AS-6 DATA TELEMETERING SYSTEM

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03330A004100090045-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 18
• Document Creation Date: December 22, 2016
• Document Release Date: January 4, 2012
• Sequence Number: 45
• Content Type: REPORT

Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4 25X1
- Ix-T it arGv!T
-SECRET
crystal filters are being modified
sirable ringing following the rece
been modified slightly as a result
cuits have been-added to the powe
ated.satisfactorily for several we
relocated correcting the previous
thorough test and evaluation, how
sisto.riaed amplifiers. Work has
of those circuits which have been
tem breadboard.
/tIdJEM GG fe SS
SDN .R.D.8-1.102/23 ILLEGIB
Page 2 of
Copy. of 17
by to minimize unde
ve d pu s.e.. A,GG circuits have also
of these tests. New protective .cir.
.supplies which have now been oper-
ks. Recognition circuits have been
y found lead length problem. A
ver, awaits completion of new tran-
been started on final module design
emonstrated.successfully on the sys-
.TASK 6. RS-16A TEST PQ
Work-on this Tas
TASK 7. SERVICE AND SU
Rework of six (6) ?US -16A. Field Units was started, on a
high priority basis, with.-the. schedule calling for two by 25 December
and the remaining .four to follow at intervals of one every two weeks.
Modification plans were agreed upon at a meeting in Washington between
Government representatives and Messrs.
Refu bishment .of an AS-4 Receive Terminal,
preparatory to its shipment 25 D cember, is a part of this same program.
Plans have been completed for p ocuring all parts and performing all
necessary work and testing on _ is crash program.
Repaired Autotunf motors were delivered to the Government
during this reporting period.
TASK 8.
AS-6 DATA TE LE.ME TERING SYSTEM
Field Unit: During this reporting period the digital converter
was successfully interoperated in. Washington with.a breadboard of the data
collector. These tests covered only the operation of the converter into the
collector memory circuits, and-did not check such control functions as the
"urgent" indication or the "clear" operation. Some minor problems were
discovered which-will, result. in.the addition of one flip-flop to the digital
converter, and one blocking .oscillator to the collector. Final packaging
SECRET
25X1
25X1
DOC REV DATE 31 M 80 BY b1 Y$t~O
ORIG COMP & DPI =_ TYPE
ORIG CLASS s PAGES REV CLASS s
JUST NEXT REV CA a/ d AUTH: HR 10.2
25X1
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
SECRET
SDN RD8-1102/23
Page 3 of
Copy of 17
of the digital converter will begin.dur,ing,the next reporting period.
Design of programming, circuits is virtually complete.
The breadboard exciter was made to operate on five chan-
nels including the extremes Upon completion of these
tests, it was. successfully interoperated with.the first model of the power
amplifier. The combination of these two units will provide .a system
which can be used for testing of the servo tuning as well as life testing
of the components under repeated cycling.
The second exciter which is packaged in near.-final form
is being, revised. to include later thinking of crystal oscillator space re-
quirements. The objective of this effort is a room temperature version
of the exciter in final physical size and -shape which can be used in elec-
trically testing the complete . s yste??..
Extensive tests have been made on the power amplifier to
design and .test the fail-safe features of the system. Decisions have been
made,on all components. All critical items have been received except the
final variable tuning, capacitor and the servo motor, which are expected
.shortly. Design of the automatic tuning;serv.o unit is complete, and it is
about to be connected to the power amplifier for system test.
Tests on various antennas have continued with the emphasis
on higher impedance portions of the antennas. Additional antennas will
continue to be tested.
A prototype model of the. first if amplifier has, been com-
pleted and performs, satisfactorily.. A breadboard model of the second i-f
has been completed and is now being, extensively tested. The .second i-f
employs a new component, for inters.tage coupling which is made by, Clevite.
if successful, use of this component will greatly simplify circuit, complexity.
Work is progressing on the breadboard model of the phase-
detector. During,the next. reporting period, the various breadboard models
will be interconnected and preliminary receiver tests will be started.
Transmit. Terminal: The simplified breadboard model of
this Terminal has been completed and all circuits are now being .optimized.
This model will be tried with the31 D transmitter during the next 25X1
reporting period. Mechanical design is prog.ressing,smoothly.
SECRET
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-03330A004100090045-4
SECRET
SDN.RD8-1102/23
Page 4 of
Copy of 17
Receive Terminal.- The breadboard model of this Terminal
has been completed, and testing of the various control circuits using actual
"on,the air" interference from a second receiver will be started soon.
The interrogation and pulse simulator chassis for this
Terminal have been completed in final form except for the wiring of the
power and signal connectors. All the other chassis for the first RF
Cabinet and the Data.. Cabinet, have been started.
