CCS EVALUATION PROPOSAL

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03642A000300030002-3
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 22
• Document Creation Date: December 22, 2016
• Document Release Date: June 12, 2012
• Sequence Number: 2
• Publication Date: September 4, 1959
• Content Type: MEMO

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CONFIDERTIAL 116.15--' 0
September
SU*3!CTs CC$ 1~ralsr+tt ! . g e....w.
Enelosaret Technical Proposal, am* ssibj, Serial AAS90632 dtd 9/3/t9
Dear Andyt
In accordance with your mast we are pleased to submit this
proposal whose tsehlaieal details are contained in the enclosure.
The progrss for the testing and evaluation of the CCS System
will generally cestsU t of three parts t
Phase I) 1. lvsluatien of the Crystal Switch system.
phase II) 2. Evaluation of he Coo^valeattisaat System coa.
sitting of gaits .
(Phase 111)3. Nvaluation of the entire slues as it is
intended to be used in the fields life..
testing will be ran concurrently with this
evaluation.
We propose to assts a final report composed of three sections
in the order listed below.
1. At the completion of Phase I - approximately 12 sanths
after date of contract aseeptance and receipt of material.
2. At the completion of Phase II - approziaately 6 aoths from
completion of Phase I.
3. At the coaiplettien of Phase III - approximately 6 heaths from
completion of Phase II.
The total tine required to complete this prepped program, is
tventy fouur menShs from date of contract acceptance.
This nrotran will be eeadmata& I&
out estimate ed cast breakdown for conducting this evaluations
program is as fellow on page 2.
IM RYem " ITQ1M
viii COMP / son T!PE 0/
0111$ CLASS PANES NET GLASS _-44r
.
-
JUST NEXT NEY O,Q AUTHt HN 154
116.15.1%3
ILLEGIB
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CONFIDENTIAL
11$?13-d0
Pape 2 ?- CCS Ivsluatien Proposal . 4 September 1959 - Andy
COST *ZA OW
SupiASa, DL
ILE at u
Material A Other Chgs
Sub-Total
Af.A at
Ts ~
st
Fixed Pee at
$ 49,844
There has been a long-term activi conducted hers in the Labora-
tory, mrdsr the technical cegaisswee off and know as Task
Order No, 3 wider the basic oatrast. A very large parties of this
activity has resulted in the roe rdiap of test data 'which bears di-
rectly on your surest problem. It is suggested that yon, make arraage-
ants so that the pysple who did this previous work and their expert.
mental evidence may be brought in contact with the group working for
you. Two benefits will result from thiss first, sew of the ground
which has besa plowed need not be plowed againj second, the experi-
once may be passed on so as to ease the work on your job.
Very truly yours,
Prepared bye
116-13- A S
CONFIDENTIAL
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,too
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MI CUWENT CONTAINS INPORMAT/ON A/IKCnNp
TIE "PtATIONAL DEFENSE OF THE UNITED STATE/
WITHIN THE MEANIN? O. THE ES-/ONAOt 16AWS?
WNCIDE AL TITLE IS. U: 6.G.. 5 E C TLO N9S? v9' AND` ? IT*
iT TRANSMISSION OR. THE xgvts.ATSpN OF IM CONTEN"
}~/~/- "-r- IN A'NT YANNtR TO AM. VN~ J~NORIEEO rEOOOK
Carrier Current System Evaluation
I. PURPOSE
The primary objective of the program as proposed herein is to
obtain, through test and observation, sufficient data to allow
evaluation of the performance, suitability, and reliability of the
Carrier Current Surveillance System, to include both the communi-
cation portion and the latching relay portion. A secondary objective
is the generation of conclusions and recommendations as to engineering
modifications and operating techniques which may improve the usefulness
of the equipment. The equipment to be evaluated will include the
Carrier Current Receiver and Transmitter as well as '25X1
Carrier Current Crystal Switching System.
II. DISCUSSION OF THE PROBLEM
To be of maximum use, equipment of the nature to be evaluated
herein must fulfill a number of important technical and operational
requirements. The characteristics of the equipment relating to these
requirements must be measured or otherwise appraised for any evaluation
to be of maximum usefulness to the customer. The general requirements
which must be present and which are to be evaluated are as follows.
