De Grant Saviers, KZ1W...
Pieces of the 1939 tower were sold to benefit local charities.
Yes, I have one of those. They were sold to benefit Children's Hospital of
Pittsburgh. Pictures and background can be found at:
http://antiqueradio.org/kdka01.htm
73,
Cliff K3LL/6
-Original Message-
From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Grant
Saviers
Sent: Tuesday, September 10, 2013 3:27 PM
To: he...@vitelcom.net
Cc: topband@contesting.com
Subject: Re: Topband: and KDKA
I haven't heard the farmer story, but in the 60's lived 1000yds from the
KDKA radio tower in Allison Park, PA. That area is rough up and down small
hills, not much farming. KDKA/Westinghouse did experiment with 400kw short
wave at the old Saxonburg site. We didn't have any RF problems, but I was
QRT at that home.
My uncle George Saviers(SK), last call W2NPR, was an RF engineer at KDKA in
the 1930's. KDKA moved the transmitter to a site in Saxonburg and began
construction of a 718' Franklin antenna, center fed, 135deg per side. That
tower collapsed under construction due to the failure of a guy end potting
(molten zinc poured around flayed out wires into a reverse taper cavity
according to George). This tower was rebuilt by American Bridge on the same
site, but poor coverage caused them to dismantle it and move it in 1939 to
Allison Park, north of Pittsburgh, east of Rt 8. In 1994, after 55 years
service, the tower was replaced with a new 718' radiator fed as 90deg bottom
and 180deg top. Pieces of the 1939 tower were sold to benefit local
charities.
I collect KDKA radio stuff, so let me know if you have some looking for a
new home. My dad was also a briefly KDKA employee on the studio side pre
WWII and the two brothers roomed with Dave Garroway who started his
broadcasting career at KDKA.
Grant Saviers KZ1W
On 9/10/2013 12:32 PM, Herb Schoenbohm wrote:
There is an old story about KDKA's antenna system that was told to be
a long time ago. During WWII KDKA along with a frew other stations was
allowed to operate with 250,000 watts to the antenna system. A farmer
across from the KDKA's arrays was plagued by RF on everything
including hearing the station in his kitchen sink. A friend of his
was a ham and came up with the idea of tuning all the lamps in the
barn and house into a tuned circuit to resonate and provide a means of
lighting for free. It work so well that the farmer would brag about
it at a local tavern and was overheard by one of KDKA's engineers who
told the management who called the FCC Field offices. So the dispute
insued that the farmer claimed the radiation was on his land without
permission and he had rights to it no matter what. The whole matter
ended up in the DC Circuit with KDKA claiming it could not comply with
its required radiation pattern because the farmer was distorting
their pattern. The court came up with an unusual conclusion that
there was merit to both arguments. But since the station was required
to have a precise RF level at a measuring point the court offer the
farmer the option of leaving his lights on all the time or completely
turning the lights off permanently. Since the lights were constantly
flickering with modulation he chose the later solution if KDKA agreed
to pay for his lawyer.
I would be interested if anyone else has heard this story before and
if there is any veracity to it.
Herb Schoenbohm, KV4FZ
On 9/10/2013 1:34 PM, Bill Cromwell wrote:
Hi Ed,
The engineer at WTIC responded. That station does not have a Franklin
antenna but has series fed halfwave during the day and switches in
a second one at night, phased to change the radiation pattern. He
also told me that their 'sister station', KDKA in Pittsburgh, does
use a Franklin antenna. Some members near Pittsburgh may want to roll
by for a peek at it.
73,
Bill KU8H
On 09/06/2013 04:13 PM, Edwin Karl wrote:
There are several interesting articles if you Google Franklin Antenna
they are mechanically BIG and require feeding ingenuity (hams are
known for this feature ...) but are stacked verticals, note- phase
the top element to avoid cancellation.
If memory serves me right WTIC in Hartford phased two of these
puppies, but it's been a long time ...
73!
ed k0kl
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