TASK.9. LINEAR EXCITER .FOR THE AS-4A
This program has been delayed indefinitely pending. decisions
on.the future course of the AS m4B program. This action hasbeen concurred
in by the cognizant. Government engineers.
TASK 10.
FABRICATION .OF RS-16B
Mechanical design of the exciter (formerly the highfrequency
oscillator and buffer driver units) is nearing completion and fabrication
will be initiated during the next reporting period.
Fabrication of the keying amplifier is now under way. The
six initial production models will be diverted to the RS-16A. refurbishment
program under Task 7, and will be replaced by later production.
Design of the battery box has been completed. Drawings
will be released to production early in the next reporting period.
TASK 11. RS-16B BATTERY. CHARGER
Electrical design of the battery charger is complete. An
investigation of a recently introduced commercial power supply, which.
could be modified.to meet. the system requirements, is also being made.
TASK 12. RS-16B ANTENNA TUNERS
Work on this Task is going on at a reduced rate due to the
pressure of other programs. A study of the sensing and detection circuits
required by the coupler is underway, however.
SECRET
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-03330A004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
SECRET
Task at a very low rate.
SDN RD8-1102/23
Page 5 of
Copy ,-)of 17
A draft copy of a prel' inary evaluation report was sub-
mitted to the cognizant Government e gineer. This report, discussed
several approaches that might be use L. Effort is being devoted.to this
TASK 13. CS-15 STUDY
Modulation studies ar continuing .and a report is being pre-
pared which-will discuss in detail the low power-swept frequency technique.
Investigation of storage methods is' be ng carried .on and additional emphasis
is being placed on tra.nsistarization of lall r-f circuits.
TASK 14. RS-24 STUDY
GENERAL
visited
Washington from, 17 to 21 November to review all contractual matters, with
particular emphasis on AS-6 and RS-16A. programs.
We are pleased to advise you that a recent .orga
change has been effected.
ecti.on wi remain
the toc a on race RD-10 equipment development; it will receive
increasedsuin) studies, modulation methods and advanced techniques
from Section, while unusual and critic circuit Problems,
especiaLly with regard to transistors, will be referred .to
This support was formerly provided under an informal arrangemen ; s
fo.rmalizat' will ore effective and direct control over RD-103
activities. has been relieved of his duties as Project.
Manager pecia ys "eContract RD-103 matters) to devote full time
as Manager of this new Department.
Progress is satisfactory.
25X1
25X1
.SGL:JABgnnj
Enclosures
Copies 1 through 10
Informal Progress Report, Contract .R,D-103
d_L_U_II_EJ
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4 g
1- O R C? C. T S 0 ,V" v')
SDN REiB-1098/23
Page 3 of 6 25X1
Copy S~ of 15
The combined Final Report and Instruction Manual was
delivered during this reporting period, thereby completing all work
on this Task.
TASK 7, SERVICE AND SUPPORT
One RS-16A Field Unit is undergoing repairs and rework to
improve its reliability. This program is temporarily held up due to a
shortage of replacement parts for the coder.
A second RS-16A was returned for refurbishing during this
reporting period. Work on this unit has not as yet been started, pend-
ing further discussions with cognizant Government engineers.
Scheduled completion of repaired receiver autotune motors
has been extended to 10 November.
As requested, inexpensive copies of the AS-4 transmit and
receive manuals were prepared for use at AS-4A schools. Six copies
of each were shipped at the end of the month.
TASK 8. AS-6 DATA TELEMETERING SYSTEM
Field Unit: Tests of the breadboard digital converter
circuits have been completed. Preliminary arrangements for testing
the digital converter with the data collector are scheduled to take place
during the next reporting period.
The breadboard model of the exciter is being prepared for
testing with the final amplifier. Fabrication of a second model has
been completed and. will be used for system test. Crystal oscillators
are being constructed to replace the previously used signal generators.
The unit will be a five-channel device when completed and will allow
checking of time cycling, servo operation and drive requirements.
A breadboard model of a non-servo tuned amplifier is
operating into a 50 ohm load. Emphasis at this time is being placed
on major components such as the PA tubes, servo tuned plate tuning
capacitor, PA coil form, plate choke and servo motor. At a lower
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
TASK 6. RS-16A TEST POWER SUPPLY
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-03330A004100090045-4
SDN RD8-1098/23
Page 4 of 6 25X1
Copy of 15
priority, studies are being conducted on the fail-safe features of the
system.
Transmit Terminal: All units of the Transmit Terminal
have been separately breadboarded.. Maximum effort will now be
devoted toward integrating these units electrically and mechanically
in the -form of.a complete terminal breadboard. .-Plans call for this
breadboard to be tested with the 231-D Power Amplifier.
Receive Terminal: A second breadboard model of the
Receive Terminal IF amplifier has been completed and is now under-
going tests. All components for the receiver drawer which require
a long procurement time have been delivered.