Reliability of the equipment is of great importance. Since
thel (Switch Receiver and the
Transmitter will normally
not be available for servicing after installation long life under
operational conditions is vital.
Of equal importance is basic technical performance of the
equipment alone. Installation will, in nearly all cases reduce the
performance characteristics obtained
in the laboratory. These
This Document Consists Of...,L7.`...lsge 4 .
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I J
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characteristics include system range when operating on various
power line configurations, audio range in terms of sensitivity,
intelligibility, and linearity, and reliability of the switching
system under various operational conditions. The effects upon these
factors of such external influences as orientation of parts, power
source variations, and deterioration with time should be measured
as far as possible.
A third criterion concerning the usefulness of this equipment
is the factor of security. Since location of the equipment would
prove moderately simple if its existence is known, system operation
must be such as to minimize external indications of its presence.
Development of excessive heat, emission of spurious radiation,
audible hum or clicks, and the insertion of noticeable. disturbances
on the power line can be considered serious limitations.
A final criterion is that of equipment utility. This includes
such items as ease of installation, operation, and maintenance as
well as the influence of various installation conditions upon
system performance.
Measurement or observation of these factors should provide the
necessary information upon which a sound evaluation can be based.
This information will also provide the basis for recommendations
for improvement of the devices and of instructions for any desirable
special installation or operating techniques. Since in this
problem it is not possible to test a statistically adequate sampling
of equipmei'tts, test res?zlts cannot necessarily be considered
CONFIDEP(HAI
r
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conclusive. Because direct comparison with other units octen can
not be made, conclusions drawn must stand alone. However, general
difficulties will usually be detected, and using personnel will have
some bettor idea of the desirable installation requirements and
operating-capabilities and limitations of the equipment.
III, PROPOSED PROGRAM
The program for the testing and evaluation of the Carrier
Current Surveillance System will generally consist of three parts.
The first will be the evaluation of the Crystal Switch System.
Next an evaluation of the Communication System consisting of the
units will be made. Finally an evaluation of the
entire system as it is intended to be used in the field will be
accomplished. Initial testing will be in the laboratory, but oper-
ational testing will be done in the field. A life testing program
will be initiated and will run concurrently with the other
evaluation.
The final report will be issued in three sections: one at the
completion of each of the'three phases of the work. This follows
directly from the grouping of the tests as proposed herein. The
first section of the report will deal with the testing of the
Crystal Switching System. The second section will cover the
communications portion of the system, and the final section
will cover tests on the system as a whole as well as miscellaneous
observations made throughout the program.. The results of the
life testing program will also be summarized in this final section
of the report.
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IV. TESTS TO BE PERFORMED
While it is beyond the scope of this proposal to describe in
detail the tests required, the following, listing is indicative of
the types of teats to be performed. Included are those measurements
specifically called for by the customer, plus others which are
deemed advisable. In addition, as the tests proceed, if observations
indicate the need for measurements not specifically outlined herein,
they will be included.
Standard test conditions applicable to this equipment will be
established as soon as possible after receipt of the units.
A. Crystal Switch-System Tests
1. Receiver measurements: Measurements will be made on
receivers in the condition received. One receiver will be aligned
and partially rechecked. Should a substantial difference be noted,
all receivers will be re-aligned and rechecked. Wherever possible
measurements on the _ alone will be made using a CW signal from
a precision signal generator suitably coupled to the power line
at the pointwhere the is itself connected to the source of 25X1
power*
a. Frequency and Bandwidth of Input and Amplifier Circuit.
1. Measure output of Input-and Amplifier Circuit, as a
function of input frequency.
2. Determine center or peak frequency.
3. Determine halfpower (3 db) points.
b. Sensitivity of Input and Amplifier Circuit. Measure
output of Input and Amplifier Circuit at the center frequency
as a function of input signal amplitude.
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c.' Frequency and Bandwidth of "Off" Channel Circuit.
1. Measure output across "Off" relay coil as a function
of input frequency.
2. Determine the center or peak frequency.
3. Determine frequency at which relay fails to energize
to the "Off" condition consistantly.
d. Frequency and Bandwidth of "On" Channel Circuit.
