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But the link I posted gives the location of all the antennas of AM
stations in Los Angeles on one page, look again.

gl

On Dec 6, 8:12�am, Lu Abel  wrote:
> Before I wrote my previous email I did get as far as finding a listing
> such as this. � But this one merely gives a list of stations in a
> particular area. � To get the lat/long of their antennas, one would have
> to click on each entry (and then another click or two) to get the
> lat/long for one particular station. � One would then have to manually
> copy that information into a separate document to make a list of the
> lat/longs of all stations in a particular area.
>
> Perhaps I misunderstood, but I thought your earlier post claimed one
> could get a lat/long /list /directly from the FCC site.
>
> Lu
>
> Gary LaPook wrote:
> > Here is an example, all the Los Angeles AM stations
>
> >http://www.fcc.gov/fcc-bin/amq?state=CA&call=&arn=&city=los+angeles&f...
>
> > gl
>
> > Lu Abel wrote:
> >> Do you have a URL for this list of lat/long for US stations? � I've
> >> searched the FCC site and the only thing I can find is something
> >> where you have to identify each individual station and after a few
> >> clicks you can get its antenna location. � And then it's in NAD27
> >> coordinates!
>
> >> Thanks
>
> >> Apache Runner wrote:
> >>> Although this is a completely out-of-the-box idea, I've been working
> >>> on an AM radio receiver/direction finder for fun. � �The FCC
> >>> publishes the lat/long for all stations in the US. �
>
> >>> I haven't seen a variable capacitor in ages, but managed to find
> >>> some beauties online, and am making my own antenna. � �Right now, I
> >>> think I can get an accuracy of maybe 3 degrees, but that's just a
> >>> guess. �
>
> >>> I'll post something when I have it up and running.
>
> >>> On Sat, Dec 5, 2009 at 3:03 AM, glap...@pacbell.net
> >>>   >>> > wrote:
>
> >>> � � I know we have some commercial air pilots on the list and was
> >>> � � wondering if
> >>> � � they thought an aircraft RDF unit could be easily mounted on a boat.
> >>> � � The
> >>> � � aircraft industry seems to be the only ones making small units these
> >>> � � days.
> >>> � � I might go ocean cruising with a friend who is presently re-fitting
> >>> � � his
> >>> � � boat, and I am a big fan of redundancy, and thought this might be a
> >>> � � workable
> >>> � � solution.
>
> >>> � � ---------------------------------------------------------------------------
>
> >>> � � An ADF will work on a boat but they aren't cheap, the readout is
> >>> � � only
> >>> � � marked every 5 degrees and the antenna has to be mounted
> >>> � � somewhere. If
> >>> � � you want RDF capability just by an inexpensive digitally tuned
> >>> � � portable radio that covers the LF band such as the Grundig G5 which
> >>> � � also covers HF and has SSB capability so you can get your time
> >>> � � signals �too. These all have ferrite rod internal antennas which are
> >>> � � highly directional. Get one and tune a distant station. Then orient
> >>> � � the radio in different attitudes and rotate the radio until you
> >>> � � get a
> >>> � � null which will let you know the orientation of the ferrite rod.
> >>> � � Then
> >>> � � you can use the edge of the radio to indicate the direction to the
> >>> � � station. Place it on top of a universal plotting sheet to use as a
> >>> � � compass rose placed on a table or nav station desk and rotate the
> >>> � � radio to get a null. You may want to make a calibration table
> >>> � � for it.
> >>> � � Don't worry about the lack of a sense antenna which are really only
> >>> � � needed by an ADF since a human can easily determine which is the
> >>> � � correct bearing, the 180 degree ambiguity, which is a big
> >>> � � problem for
> >>> � � an ADF, is not a problem for a human.
>
> >>> � � gl
>
> >>> � � On Dec 4, 11:48 am, Bruce Hamilton  >>> � � > wrote:
> >>> � � > If GPS goes dark, Jeremy will be in a great position to
> >>> � � negotiate a salary
> >>> � � > raise.
>
> >>> � � > �I had great hope for e-loran as going to a single system with
> >>> � � no redundancy
> >>> � � > seems risky at best. Even when Loran C coverage was poor, even the
