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In Case You Have Forgotten Signal 1970 By Harold Zahl |
This is another in a series of short historical reminiscences
by Dr. Zahl. The tale is similar to those appearing in the author's
book,
ELECTRONS AWAY...Or Tales of a Governmant Scientist
Vantage Press, New York, N.Y.
Items of Interest:
The first wireless demo in the United States
in 1899 at Twin Lights
The original Marconi tower, now a memorial on
Marconi Road, a witness to much history
The wireless masts and towers of
yesteryear, some 400 foot tall
E. Armstrong and D. Sarnoff test regerative
circuit in 1914 on a cold night and radio is changed forever
The King's College gets its start...
Who was Camp Evans really named after? 1) Grand
Wizard Evans, 2) Professor Evans of The King's College, or 3) Wesley Evans?
The Army was going to build 900 foot long radar
lab buildingd, but...
The birth of the 'H' building and 'special
antenna shelters'
Opps, hope the German bombers do not visit...
Who says we have to change all the signs...
The Army Mystery Ray
The radar demo for Generals George C. Marshall and
'Hap' Arnold
Dr. Zahl's references
| by Dr. Harold A. Zahl
AT THE TURN OF THE CENTURY, the newly formed Marconi Wireless
Telegraph Company of America, with its home in England, purchased a 93-acre
farm from a New Jersey resident by the name of Mr. Woolley. The farm,
located in Belmar, New Jersey, was to be the site of their receiver equipment
for commercial transatlantic radio operation. Advance publicity of
this new enterprise appeared in Volume I of the new magazine, The Wireless
World, April, 1913-March, 1914. Under the title of "New Jersey
Station," the article concludes, "At Belmar, a large force is required
to handle the operating work, and much will be done to make the residential
quarters attractive to live in. Summer boating on Shark River is
a pastime which is looked forward to with pleasure, while tennis and outdoor
sport will be encourages; in fact, a happy little community will soon be
thriving in this neighborhood."
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Upper amd lower photos: now Headquarters of the Evans Area and also of the Electronic Warfare and Combat Surveillance laboratories. (Photo credit: Volume II, The Wireless World) |
| ians, industrial representatives, the acedemic world and foreign visitors.
The first part of my story involves turning back some calendar pages and
recording history made before the Army moved in.
An Era of Yesteryear
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word that can describe them -- while the private sitting-rooms will
be a delight to all who can afford this added luxury.
And I quote further, "Already Belmar has become a "sight" for touring motorists, who avail themselves of the opportunity to spend a quiet hour also at the hotel, or to wander through the beautiful country with its hills covered by thick woods of laurel, birch, oak, maple and pine trees: or, again, to wander through the undergrowth in search of spoils from the wild grape vines, huckleberries, mulberries and blackberries. Spinney and coppice, wood and open meadow-land offer of their abundance, and the countryside teams with wild life. To any with a bent for natural history there is an unending source of amusement, while to those whom sport claims for devotees there is an equally wide range of interest. Fishing and shooting and, what is perhaps the most sportsmanlike of sport, long tramps over the miles of open country with a chance of bringing home a mixed bag at the end of the day. |
| "The earth has many pleasant places, and Belmar
is one of them."
Antenna Construction at Belmar Now jeaving the pleasantries of Belmar ecology, let
me go on and say that the initial antenna construction there was six masts,
each 300 feet high, crossing the road at right angles and stretching westward
for almost one mile. Later construction added other antennas, some
wood and some steel. Old-times in the neighorhood tell me some were
as high as 400feet.
On a bitterly cold night, the 30th of January, 1914,
the stage was set for the Belmar experiment.
The team of experimenters was made up of Armstrong, Sarnoff and Weagant.
The normal receiving equipment was having its usual trouble in getting
good signals. Finally adjusted, the Armstrong circuit was given its
test; it was both historic and dramatic. Throughout the drafty shack,
signals filled the air with unprecendented volume. They came from
Clifden, Ireland; Poldhu, Cornwall; Neuen, Germany; numerous arc stations
from the West Coast; and finally Honolulu coming in strong during the early
morning hours. It was Armstrong's regenerative circuit, his first
major invention, which was followed by the court-contested super-regeneration
and later his grand climax, frequency modulation.
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over the Belmar site. During 1924, the Belmar site was abandoned.