1. Measure output across "On" relay coil as a function
of frequency of input signal.
2. Determine the center or peak frequency.
3. Determine frequency at which relay fails to energize
to the "On" condition consistently.
4. Determine time required for triggering to occur.
el. Pbw9r source variations: For a + 30% change in voltage
input to the unit, measure the following:
la. Current drawn by,the unit.
2. Power consumption.
3. Measure frequency and bandwidth of both the "On" and
"Off" channels as described in sub paragraphs c and d
,above.
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f. Temperature and Humidity: Temperature and humidity
will be varied between 0 0 C at 0-5% relative humidity and
600 C at 95-100% relative humidity and the frequency and band-
width of both the "On" and the "Off" channels will be measured
as described in sub paragraphs c and d above*
g. Contact resistance: Relay contact resistance will be
measured for several values of current within the range
specified by the manufacturer. No life testing of the relay
itself will bb accomplished, since this work has been done
as part of a previous task. Results of this relay testing
will be included for reference in the final report, however*
h. Field tests.: The following tests will be conducted in
the field:
1. FI'dandom triggering. A random selection of voice,
musical, and CW signals will be fed to the input of the
receiver and note will be made of any triggering which
may occur. Observations will be made throughout the test-
ing to note whether any particular type of transient or
other signal will cause regular triggering of the receiver
to' either the "On" or the "Off" position.
2. Altitude. One unit will be subjected to a pressure of
2.5 psi, corresponding to an altitude of 40,000 feet for
a period of one hour. Operation will be checked after
return to ambient conditions.
3. Temperature: One unit will be subjected to a temperature
of -65? F for a two hour period. Operation will be
checked after return to ambient conditions.
Vibration: One unit will be vibrated for a half hour
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period along each of three mutually perpendicular. axes at
rates cycling from 10 to 60 cps once each minute. Double
amplitude will be 1/32 inch. Equipment will be observed
for any resonances and will be vibrated at the reasonant
frequency if one is found. Equipment will be tested for
normal operation both during and after the tests.
5. Drop: One unit will be dropped in the manner which
has been specified by the customer. Upon completion of
the drop, the unit will be tested for proper operation.
2. Transmitter measurements: Measurements will be made on
one transmitter tuned in accordance with the instruction manual.
a. Frequency: Frequency will be measured for both the "off"
and "On" positions of the Crystal Selector Switch, with the
equipment tuned as per the instruction manual.
b. Power Output: Power output will be measured for various
settings of the Output Impedance switch. Measurements will
be made f or both the "Off" and "On" -Channels. A check of the
adequacy of the output meter for determining optimum loading
will be made.
c. Power Line Variations: For a + 30% change in input voltage
to the unit the following items will be measured:
1. Current drawn by the unit.
2. Power consumption.
3. Power output for both the "Off" and "On" channels as
described in b above.
4. Frequency for both the "Off" and "On" channels as
described in a above.
d. Temperature and humidity: Temperature and humidity will
be varied between 0? C at 0-5% relative humidity and 60?C at
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95-100% relative humidity and the following items will be
measured:
1. Frequency for both the "Off" and "On" channels as
described in a above.
2. Power output for both the "Off" and "On" channels as
described in b above.
e. Field tests: The following tests will be conducted in the
field:
1. Spurious outputs: Transmitter output will be
checked for harmonic content and for parasitic oscillations.
2. Altitude: One unit will be subjected to a pressure of
2.5 psi for a period of one hour. Operation will be checked
after return to ambient conditions.
3. Temperature: One unit will be subjected to a temperature
of -65?F for a period of two hours. Operation will be
checked after return to ambient conditions.
4. Vibration: One unit will be subjected to the vibration
described in sub paragraph h (4) above. Operation will
be checked both during and after the vibration period.
3. Crystal Switch System tests: Operation of the XCS-2 system
will be checked with transmitter and receiver located in two rooms
on the same floor of an office building and between two rooms five
floors apart. Operation will also be checked in a typical home
between circuits on the same side of a split phase system and
between circuits on opposite phases of the system. Operation will
also be attempted between houses which are on the same power lines
and which do not have transformers between house and line. An
attempt to obtain some sort of range figures for such operation
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will be made. Experiments will be made with'both single and three
phase systems to attempt to determine the sypes of systems over
which reliable operation can be expected. No attempt will be mode
to bridge any transformers with capacitors or other devices, since
it is expected that normal operation of the equipment would preclude
such activity. A qualitative conclusion will be reached concerning
the effects of various types of transformers in the transmission
path.
