
>
> 73
> Joe
>
> On Wed, 5 Jun 2013, jrusgrove@comcast.net wrote:
>
> > Joe
> >
> > A look from closer in ... http://www.w1vd.com/grabber.html .
> >
> > Jay W1VD  WD2XNS  WE2XGR/2
> >
> >
> >
> >
> > ----- Original Message ----- From: <jcraig@mun.ca>
> > To: <rsgb_lf_group@blacksheep.org>
> > Sent: Wednesday, June 05, 2013 7:34 PM
> > Subject: Re: LF: 137.7770 kHz
> >
> >
> > > Hi Stefan, Markus and Jean Pierre F1AFJ (Grabber service),
> > >
> > > Thanks for the report, Stefan.  I am happy you have something nice to
> > > say about my sigs. Its good that they are reaching you when we are so
> > > close to the solstice.
> > >
> > > They were also quite strong around that time on Jean Pierre's grabber as
> > > well.
> > >
> > > As for Markus, he provided what I asked for  -- and now I must say his
> > > very critical report is most gratefully received. :-)  The problem seems to
> > > have disappeared after the 10 MHz input to the AD9851 was boosted with
> > > a BJT amp.  The original interface simply offset the 1.5 V p/p
> > > to 2.5V DC; the new one bosted it to 0-3V which is more in line with
> > > the specs for the DDS.  Perhaps the chirps and phase glitches were
> > > due to RF interfering with the weak 10 MHz input.
> > >
> > > I will be happy to try OP32 on another frequency soon.
> > >
> > > Thank-you very much for the good news and thanks all around.
> > > The TX is now again QRV on QRSS30. (2330 UTC)
> > >
> > > 73
> > > Joe
> > >
> > >
> > > On Wed, 5 Jun 2013, Markus Vester wrote:
> > >
> > > > Joe,
> > > >
> > > > ok, then here comes a particularly un-welcomed report ;-)
> > > >
> > > > The problem seems to be solved, and this morning your trace appeared perfectly focused in the 
> > > > narrow spectrogram. The frequency is 137777.0028, give or take a couple of 100 uHz. How did you 
> > > > fix it?
> > > > Would you like to try Op-32 again one of these days, preferably between 137.5 
> > > > and 137.6 kHz?
> > > >
> > > > Best 73,
> > > > Markus (DF6NM)
> > > >
> > > >
> > > > From: jcraig@mun.ca
> > > > Sent: Wednesday, June 05, 2013 8:36 PM
> > > > To: rsgb_lf_group@blacksheep.org
> > > > Subject: Re: LF: 137.7770 kHz
> > > >
> > > >
> > > > Hi Gary,
> > > >
> > > > Thank-you for the report, caputure and for running your FB grabber.
> > > > I look for sigs on your grabber quite frequently to check the TX.
> > > >
> > > > The TX will be on again tonight, (without chirps I hope).  Comments
> > > > about the phase (especially unfavourable criticism) are solicited and
> > > > shall be most welcomed.
> > > >
> > > > 450 watts, 3.2 amps to a 100m wire at 15m. QRSS30.
> > > >
> > > > 73
> > > > Joe VO1NA
> > > > ...
> > > This electronic communication is governed by the terms and conditions at
> > > http://www.mun.ca/cc/policies/electronic_communications_disclaimer_2012.php
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