It is interesting to note that while the site was electronically deserted there came in its place another type of man-made interest. For some years, the main Marconi building served as state headquarters for a clandestine group known as the Ku Klux Klan. The Grand Wizard of this group was a man by the name of Evans, and the area locally known as "The Evans Encampment." Commemortive Confusion Jumping ahead a bit in my story, the Army purchased
the site in November, 1941. The area was given its official name
commemorating Colonel Paul Wesley Evans, a famed World War I signal officer,
but many of the old-timers living in the general vicinity, lacking facts,
assumed that the Army had named the site to honor the memory of the Grand
Wizard.
Seeking cheap and rapid construction, drawings were prepared for a single-story brick structure 900 feet long and 60 feet wide, to be located in the rear of the main Marconi-American brick building, which would be headquarters. Lt. V. L. Friedrich, in charge of "Buildings and Grounds," showed me these plans one morning while the two of us were a Fort Hancock. His orders were to bring the completed drawings to the Commanding Officer, Colonel R. V. D. Corput by 1100 hours that morning for routine approval and then to be sent out for construction bids. Such a long and narrow building looked pecular to me. The two ends were just too far apart and would require long hikes. Vic and I looked at a map showing the topography, and gradually our pencils |
| started marking out shorter lengths of the same type of construction,
but shaping it up as an "H"-building instead of a single length.
Within an hour, we had every draftsman at Fort Hancock site working feverishly
on our new brain-child.
At preciselt 1100 hours, Lt. Friedrich reported to
Colonel Corput in his Squier Laboratory office. He carried with him
the requested drawings and a set of those which had just been finished.
Using as much tact as possible, he persuaded the Colonel to look also at
the new drawings. As Colonel Corput looked at the "H"-building drawings,
a broad smile crept across his face, and the drawings for the 900-foot
building quickly found a resting place in his wastepaper basket.
And so the present "H"-building was born.
The author at the museum of the Twin Lights Historical Society, Highlands, New Jersey. |
seem to recall that about 20 of these buildings were erected at Fort
Hancock, neatly lined up with military precision.
The argument for the plan was: first, we must be able to work on many sets at once and under cover; second, we wanted to spread our resources so that in the event of German bombing or fire all would not be lost in one raid; and third, a standardized construction design could produce many buildings cheaply and rapidly. Looking over our construction one day, a visiting Air Corps officier impishly said that the alignment and spacing of our buildings was just right for a bomber dropping 100-pound demolition bombs. One bomb would fall on the first building, the second on the next, the third on the following and so forth, all down the entire street, leaving areas between buildings unscathed. Fortunately, the bombers never came. When we moved to Evans, this same type of building construction came easily and in mass production. I seem to recall a figure of $40,000 per building, with only a few weeks required for delivery. So Evans was soon crowded with these SCR-268 shelters, all of which have been under continuous modification since 1942. Occupancy of the Belmar site started during the 1941-42
winter under the name of Signal Corps Radar Laboratory, a name conspicuously
posed in large lettering for all to see from the public raod passing by
the headquarters building. The Fort Monmouth laboratory counterpart
was called the Signal Corps General Development Laboratory. But the
word "Radar" in the marquee did not stay up for many months, for winging
its way up from Washington came the message that the word "radar" was classified,
and great were the bonfires as tens of thousands of envelopes and letterhead
stationary became a part of the atmosphere.
The topology of my story now shifts some fifteen
miles north of Belmar to a place called Twin Lights, Highlands, New Jersey,
the highest point of land on the Atlantic seaboard. Again, my story
will be of Marconi first and the U. S. Army second.
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| transmitting signals on the race as it progressed. Antennas over 100
feet high were installed on both the shore and ship stations-at sea it
was the Ponce of the Puerto Rico Line and the Grande Duchesse, an oceangoing
steamer, both chartered.
As the Columbia finally won .the long drawn out contest, Marconi became somewhat of a national hero. He had sent out 1,200 messages, and the Herald made the most of them in a tremendous news snoop! Two years later came another challenge from the indomitable Sir Thomas Lipton. Radio coverage of the race was now to be undertaken by a newly formed company called The Marconi Wireless Telegraph Company, Ltd., of London, England. But unlike 1899, there was competition, for radio in 1901 was starting to blossom. There were DeForest interests, as. well as a new organization called the New England Wireless Telegraph Company. I am indebted to Mrs. B. Hance, Assistant Historian of the Marconi Company Limited, for a copy of the following letter which covered the radio aspects of the second race: About the Race: "Ire Yacht Races.