B. Communications System Tests
1. Transmitter measurements: Except where they are test
variables, the following parameters will be standardized throughout
the test program:
Warm up time 1 hour
Line voltage 115 volts 60 cps
Audio signal frequency 1 KC
Deviation control Factory setting
Frequency control factory setting
a. Repeated tests: Before and after any specific tests, the
following checks will be made and recorded to obtain long
term drift or drift caused by any specific testing.
1. RF Power output: Measured across a standard resistor
after suitable filtering. This measurement will be
necessarily a function of the filter'ussdd and will" only
serve to measure variations from time to time or equipment.
Absolute values will not be determined using.this setup.
2. Noise level.
3. Deviation control range.
4. Audio Frequency response.
5. Cumulative Operating Time. ?
6. Input Power requirements.
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b. Audio measurements:
1. Transmitter audio frequency response for various
settings of the deviation control.
2. Deviation sensitivity and linearity from noise level
to overload.
3. Microphone frequency response for
microphones. These responses have previously been
completed and will not be repeated in these tests. The
data previously obtained will be included in-the final
report, however.
4. Frequency response of microphone-transmitter combination.
5. Harmonic distortion.
6. Intermodulation distortion.
7. Articulation tests made in anechoic room with master
tape. Runs will be made with microphones.
Runs will be recorded on tape.
c. Temperature and Humidity effects: Temperature and humidity
will be varied between 0 0 C at A-5% relative humidity and 60?C
at 95-1001' relative humidity and the following measurements will
be made:
1. Frequency shift.
2. Deviation sensitivity
3. Audio frequency response.
Li.. Power output (measured as described in sub paragraph a
(1) above and subject to the same limitations)
5. Noise level
6. Case surface temperature.
7. Temperature will be increased to failure of one unit only.
e ~ro~m
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d. Power source effects: For a + 30% change in line voltage
about 115 volts and about 230 volts, the following measurements
will be made:
1. Power input. ?
2. RF power output (measured as described in sub paragraph
a (1) above and subject to the same limitations).
3. Deviation sensitivity.
4. Audio frequency response.
5. Frequency shift.
6. Noise level.
e. Field Tests:
1. Altitude: One unit will be subjected to a pressure of
2.5 psi for a period of one hour. Operation will be
checked upon return to ambient conditions.
2. Temperature: One unit will be subjected to a temperature
of -65?F for a period of two hours. Operation will be
checked after return to ambient conditions.
3. Vibration: One unit will be vibrated for three half-
hour periods along three mutually perpendicular axes as
described above in sub paragraph A 1 h (4). Operation
will be checked both during and after the vibration
period.
4. Drop: One unit will be dropped in a manner which has
been specified by the customer. Operation will be checked
after the drop.
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f. Miscellaneous Observations:
1. Ease of handling and adjustment during tests.
2. Structural weaknesses or under-rated components.
3. Visible and operational effects of shock.and
vibration, resulting from handling during commercial
transportation.
4. Audible hum or other noticeable noise.
5. Sensible heat transmitted through various wall structures.
2. Receiver measurements: Except where they are variables,
the following parameters will be standardized throughout the program:
Warm up time
Line voltage
Radio Frequency
Audio Frequency
Voltage Adjust Switch
Phone Gain Control
a. RF Section Tests.
1. Bandwidth
1 hour
115 volts
80 or 110 KC
1 KC
Adjust for meter reading of 50
Malt imum
2. Gain as a function of frequency over the tuning range.
3. Oscillator frequency stability - conversion linearity.
4. Noise figure as a function of frequency.
5. Input and output impedances.
b. IF Section Tests.
1. Bandwidth.
2. Gain at the IF frequency.
3. Limiter action for various input levels.
4. Discriminator linearity and width.
5. Noise figure.
6. Input and output impedances.
a. Audio Section Tests:
1. Bandwidth,
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2. Gain.
