REQUEST FOR TASK ORDER 9, CONTRACT RD-79,(SANITIZED) INCORPORATED

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03424A002400030017-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 9
• Document Creation Date: December 22, 2016
• Document Release Date: September 20, 2011
• Sequence Number: 17
• Publication Date: January 29, 1957
• Content Type: MEMO

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 Sanitized Copy Approved for Release 2011/09/20: CIA-RDP78-03424AO02400030017-6 - P S
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RESTATEMENT OF THE PROBLEM AND OBJECTIVE
The en.d product of the proposed project is a manual for use
by instructors to train. n.on-technical people in. the field of
antennas and radiation.. The manual will include a brief discussion,
of the theory of simple antennas as related to propagation., a
discussion, of non.-directional and directional anten.nas, makeshift
an.ten.n.as, direction. findin.g, concealment, and construction,
information. The handbook will be practical as opposed to theo-
retical and will be written at the level of person,n.el with only
a minimum knowledge of communications.
While primary emphasis in. the manual will be on. con.st,-'.fiction
and orientation., the contractor believes that a very limited discus-
sion. of antenna and propagation. background will be necessary as in-
troduction to the material on. types of antennas and construction,,
thereof.
ORGANIZATION
The project will be broken. into three basic phases. Phase
A will be a study and planning phase. The an,ten.n.a review and in-
vestigation will be con.ducted in. conjunction with the planning for
work under Phases B and C. will be in. 25X1
general supervision. of the work called for under this phase. Frank
T.I IJr. will assist
in. the plan.n.in.g of Phase B. 25X1
Phase B will involve ascertaining data on. makeshift antennas
and measurement of radiation. efficiencies of simple directional
and non.-directional antennas under adverse use conditions.
will assume general supervision, and coordination. of work, 25X1
U U
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WASHJNGTON,1 D.' C. 25X1
under this phase.) will supervise the laboratory
Phase C will involve the correlation. anal editin.g of material
and data from Phases A and B, culminating in. the writing of the
antenna manual and preparation. of exhibits.
Close liaison. will be maintained with the con.tractin.g agency
throughout the project. It will be necessary to make use of the
background material available at the con.gractin.g agency for
particular problems such as operational techniques, 25X1
methods, DF methods, etc. This information, will be required
either for in.clusion,in. the book or as reference material for
making decisions regarding types of antennas to be used and
methods for their use.
METHOD OF APPROACH
The basic requirement called for in, contracting agency's
specification number 56-A-1055-A is a simplified manual describing
antenna construction.. Paralleling this basic requirement is the
need for an, investigation. of numerous antennas culminating in, a
choice of a few to be included in. the manual. Also required is
material in. the manual discussing the use of the particular antennas
to permit instruction. in. the choice of and location. of antennas
under varied conditions.
A preliminary outline of sections to the manual follows.
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I Basic Propagation. Discussion.
A. Ground Wave
B. Sky Wave
C. Skip Distance
D. Day and Night Con.ditions
E. Effect of Frequency
F. Polarization. of Wave
II Fun.damental Antenna Discussion.
A. Def in.ition.
B. Matching
C. Grounding
D. Effect of Obstructions
III Simple or Non-Directional Antennas
A. Types
B. Use
IV Directional Antennas
A. Types
B. Use
C. Direction. Finding
V Makeshift Antennas
A. Types
B. Use
VI Grounding
4P, P
o f d L25X1
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A. Height of An.ten.n.a Above Ground
B. Types of Grounding
C. Grounding Within. Building
VII Concealment of Antennas
A. Temporary
B. Long-term
VIII Antenna Impedance Matching
A. Methods
IX Construction. of Antennas
A. Use of Kit Materials
B. Use of Makeshift Parts
The above is intended only as a general outline. Rearrangement,
editing and revision. will be made during Phase A and refined during
Phase C.
