Topband: and KDKA

[Herb Schoenbohm]

What some broadcaster won't do to get a signal their market.  There is 
an AM station out on pilings in Biscayne Bay or at least there once 
was.  I don't know how it could have survive Hurricane Andrew if it did. 
But the station and four tower array was put there to avoid interference 
to a protected Cuban clear frequency and still be able to blanket 
Miami.  The transmitter room was in a sealed container with positive air 
pressure to keep out salt air.  Engineers would arrive each day my boat 
to make the require on site inspection.  I think the power was brought 
out from shore with an undersea armored HVAC three phase cable.  
Remember at the time broadcasting was big business or as some in the 
industry used to call it "a license to steal."  But today with all the 
proliferation of FM and digital services there isn't much left for AM 
except News, Sports, Talk, and Information on the market price of pork 
bellies. Today anyone with a computer and an internet connection can be 
an instant broadcaster and be heard world wide.


Herb Schoenbohm, KV4FZ







On 9/16/2013 7:13 PM, Richard Fry wrote:
> With respect to U.S. AM broadcast stations, Bob k2euh wrote:
>
>> Another source of this kind of information is the AM Pattern Book, 
>> published by the National Radio Club. They just published a new 
>> edition this year.
>
> The "Check it Out" link on the NRC website shows U.S. AM station 
> locations and patterns for 560 kHz.  However, the physical location 
> they show for the transmit site of WIND (560 kHz) appears to be in 
> Illinois (see clip below), rather than at the location shown by the 
> FCC for the WIND array -- which is in Indiana, SE of the intersection 
> of I-94 and IN Hwy 912.  The FCC coordinates for WIND are 41° 33' 
> 54.00" N Latitude, 87° 25' 11.00" W Longitude (NAD 27).
>
> Didn't check for any other errors.
>
> http://s13.postimg.org/pcpbguj2b/WIND.gif
>
> RF
> _________________
> Topband Reflector