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<DIV>
<DIV>here is some quickie notes on K.D. Smith from the museum's
memorial on him.</DIV>
<DIV><A
href="http://www.smecc.org/k_d__smith.htm">http://www.smecc.org/k_d__smith.htm</A>
is a bunch on him. Interesting guy.</DIV>
<DIV> </DIV>
<DIV>these are the type of people I sought out as friends when I was
a kid In Palos Verdes there were lots of people in electronics and
aerospace on the hill there. but over on the other coast you have the bell
labs.... a place I only could dream of visiting..</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>... gee I was a pest....</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>
<P><FONT
size=2>1946-1947<!-- Generation of PM publication page 53 --></FONT></P>
<P><FONT size=2>K.D. Smith at Bell Laboratories, Cont.<BR>K.D. Smith was project
engineer on the TE-1 and TE-2 short haul microwave relay system intended for
Television studio to transmitter site service; and for repeatered routes of 2 to
3 links. The TE-1 system operated between 3.7 and 4.2 Gigahertz.</FONT></P>
<P><FONT size=2>An excellent explanation of this system can be found in a
publication entitled "A New Microwave Television System" that K.D. Smith
co-authored with J.F. Wentz. This talk was presented at the winter meeting of
the AIEE in January 1947, and the paper was printed in the Transactions for the
AIEE Volume 66, pages 465-470 in 1947.</FONT></P>
<P><FONT size=2>For an in depth look at what it was like to set up the first
test between Hollywood and Mount Wilson, we have on file K.D. Smith's Field
notes of this event. It chronicles the events from unboxing the equipment
through the successes and problems that were encountered!</FONT></P>
<P><FONT size=2>1948-1951</FONT></P>
<P><FONT size=2>K.D. Smith was the circuit design supervisor on the TD-2
Microwave Radio Relay System. The TD-2 was the backbone trans-continental
microwave relay system carrying network television programming as well as long
distance telephone traffic. Long before communications satellites were a
practical reality, the TD-2 system was what brought us the television shows we
so much enjoyed from the network studios in New York, and gave us enough long
distance telephone connections to talk to Aunt Martha back on the Eastern
seaboard during Christmas day!</FONT></P>
<P><FONT size=2>K.D. Smith's specific responsibility was the F.M. terminal
systems used in the TD-2. The F.M. terminal converted video signals to a 70 MHz
frequency modulated signal that modulated the microwave transmitter circuit that
generated the output signal of the microwave relay link.</FONT></P>
<P><FONT size=2>K.D. Smith standing in front of a Radar console during the
World<BR>Excellent reference on the TD-2 system can be found in "The TD-2
Microwave Radio Relay System" by A.A. Roetken, K.D. Smith and R.W. Friis. This
article was published in the BELL SYSTEM TECHNICAL JOURNAL, Volume 30 (part 2)
Pages 1041-1077 on October 1951.</FONT></P>
<P><FONT size=2>An interesting side light is that this publication was one of
the three selected from the BELL SYSTEM TECHNICAL JOURNAL to be preserved until
the year 6939 AD, in the Westinghouse TIME CAPSULE II. This time capsule
contains a panorama of what was then current human activities. The capsule was
buried alongside TIME CAPSULE I. Both capsules reside under ground at the site
of the two New York world's fair. TIME CAPSULE I was buried in 1938 and the
second was buried in 1965. This historic time capsule is discussed in BELL LABS
NEWS, May 15 1965. This newsletter as well as the publication on TD-2 that K.D.
Smith co-authored is on file at the museum.</FONT></P>
<P><FONT size=2>Another excellent reference on the TD-2 system is contained in
THE TD-2 STORY, a book that was authored by A.C. Dickieson, and presented to the
museum by him. Both publications, as well as the time capsule story in the BELL
LABS NEWS present an excellent view of the TD-2 system for the person with the
curious mind!</FONT></P>
<P><FONT size=2>The TD-2 system and its steel and concrete towers was a
communications marvel! It deserves a large article here in VINTAGE ELECTRICS in
the near future.</FONT></P>
<P><FONT size=2>Rumor whispers the demise of the TD-2 system, as widespread use
of communications satellites is now a reality in our everyday existence. The
large "wide bandwidth" fiber optic networks that have been created also
supplement the satellites for long distance communication involving television
transmission and long distance telephone calls.</FONT></P>
<P><FONT size=2>TD-2 indeed enriched our lives, and let us take a moment to
thank K.D. Smith and all the other developers that made this communications
marvel possible.</FONT></P></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>In a message dated 4/28/2009 8:22:27 A.M. US Mountain Standard Time,
park@videopark.com writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT
style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size=2>From the
Ampex list I posted about AT&T Long Lines:
<DIV><BR></DIV>
<DIV>AT&T provided "Long Lines" microwave and coaxial cable. Before 1957,
kines were used for delay, quad tape after that.<BR><BR>At one time Long Lines
provided all the television distribution for all the television networks.
Prior to television over the microwave radio it was provided by Long Lines via
coaxial cable on B2 (Black & White) terminal equipment and later on B3
(color) terminal equipment." - Roy Juch.</DIV></FONT></BLOCKQUOTE></DIV>
<DIV></DIV>
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