3. Linearity.
4. Noise figure.
5. Input and output impedances,
d. System Tests: Certain tests by their very nature must
incorporate all of the various components of the system before
they can be made. Tests'of this type to be made on the CCR-2
are:
1. Overall bandwidth for a constant input audio signal.
2. Overall gain - sensitivity.
3. Overall noise figure.
4. Tests to determine quieting action as a function of the
magnitude of the audio portion of the input signals.
5. Intermodulation distortion.
6. Harmonic distortion.
7. Noise introduced by various lengths of wire attached
to the Headphone and Recorder outputs.
4
8. Information concerning the performance of the AGC
circuit with respect to input signal amplitude.
e. Power source tests: The following tests will be performed
at intervals over the voltage range of + 30% about the 115 v
standard. No compensation will be attempted with the use of.
the Voltage Adjust Switch. This will allow the performance
of the system over extremely wide voltage changes to be
determined.
1. Overall bandwidth.
2. Sensitivity.
3. Noise figure.
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4. Harmonic distortion.
5. In addition to the above tests, the line voltage will
be dropped until the oscillator ceases to function. The
voltage at which this- phenomenon occurs will be noted.
f. Environmental Tests.
1. Temperature and Humidity Tests: Temperature.and
humidity will be varied between 0?C at 0-5% relative
humidity and 600 C at 95-100% relative humidity, and the
tests listed above under Power Source Tests will be made
at various points in the cycle.
2. Low temperature tests: The unit will be subjected
for a period of two hours to a temperature of -65?F.
Operation will be checked upon a return to ambient
conditions.
3. Altitude Tests: The unit will be subjected to a
pressure of 2.5 'for a period of one hour. Operation will
be checked upon the return to ambient conditions.
3. Combined tests employing both receiver and transmitter:
Operation of the system will be checked with the transmitter and
receiver located in two rooms on the same floor of an office building,
and between two rooms five floors apart. Operation will also be
checked in a typical home between circuits on the same side of a
split phase system and between circuits on opposite phases of the
system. Operation will also be attempted between houses which are
on the same power line, but which do not have transformers between
the house and the line. An attempt to obtain some sort of range
,figures for such operation will be made. Experiments will be
made with both single and three phase systems in an attempt to
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determine the types of systems over which reliable communication
can be expected. No attempt will be made to bridge the transformers
with capacitors or other devices, since it is expected that normal
operation of this equipment would preclude such activity. A qualitative
conclusion will be reached concerning the effects of various types
of transformers in the transmission path. ?
0. Carrier Current System Tests
A final series of rests Hill be made, employing the entire
carrier current system operating together. No definite statement
of the tests to be made can be made at this time but rather a
program will evolve from the experience gained in testing the
individual pieces of equipment involved in the system. In general,
however, tests will be-made using the various types of lines
described in the two sections on system testing the switching
and communications portions of the system respectively. These
tests will be oriented towards determining which of the two sub
systems is the limiting factor in successful operation of the entire
system. Idiosyncracies exhibited by any of the equipment when
operated in close proximity to the other pieces will be noted during
this phase of the testing. This includes "loading" or other
attenuation effects.
The system portion of the testing will be oriented, as far as
possible, towards using the equipment under simulated field conditions.
In this mane er, information concerning the utility of the equipment
may be gained.
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D. Life Testing
Initial Checks will be made on all equipment, and a representative
system will be chosen for life test. One Crystal switch system
will be operated continuously. Thel lunits will be
1.
controlled by the Crystal Switch reoeiver, Both an 80 KC and a,
11,0 KC will be used. The Crystal switch transmitter will
be triggered such that 1be controlled units will have two eight hour
"On" periods daily. Operation of the entire system will be
checked daily. Operation will continue until the failure of any
unit. When & ..unit fails, it will be'replaced by a spare unit, and
operation will co'ntinue.' Tests will continue for one year.
Every 200 hours of operation, certain routine checks will be made
on the equipment as follows:
a, Frequency of both "On" and "Off" channels.
b. Current drawn by the unit.
c. Power consumption,
d.' Power output for both the "On" and "Off" channels.
2.
a. Current drawn by the unit.
b. Power consumption.
