[time-nuts] common mode loran comparisons

Alan Melia alan.melia at btinternet.com
Sat Jun 2 19:48:33 EDT 2007


Brooke I wonder if you have seen this page from a European friend of mine.
Markus Vester DF6NM
http://freenet-homepage.de/df6nm/LoranView/LoranView_Mar2006.htm
Alan Melia (UK)
G3NYK

----- Original Message -----
From: Brooke Clarke <brooke at pacific.net>
To: Discussion of precise time and frequency measurement
<time-nuts at febo.com>
Sent: 02 June 2007 21:39
Subject: Re: [time-nuts] common mode loran comparisons


> Hi Tom:
>
> NIST was monitoring 9940 not that long ago and I called them to ask about
the
> very poor numbers.  They said the monitoring was being done with an
antenna in
> Colorado!  So you're not missing much in that regard.
>
> I'm almost in the shadow of the Middletown station.  A few months ago they
were
> testing the new Data Channel, but are not now.  I've been thinking of
making up
> a PCB board for the Burhans LORAN-C receiver that was published some years
ago
> in a series of articles about LORAN-C.  It was small and has outputs that
work
> with micro controllers.  But the R.F. front end in the Austron 2100
receivers
> is far and away a much better way to go.  They have variable gain and
filtering.
>
> Once the modernization program is complete the timing will change from the
> current Master -> delay -> slave to one based on UTC.  That will enable
"all in
> view" LOARN-C receivers.
>
> Have Fun,
>
> Brooke Clarke





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