[Lowfer] WEB Received in Oklahoma

[Jay Rusgrove]

John

Thanks for all the info. I'll look up the info in the Lowdown.

Jay

----- Original Message ----- 
From: "John Reed" <jreed@alum.mit.edu>
To: "lowfer" <lowfer@mailman.qth.net>
Sent: Sunday, October 19, 2003 6:57 PM
Subject: Re: [Lowfer] WEB Received in Oklahoma


>
> ----- Original Message -----
> From: "Jay Rusgrove" <JRusgrove@comcast.net>
> To: <jreed@alum.mit.edu>
> Sent: Sunday, October 19, 2003 10:25 AM
> Subject: Re: [Lowfer] WEB Received in Oklahoma
>
>
>
> > Am also using an RF-590 (as well as several HP 3586Cs and an R-75) here
> but
> > without the noise blanker. From your post it sounds like the noise
blanker
> > does a good job for you. Wonder  if you might elaborate a bit more on
what
> > you've found with/without the blanker and the noise situation at you
> > location.
> >
> > Jay Rusgrove, W1VD
>
> Without the blanker, I wouldn't be able to receive much of anything.
> There's a 120 Hz spike train here that comes in through the power system.
> I've looked in our house for the source, but it is outside.  Sometimes it
is
> really strong, and other times weaker.  It seems to be weakest during
early
> morinings, but even then interferes with reception greatly.
>
> Now, on the blanker - I spent a long time trying various blankers,
> synchronous and asynchronous.  Asynchronous is the way to go.  With
> synchronous you spend all your time adjusting the controls.  Some of these
> were written up in past issues of the Lowdown.  I thought briefly about
> getting one from Harris since this is an add-on.  However the price
quickly
> made me forget about that option.  They wanted $2000 for the plug-in board
> and documentation.  I ended up building one for the Harris.  See the
> Lowdown, June 2001 and a follow up in Sept, 2002.
>
> John Reed
>
> >
> > ----- Original Message -----
> > From: "John Reed" <jreed@alum.mit.edu>
> > To: "lowfer" <lowfer@mailman.qth.net>
> > Sent: Sunday, October 19, 2003 10:12 AM
> > Subject: [Lowfer] WEB Received in Oklahoma
> >
> >
> > This morning I was able to copy WEB here in Shawnee, OK.  I started
> hearing
> > it at 1054 UTC and it faded into noise at 1115.  Frequency was 189949.8
> Hz.
> > Reception was with 1 meter homebrew whip antenna, Harris RF-590 receiver
> > with noise blanker (absolutely necessary) and HP 3561A signal analyzer.
> > Reception bandwidth was .2 Hz on a 20 Hz span around the BFO frequency.
> >
> > I timed the rise and fall of the signal's spectrum line, then converted
to
> > dits and dahs.  Sure enough, it was WEB.  UWL was also seen this morning
> but
> > much stronger.
> >
> > John Reed
> >
> >
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