Frequency and bandwidth of both the "On" and "Off"
channels.
3.
a. Power input,
b. RP power output.
c. Deviation sensitivity.
d. Audio frequency response.
25X1
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Bands .dth.
Ss.ltvity,
'petonc distortion.
Miriam input voltage for operation of oscillator.
V . ? ',,, ,, 88 FIIRH 3RD BY ,THE CUS TOMERR
The Following equipment is considered reasonable for the
pertorsert e . of the tsstq
A Four (4)
B. Four'(4
D. .-.our
receivers with spare
tube complement,
transmitters
(80 KC)
with microphones.
transmitters
receivers,
(110 KC)
with microphones.
transmitters..
VI. OR$ VATIONS
Throtout the test program, the equipment will be observed
for the `following general Informations
A. -Reli*bility. in-use and general structural reggedness.
B. Vulnerability to damage due to mishandling or wrong
connections.
CO Detctability as caused by audible noise, clicks, or hum.
D. Irregular operation of relays in the switching system which
,might cause the equipment to trigger at an undesired time.
8. Apparent adequacy of the instruction manuals,.
F. Installation notes which may make for improved field
installation and operation.
9/,7/0- 9
?ow. (4)
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Declassified in Part - Sanitized Copy Approved for Release 2012/06/12 : CIA-RDP78-03642A000300030002-3
 Declassified in Part - Sanitized Copy Approved for Release 2012/06/12 : CIA-RDP78-03642A000300030002-3
CONMEIVTIAL
CCR-2 R'ECEIVt R WIRING ERROR
Two of the~ receivers were not found to be o eratin properly
when they were received at The area
of malfunction was in the quieting obtained for soecific input signals.
The two receivers, Serial Numbers 106 and 110 respectively, required ap-
proximately 100 times the input signal level as the remaining receivers
in order to obtain ecri ivalent cuuieting. This effect occurred both at the
20 db and 40 db quieting levels:
Upon investigation, the trouble was found to be in the area of the
RF input transformer, n. Connections to this transformer were not pro-
perly made in each of the two faulty units. The electrical result was
that an internal electrostatic shield within the transformer (which is not
shown on the equipment schematic) was not connected to chassis ground.
This'chassis ground is also not shown on the equipment schematic.
Thee are two possible reasons for the erroneous connections which
should be mentioned in order to facilitate the elL-Anation of this error
from future equipments. First, the transformers, while they were anr:ar-
ently electrically identical, were physically different. This difference
was in the internal connections between the transformer elements and the
external solder lugs. In addition, the red marking dot, which was appar-
ently supposed to locate the pin connected to the electrostatic shield,
was not properly placed on all the transfor,ffers. Secondly, the orientation
of the transformers in the receivers was not he same for all units. These
two fact:; can be clearly seen on the accomppanying :;ketch. It Is quite
likely, in the light of these facts, that c nsiderable confusion could
have arisen when the equipment was wired with the resultant error. The
soldered joints on this transformer gave evidence of having been tampered
with in the faulty equipments. This is further evidence that some effort
night have been made to correct the trouble.
By reference to the first column of the attached sketch, it can be
seen that due to the differences in orientation of the red dot with re-
spect to the ,pins on the v,-ri.us transformers, it was impossible to make
the ;.>roner corrections on the miswired units without disassembling the
transformers and visually locating the internal connections. This was
done, but no attempt was made to make all the units physically identical.
For purposes of test, electrical identity is sufficient. After the
changes were made, the two faulty units functioned well within' the manu-
facturer's tolerances with r es-'ect to quieting.
COIVF9DENT9AL
Declassified in Part - Sanitized Copy Approved for Release 2012/06/12 : CIA-RDP78-03642A000300030002-3
 Declassified in Part Sanitized Copy Approved for Release 2012/06/12 : CIA-RDP78-03642A000300030002-3
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CONFIDENTIAL
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Declassified in Part - Sanitized Copy Approved for Release 2012/06/12 : CIA-RDP78-03642A000300030002-3
 Declassified in Part - Sanitized Copy Approved for Release 2012/06/12 : CIA-RDP78-03642A000300030002-3
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Declassified in Part - Sanitized Copy Approved
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8-03642A0003
000300
02-3