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having regard to the fact that our available heights were approximately
120 ft.
Unfortunately the opposition appear to have regulated their heights by our own, and using as far as I can learn plain aerial, omitted a fundamental wave of 240 ft. in length with the various shorter waves corresponding with the various harmonics. It was therefore difficult to cut them out either with condensers or chokers. The real difficulty came however not from the opposing land stations so much as from their ships. On many occasions they were right alongside Gray in the "Mindora" and by sheer force of energy (the "Edna Crewe" used a powerful alternater as transmitter, and the schooner a large induction coil) made quite useless any arrangement of condensers and chokers as a tuning device. The three ships were practically close together throughout the races and thus at about equal distances from Long Beach. The available energy however, on the opposition ships being apparently much greater than that on the "Mindora" even when Gray used the biggest spark obtainable, it became-to me-an impossibility to cut out interfering signals from them. We made transmitting and receiving jiggers for using a much longer wave but without success, not the necessary time to experiment fully. In my opinion a very long wave system should have been sent for the work, when we could possibly have obviated to some extent the interference by the insertion of much self-induction: with the short wave system we were practically powerless. If it had not been for the very great pains taken by Mr. Gray and our other assistants engaged in the work, and the patience that they displayed under very trying circumstance, we could not possibly have got through the quite considerable amount of work that we did. Yours faithfully, (sd.) W. W. BRADFIELD." Signal Corps Interest Returning now to the 1899 race and Marconi's radio triumph in its coverage, it is of historical interest to note that an ever-alert Signal Corps was also on the scene. Special Orders No. 213, Headquarters of the Army, dated September 12, 1899, directed Sergeant Walter R. Taylor to temporary duty at the Highlands of Navesink during the yacht races "for the purpose of carrying out special instructions of the Chief Signal Officer of he Army." Apparatus Test On September 26, 1899, a Mr. Carl Kinsley wrote to
Sergeant Taylor, "I find that Marconi won't be in condition to make any
tests until Monday. All his apparatus has not yet arrived. It seems necessary
to make another attempt to reach the light ship and to try our apparatus.
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Early models of both the SCR-270 and SCR-271 installed at Twin Lights, New Jersey, about 1940. "I enclose $5.00. Get 10 panes cheap 8 x 10 in. of window glass to make
condenser.
Proving a Claim I do not know who Carl Kinsley was, but since Sergeant
Taylor's orders also included a short trip to Schenectady, New York, there
is room for the reader to guess, if he wants to. How the experiment went,
I do not know.
References for first part of story:
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within feet of the commemorative Marconi plaque at Twin Lights. On
Tugboat L-40, your author was able to hear these signals to almost 100
miles. The date was August 13, 1933. Again Marconi was proven correct.
The ground hallowed by the early Marconi work was also the scene of other experiments by personnel from the nearby Fort Monmouth laboratories. Twin Lights, July 30, 1935. Set up within a few feet of the Marconi antenna site, a heat detector was demonstrated having a clear weather sensitivity capable of following a ship from its own thermal radiation until it had passed well beyond the horizon. A spectacular searchlight display associated with the tests resulted in a high level of international publicity with the press dubbing our secret project "The Mystery Ray." It was this equipment, demonstrated a few months later at Fort Monroe, Virginia, which led to a major General Staff decision giving the Signal Corps the entire Army responsibility for research and development using radio techniques for the detection of aircraft and marine targets (radar). Quite appropriately, a very important radar demonstration
was also made from this Marconi site some years later. It was during November,
1939. The demonstration was for the Secretary of the Army, Harry A. Woodring,
and Generals George C. Marshall and Henry H. "Hap" Arnold, together with
Chief Signal Officer Joseph O. Mauborgne. The potential of early-warning
radar was dramatically shown to this .top "Army Brass." A flight of B-17
bombers was tracked to the end of Long Island and back. (The one-way distance
covered 138 miles). The success of this test led to early and expedited
production of this radar, the SCR 270's and 271's. The first sets of this
type were operational in Panama by June, 1940, and a year later in Hawaii.
It was an Hawaiian-based SCR-270 which heard the warning, albeit unheeded,
of the Japanese approach to Pearl Harbor on December
7, 1941.
References for second part of story: 1. Bulletin; Twin Lights Historical
Society.
Reprinted from SIGNAL October 1970, Official Journal of the Armed Forces Communications and Electronics Association. |