Within, the manual several factors not shown. in,the general
outline will be covered. The radiation efficiency of antennas of
improper length will be illustrated. Anten.n.a patterns showing major
lobe angles will be included. Two or three basic transmitting
situations will be discussed such as transmitting from a house,
barn., apartment building, wooded areas, and open. fields. In. this
discussion., information will also be given, on. the best type of
antenna for location, within. an. 8 x 8 x 8 room; i. e., whether it
should be close to the wall or the middle of the room, etc.
25X1
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 WASHI;NOTON, D. C.
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The contents of the instructors part of the manual will be
written, at a level that may be absorbed by a person. with a very
limited technical background. Numerous illustrations will be
included. In. general, there will be a repetitive style used;
that is, subjects will be introduced in. very broad terms followed
later by more detailed discussions.
The appendix represents the most challenging portion. of the
manual. It will show construction. of antennas with possible
illustrations of length versus frequency, height above ground and
other parameters without the use of written, material (i.e., length
shown. by man heights, etc.). The ways and means of preparing the
appendix will require considerable study. However, we feel that
a very good job can. be done by our engineering group working with
the illustration, department.
choosing anten.n.as to be discussed. Laboratory work will be
limited to ascertaining impedance data on. makeshift antennas
radiation. characteristics, and matching techniques.
GENERAL
In, the preparation, of the manual, the contractor will make
use of available antenna information., particularly as regards
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11 u
SPECIFICATION NO. 56-A-1055-A
FOR
]ANTENNA MANUAL
17 October 1956
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SPECIFICATION NO. 56-A-1055-A
TASK OUTLINE
FOR
ANTENNA MANUAL
THE PROBLEM:
A simplified manual describing construction of antennas for
radio stations is required for use by instructors possessing only a slight
commxnications background. It should illustrate antennas suitable for
erection by persons with no technical knowledge in what will generally be
limited space, both indoors and outdoors. The antennas should be designed
for maximum efficiency consistent with ease of construction and the re-
quirement that they be compact and inconspicuous.
DISCUSSION:
1. The information contained in the manual should be based largely on
current antenna knowledge applied to the particular requirements outlined
below. It is anticipated that only a limited amount of experimental work
will be performed by the contractor.
2. As an aid to the training of a adio operator the
manual should cover:
A. Simple directional antennas.
B. Radiation efficiency of "short" (i.e., less than half wave)
horizontal Marconi antennas.
C. Graphical illustration of major lobe angles of antennas
between 0.1 and 4.0 wavelengths long:.
D. Methods of improving radiation efficiency of a fixed-
length antenna over a range of 3 to 30 megacycles.
E.. 'Antennas suitable for construction within a limited space,
e.g. a 3-30 me antenna in an 8'x8'x8' room.
F. Relation between height of antenna above ground and optimum
transmitting distance.
G. Use of conventional and jumbled-wire counterpoise.
H. Efficiency, directional characteristics and methods of
feed of such makeshift antennas as window screens, tin roofs,
metal fences, drain and water pipes, etc.
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SPECIAL CONSIDERATIONS:
1. The manual must contain no mathematics more complex than simple
algebra. Graphs and illustrations should be used liberally. The handbook
should be essentially practical, presenting detailed instructions for
construction and orientation rather than discussions of propagation or
antenna theory.
2. It should be remembered that the antennas under discussion are
usually temporary and that ease of construction and adaptability to
existing supports are major considerations.
3. An appendix will be included with detailed instruction sheets, one
for each antenna, presenting in very simple terms and drawings all of the
information necessary for a non-technical person to cut, erect and orient
a particular antenna.
4. An original and two carbon copies of the proposed manual will be
submitted for review and correction before preparation of the final draft.
5. The manual will be delivered on 8"xlO4" white bond, with " top,
bottom and right-hand margins and a 1" left-hand margin. Since the pages
furnished by the contractor will be photographed for direct reproduction
they should be prepared on an electric typewriter, preferably one equipped
with a one-time carbon ribbon. The text should be single spaced and an
effort should be made to keep right-hand margins as straight as possible.
Line illustrations and graphs may be furnished in any convenient size.
6. Printing will be performed by the contracting agency.
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