[time-nuts] LORAN-C antenna

[Didier Juges]

Well, Shalimar is pretty big, when you want to cross it by foot... Would
probably take an hour from end to end.

Next time you are in the area, let me know :-)

I have tried to listen with my HP 3586 and my 80 meter antenna (which is
actually about 20m long and 50 feet up at one end, 30 feet up at the other
end), but I have not heard or seen (on the scope) anything like a time
signal. Tonight, what I hear sounds more like farm equipment in the harvest
season.

Didier KO4BB 

> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Daun Yeagley
> Sent: Monday, November 12, 2007 7:51 PM
> To: 'Discussion of precise time and frequency measurement'
> Subject: Re: [time-nuts] LORAN-C antenna
> 
> Didier, that ought to be just about in your back yard!! I did 
> some consulting for one of the Dothan TV stations last year 
> (what's amazing is that the transmitter is actually in 
> Florida!). Anyway, on my way there from a military reunion in 
> Texas, we stopped in Shalimar to visit my old roommate that 
> didn't make the reunion. If I had known then where you live, 
> I would have stopped by to see you... He's probably about a 
> mile from your place!
> 
> Daun 
> 
> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Mike Niswonger
> Sent: Monday, November 12, 2007 7:59 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] LORAN-C antenna
> 
> ); SAEximRunCond expanded to false
> Errors-To: time-nuts-bounces+n8asb=fluffles.febo.com at febo.com RETRY
> 
> DJ,
> Actually, you are closest to the Malone, FL LORAN, about 30 
> miles due south of Dothan, AL. They run 800kW into a 700 foot 
> monopole array. For more info see 
> http://www.uscg.mil/d8/lorstamalone/default.asp .
> 
> --Mike Niswonger, W4CMN
> 
> Didier Juges wrote:
> > Speaking of Loran, I have an old Loran receiver (origin 
> forgotten) and 
> > no antenna.
> >
> > Is it possible to build a Loran antenna?
> >
> > I understand Loran uses narrow pulses of 100 kHz, so the 
> antenna must 
> > have sufficient bandwidth to let the front edge of the pulse go 
> > undistorted. On the other hand, there are lots of spurious 
> signals at 
> > these frequencies, so some selectivity is probably 
> necessary. I am not 
> > sure what design would be best. I have made ferrite bar 
> antennas for 
> > other long-wave reception, but it was narrow band, so I am 
> not sure these designs would work.
> >
> > I live on the Gulf coast of North-West Florida, and therefore I 
> > believe I am not too far from a Loran station, so I probably do not 
> > need extreme sensitivity.
> >
> > Any suggestion welcome.
> >
> > Thanks in advance,
> >
> > Didier KO4BB
> >
> >
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> >
> >   
> 
> 
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