[Lowfer] FW: New beacon & WMS off tonight

[Bill Ashlock]

From: ashlockw at hotmail.com
To: k5wms at centurytel.net
Subject: RE: [Lowfer] New beacon & WMS off tonight
Date: Fri, 3 Jun 2011 18:01:41 -0400








Paul,

What is the Vcc to the final? With this value and the turns ratio I can give you and idea how efficient the loop is running (assuming 1w DC input to the final). BTW #12 is a my suggested gauge for a first loop because it is relatively easy to put up, connect to, and it should put out a respectable signal. Suggest RG-8 for the next step once the bugs are worked out and some confidence is gained.

Bill

> Date: Fri, 3 Jun 2011 13:08:54 +0000
> From: k5wms at centurytel.net
> To: jrusgrove at comcast.net; lowfer at mailman.qth.net
> Subject: Re: [Lowfer] New beacon & WMS off tonight
> 
> Bill and Jay,
> Conductor size is #12awg wire, core material was from crt monitor cord( 
> couldnt find recommended material in Digikey) turns ratio is 5:1 or 6:1. 
> 
> I got a copy at about 0500 local time -60db, background noise is about 
> -63 to --66db on Spectran. No copy with ARGO. My location is very noisy 
> lately, I haven't had any luck copying the Hifers like JD and Lawrence 
> have been doing this past couple of weeks. 
> 
> Next step is to find correct material for torroid and trim it up. 
> Thanks for the input Jay we didnt know what to expect. I suppose I 
> could take my heathkit q-meter and measure it or signal gen and rf 
> probe and try to measure Q. I need to restock ferrite cores for other 
> projects so I will order correct core this week. 
> 
> My prelimanary observation is the loop is much easier to get going than 
> my verticle was. I must rethink that comment about broad tuning. We had 
> about 6500pf fixed cap and a 500pf variable so the perception of 
> broadness may be incorrect. There was a definite peak. 
> 
> I reset my Spectran and am now getting better copy at 0800cdt, we 
> expected daytime copy at this distance. 
> 
> Thaks I will keep you posted. 
> 
> Paul k5wms
> 
> Quoting jrusgrove at comcast.net:
> > Paul
> >
> > What size is the conductor? Tuning to resonance should be quite sharp as with
> > decent sized conductor
> > the Q of the antenna will be well over 100. What ferrite material are 
> > you using
> > in the transformer
> > and what is the turns ratio?
> >
> > I ran a 200' perimeter loop on beacon VD (185.301) for a few years ... it was
> > constructed from mil
> > spec RG-11 with full copper braid. It was hung between two 110' towers in a
> > 'diamond' configuration
> > (90 degree angle toward ground). Used an FB-1020 sized sleeve core 
> > (will have to
> > verify ferrite mix)
> > with a 7 or 8 : 1 turns ratio. 7 or 8 turns to the transmitter and 
> > the RG-11 a
> > single pass through
> > the core. The series tuning capacitor was made up with a bunch of DM15 silver
> > micas in parallel with
> > a small variable cap as the 'tweaker'. 
> >
> > Let me know if you have any questions. I'll dig out my notes. Look forward to
> > having a go at
> > reception ... when static subsides ... 
> >
> > Jay
> >
> > ----- Original Message -----
> > From: "Paul Daulton" <k5wms at centurytel.net>
> > To: <jrusgrove at comcast.net>
> > Sent: Thursday, June 02, 2011 8:46 PM
> > Subject: Re: [Lowfer] New beacon & WMS off tonight
> >
> >
> > > Jay it is ne/sw.  Estimate 50  airline miles from me. I cant see it yet. We
> > need to take good rec
> > > up there and see if we can see WMS. 
> > > Loop was very easy to install. Measurement by AADE LCM meter was 
> > 86uh. Tuning
> > very broad, not
> > > critical at all. Tx transmitter was tested here and at Daves house 
> > with 100uh
> > coil. final
> > > resonance was with 3x 2000pf plus 500pf plus 220pf= 6720pf total
> > >
> > > May be this fall before we can get reports but at least it is up 
> > and running. 
> > > What kind of daytime/night time propagation do you see on WM 
> > signals , at what
> > distance?
> > >
> > > Paul
> > >
> > > Quoting jrusgrove at comcast.net:
> > >> Paul
> > >>
> > >> In what direction is the loop pointed?
> > >>
> > >> Jay
> > >>
> > >> ----- Original Message -----
> > >> From: "Paul Daulton" <k5wms at centurytel.net>
> > >> To: <lowfer at mailman.qth.net>
> > >> Sent: Thursday, June 02, 2011 7:23 PM
> > >> Subject: [Lowfer] New beacon & WMS off tonight
> > >>
> > >>
> > >> >A new beacon was installed at Greers Ferry Lake near Heber Springs
> > >> AR today. ID
> > >> is HSA qrss30 cw,
> > >> >freq is
> > >> > 189.501 khz operating 24/7. Antenna is Ashlock loop. Beacon 
> > belongs to Dave
> > >> Philipps WA5WKO. 
> > >> >
> > >> > I am shutting WMS down tonight to listen for HSA. Thanks
> > >> >
> > >> > Paul Daulton K5WMS
> > >> > beacon WMS 185.302 khz qrss30/slow 24/7
> > >> > Jacksonville,Ar 72076
> > >> > em34wu
> > >> > ______________________________________________________________
> > >> > Lowfer mailing list
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> > >> > Help: http://mailman.qth.net/mmfaq.htm
> > >> > Post: mailto:Lowfer at mailman.qth.net
> > >> >
> > >> > This list hosted by: http://www.qsl.net
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> > >>
> > >
> > > Paul Daulton K5WMS
> > > beacon WMS 185.302 khz qrss30/slow 24/7
> > > Jacksonville,Ar 72076
> > > em34wu
> > >
> >
> 
> Paul Daulton K5WMS
> beacon WMS 185.302 khz qrss30/slow 24/7
> Jacksonville,Ar 72076
> em34wu
> 
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