> >>> � � > information from a single chain would give you something to
> >>> � � work with. In
> >>> � � > the middle of Lake Superior, coverage was always spotty, and
> >>> � � on the East
> >>> � � > Coast of Canada we would often be on a single chain only 50
> >>> � � miles off the
> >>> � � > coast.
>
> >>> � � > Jeremy, do you still have a working RDF? �I used them on
> >>> � � aircraft all the
> >>> � � > time, but must admit the one on the first ship I was on was
> >>> � � not often used
> >>> � � > and this was pre-gps. I have a working portable (Ray
> >>> � � Jefferson) RDF that I
> >>> � � > am going to try in a friend's boat. It is a pity that the
> >>> � � technology got
> >>> � � > left behind in the GPS age as the modern RDF's are apparently
> >>> � � very good and
> >>> � � > very quick. The signal from the multiple antennas is instantly
> >>> � � processed and
> >>> � � > you get an bearing read out. �The Canadian Coast Guard use
> >>> � � them to get
> >>> � � > instant fixes from distress signals in pre-GMDSS days. They
> >>> � � have remote
> >>> � � > stations they use to get a cross bearings from. No GPS required.
>
> >>> � � > I know we have some commercial air pilots on the list and was
> >>> � � wondering if
> >>> � � > they thought an aircraft RDF unit could be easily mounted on a
> >>> � � boat. The
> >>> � � > aircraft industry seems to be the only ones making small units
> >>> � � these days.
> >>> � � > I might go ocean cruising with a friend who is presently
> >>> � � re-fitting his
> >>> � � > boat, and I am a big fan of redundancy, and thought this might
> >>> � � be a workable
> >>> � � > solution.
>
> >>> � � > A fine page of old RDF units
> >>> � � 
>
> >>> � � > On Fri, Dec 4, 2009 at 8:09 AM,  >>> � � > wrote:
> >>> � � > > �I read the following on a maritime forum site. �Looks like
> >>> � � LORAN-C
> >>> � � > > systems run by the US will be shut down sooner than we thought.
> >>> � � > > -----------------------------
> >>> � � > > The US Coast Guard released an internal message advising of
> >>> � � the imminent
> >>> � � > > termination of the long range aid to navigation Loran-C.
> >>> � � Current plans call
> >>> � � > > for the termination process to commence on 4 January 2010.
> >>> � � The process is
> >>> � � > > expected to take several months. ALCOAST
> >>> � � 675/09(11/25/09).
> >>> � � > > *Note: This will mark the end of an era that started during
> >>> � � World War II.
> >>> � � > > The Loran system has improved greatly over the years and was
> >>> � � on the edge of
> >>> � � > > yet another advance: to enhanced Loran (eLoran). It is
> >>> � � unclear how other
> >>> � � > > nations, which operate their own independent Loran-C
> >>> � � systems, will react to
> >>> � � > > this development. *
> >>> � � > > Courtesy: Bryant�s Maritime Blog � 1 December
> >>> � � 2009
> >>> � � > > ------------------------------
>
> >>> � � > > Not that this will affect many large ships. �My ship hasn't
> >>> � � had LORAN
> >>> � � > > capabilities since the antenna broke 3 years ago and the
> >>> � � captain was too
> >>> � � > > afraid to order a new antenna. �Most merchant ships are
> >>> � � utterly dependent on
> >>> � � > > GPS at this point, and would have a tough time remembering
> >>> � � how to use the
> >>> � � > > sextant if it came down to that point. �It will only get
> >>> � � worse when the
> >>> � � > > younger generations take command, having never known a time
> >>> � � without GPS.
>
> >>> � � > > JCA
>
> >>> � � > > --
> >>> � � > > NavList message boards:www.fer3.com/arc
> >>> � � 
> >>> � � > > Or post by email to: NavList@fer3.com
> >>> � � 
> >>> � � > > To , email NavList+@fer3.com
> >>> � �  >>> � � >
>
> >>> � � --
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> >>> � � 
> >>> � � To , email NavList+@fer3.com
> >>> � � 
>
> >>> --
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> >> --
> >> NavList message boards:www.fer3.com/arc
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> >> To , email NavList+@fer3.com
>
> > --
> > NavList message boards:www.fer3.com/arc
> > Or post by email to: NavList@fer3.com
> > To , email NavList+@fer3.com
>
>

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