The recognition and pulse simulator chassis of the Receive
Te rminal are being fabricated in final form. Other chassis are under-
going mechanical design preceeding the fabrication which will be
started in the very near future.
The recognition and pulse simulator chassis of the Receive
Terminal are being fabricated in final form.
Work under this Task is being deferred, with Government
approval, pending more definite specification of the AS-4B program.
TASK 10. FABRICATION OF RS-16B
A second model of the combined oscillator-buffer driver
unit has been constructed, tested and found to perform satisfactorily.
The purpose of this model was to reduce the mechanical complexity
of the sheet metal structure experienced in the earlier model. Elec-
trical design of this unit is complete and mechanical design under way.
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-03330A004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
TASK 7. (continued)
SDN RD8-1095/23
Page 3 of 5
Copy ,,Z of 15
At the request of the Government, one RS-16A is under-
going some minor changes which will add materially to its reliability.
This work has just been started.
AS-6 DATA TELEMETERING SYSTEM
A complete model of the digital converter has been
assembled and is now undergoing test. Fabrication of the deliverable
models will begin shortly.
A second model of the Field Unit exciter is being fabri-
cated incorporating a mechanical layout compatible with space alloca-
tions.
Impedance measurements have been conducted on a 36
foot horizontal wire antenna as well as on a series of continuously-
loaded whip antennas. This data is part of the evaluation program
aimed at the solution of the low frequency antenna for the Field Unit.
Final values have been assigned to the power amplifier
matching network components based on the use of a 36-foot horizontal
wire located 2 feet above the ground. This decision was necessary in
order to allow the power amplifier development program to advance
during this period when a multiplicity of choices exist for the low
frequency antenna.. The changes necessary to accomodate other an-
tennas are minor and will not affect the basic design of the power
amplifier.
Electrical design of the several converters. and narrow
band audio filters -,for^the: Field Unit receiver is complete.
A breadboard model. of the Receive Terminal is com-
plete using only one receiver. Emphasis on this terminal is now being
placed on circuit refinements and preparing for construction of deliver-
able chassis.
Several. breadboards of the transmit terminal have been
completed and are now being tested.
SECRET
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
SDN RD8-R094:/23 25X1
Page Y of 5
Copy i of,/ 25X1
30 September E958
SUBJECT: normal Progress R.eporto Contract RD-103
This letter constitutes the Twenty-ninth Monthly
Progress Report submitted in compliance with Contract RD-103o
covering the period I August to l September 1958.
TASK 1. REDESIGN OF RS-16A
Work 'Linder this Task has been completed.
Work under this Task has been completed.
TASK 3. AS-4A HIGH-SPEED " ROCESSTNG SYSTEM
TASK 2. REDESIGN AND FABRICATION OF AS-4
The drafting program for manufacturing drawi gs of t1aa
AS-4A system is well eider way. Early emphasis was put on the
DT--4A. Transmit Data Terminal and the AT-4A. Transmit R Termi?.
nal while they are available prior to shipment.
Work on the Final Report of the AS?-?6A development
program is 90% complete, The Transmit R IV Terminal description
is approaching completion.
TASK 4. STUDY OF AS-6 SYSTEM
The Final Engineering and Evaluation ~e Lore i1~. e,,,~
edited an,, is being typed in final forme
This Document contains information aiouing the National Monte of the United
States within the meaning of the Espionage Laws, Title 10, U. S. C., Sections 793
and 794, the Transmission or Revelation of which in any mannor to an uneuthori?od
person is prohibited by low.
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
Page 2 of 5
Copy of l.5
TASK 5. DEVELOPMENT OF AS-5 SYSTEM
The digital sections of the AS-5 have been modified to
incorporate redundant slow-speed operation into the breadboard model
of the input sec :ion? All delay 2_ne.; hale been .i ecei,.red arid.. i'as -?ected
o
The recognition c''.rcla t hreadboa.r3. s near?n corn? letiiono Secn: c
6:'C114: have .'cep ?'?^~'i4:xed to incorporate -i;ie
r eed e11721r:ant mcde, Initial circuit e .? n f'' the -aced AGO 7 x_3..11
coir` lete`~!o The :.G clZ"i='~!ifier ha been de sign d and will be i ,
the near 'rutarec
Prelim nary system. redesign for the redualdz 1~ c'c1e of
one ration has been co_n-pll_eted. Several wave-shape?" circuits have
breadboarded for coimparison0 The z tore promising ones are now being
tested with the exciter.
The output circuits vviv.ch drive the Soroban CP-2 punch
have been modified to acco nodate differences from the GP ,l model.
Control circuits have been designed and are being breadboarded.
Crystal filters have been received and are being tested in
conjunction with the I. F . amplifiers.
