Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org)
Message-ID: <BAY124-F40A708D8C5B4174051306FCF650@phx.gbl>
In-Reply-To: <Pine.OSF.4.56.0704041950260.16564@plato.ucs.mun.ca>
From: "Laurence KL1X" <hellozerohellozero@hotmail.com>
To: rsgb_lf_group@blacksheep.org
Bcc: 
Date: Wed, 04 Apr 2007 16:16:40 -0800
Mime-Version: 1.0
Subject: Re: LF: dcf39
Content-Type: text/plain; format=flowed
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
Status: O

Thanks Joe - up till today (or yesterday) Ive always taken DCF39 as a 
relative Gold standard for calibrating against globally.

Conditions look like they are coming up a bit - Budapest was just about 
audible level this morning (0500 local) under the hubbub. Its interesting 
using the SDR IQ at looking at some 190Khz of bandwidth - seems as though 
137-138KHz is one of the most noisest spots from local in building and plc 
noize - its about 12 dB better at 135.5. but still only in the -80's, no 
wonder I dont hear/see much unless its strong.


Day Long term stability test (at LF) shows the "IQ" doesnt budge at dot120 
at 20 deg room temp I can see. I have to knock the IF gain back a bit to 
12dB at night otherwise I get clipping, and putting the NB on to any level 
brings up Loran audibly (its strong here at around -55dBm). First few days 
of operation and comparison against R75 with Argo on 500 and 137Khz shows 
comparable results under my operating conditions. I rather like it, once you 
learn how to drive it..


Laurence KL 1 X /BY4 Shanghai
Misty 12degC


>From: Joe Craig <jcraig@mun.ca>
>Reply-To: rsgb_lf_group@blacksheep.org
>To: rsgb_lf_group@blacksheep.org
>Subject: Re: LF: dcf39
>Date: Wed, 4 Apr 2007 19:51:49 -0230 (NDT)
>
>Hi Laurence,
>
>Yes, it appears as if DFX39 has drifted a bit here as well.
>
>Cheers
>Joe VO1NA
>
>On Wed, 4 Apr 2007, Laurence KL1X wrote:
>
> >
> > Good morning - can anyone verify that dcf39 is about 0.4Hz or so  high 
>of
> > its normal 138.83 "mark" carrier freq at this time? I was calibrating 
>the
> > SDR and noticed a difference between Budapest and
> > DCF39 normal argo plots and thought it  was an oddity with the new rx 
>but on
> > checking with the  R75 I get the same results -
> >
> > thanks
> >
> > Laurence KL1X
> >
> > _________________________________________________________________
> > Can�t afford to quit your job? � Earn your AS, BS, or MS degree online 
>in 1
> > year.
> > 
>http://www.classesusa.com/clickcount.cfm?id=866145&goto=http%3A%2F%2Fwww.classesusa.com%2Ffeaturedschools%2Fonlinedegreesmp%2Fform-dyn1.html%3Fsplovr%3D866143
> >
> >
> >
>

_________________________________________________________________
Get a FREE Web site, company branded e-mail and more from Microsoft Office 
Live! http://clk.atdmt.com/MRT/go/mcrssaub0050001411mrt/direct/01/