In the exciter a stability tests were run on the local
oscillator from 0 to 550 C. Drift of 5 parts per million was initially
observed but improved insulation reduced this figure to ?Hess than 2 parts
per million. It was determined that temperature compensaticn was not
required for the selecti-re tuned circuits through the encite--. All bands
were checked for range and bandpass. It was determined that no higher
than second harmonic operation would ever be required of the crystal
oscillator. An order has been placed for fabrication of one AN/ARC-60'
kilowatt linear ampliie:?.
This Document coni?ins ins p; matron ar ccji,
States w:ihin the meaning o? f!e Espionage Laws, , NTitlatieona18,l U. S. C., Sections of the Unified
and 794, the Transmission or Revelation of which in any ions 793
person is prohibited by lee. manner to an
unauthoritoo
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
SDN RD8.1094 /2 3
Page 3 of 5
Copy.2 of 15
TASK 6.
RS-16A TEST POWER SUPPLY
The combined Final Report and Instruction Manual has been
released to publication.
repair,
SERVICE AND'SUPPORT
Two AS-4 receiver autotune motors were received for '
eturn of the AS-4A high-, speed, punches to the Soroban
company for r epair? and' adjustment was authorized.
AS-6
TELEMETERING SYSTEM
Design and fabrication of the test model of the Field Unit
digital converter is well under way. With the exception of the frequency
standard and clock pulse generators all of the converter circuits have
been packaged in a form suitable for installation in the operational equip-
ment.
A model of the Field Unit exciter has been completed and
tested. A second model is now under construction which will incorporate
necessary component changes and a new mechanical layout compatible
with the space allocation in the final package. A preliminary breadboard
of the power. amplifier has been constructed. . Tests of its components
are under way.
A preliminary breadboard model of the second converter
for the field Unit interrogation receiver has been completed.
Testing of the prototype model of the 455KC I.F.
arxa;wlif ei
for the Ease Station has been completed and mechanical. design has .eeai
started. This L F. amplifier has essentially the carne electrical c:ia_*"cec??
teristicc s the T0F0 amplifier vih'ich is used in the AS-1, uut ii: surer
for mechanically and such cheaper to produce.
Most of t e 'units of the Receive Terminal Lreadbi;ar.i have
j~eesl cwnx -ileted and tee.3ting of this Terminal has started,
T!i?s Dacumc,: '.,;_' . iniurrn lion ~f ca; L:; f!:o ~! (irny~! 7. , n of iao Uaifo
Sf fcs wi'r.'rn or fhc ES')ionj jJ Lnv.s. Tii;c d
and 794, 1!,c Ireasmission or RovoLf4m of rwrie;i in .r, U.:. ?'" "``~1Om i73
porson is prohibi'i'cd by I w. r.: r,n.r'. , : ,., u?Lr d ?.,j
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
SDN RDC4O94/?;3 25X1
Page 4 of 5
Copy ~& of
Construction of a breadboard model of the Transmit
Terminal has started.
TASK 9.
Very preliminary work on the Linear Exciter indicates
the ~ 310F1 can be channelized in contrast to the other models
which select frequency manually. This program is being carried at
very low priority in deference to work on other Tasks,
LINEAR EXCITER. FOR AS-4A
A considerable improvement in RF output signal amplitude
and stability has been achieved by the addition of several minor circuit
changes in addition to the redesign of the high frequency oscillator and
buffer driver. Several design changes have been made in the coder to
improve its manufacturability and reliability. A prototype coder incorp-
orating all design changes is now being ffabricated. To date, three units
have been released to the Production Engineering Department, These
are the receiver, power amplifier and stepping oscillators..
RS-16A BATTERY CHARGER. UNITS
A breadboard of the battery charger has been tested and
found to perform satisfactorily. By mutual agreezne nt, the battery
charger will be designed to charge only the RS-16B battery pack instead
ci' the battery packs for both the RS-16A and RSW-26B. This change will
simplify both the circuit design and the operation of the charger L'X the
fields
''r !'?,SK i2. RS-16A AN T ENNA TUNERS
A study os .1 e range c?I circuit values required to i222?::ca2
he ?atest an-anaa chartcte_.istics is bent initia e , Cunca.r;r~ ~. _a.
is being i'1.-,:rer ?u in la favor of higher p iJ i it y Task s
Additional. information coxicerning the data to be studied
was brought to light at a conference held" in Washington during tiie
T:as Docume-f eoaia':.: into -7-1 ce:inl tl:o I)cYJnsc of .'!10 uniled
Sides wi'rhia the moaninn o' : ? v sNionr.co Laws, Tiile 10, U. S. C., Soetions 793
and 794, the Irons: ;fission or ovelation of which in any mannor to on unoathorin,40
Dorton is prohibited by law.
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
SDN RD8-11094/235 25X1
Page 5 of 5
Copy off
reporting period.. The data reduction problem now appears moue hopeful.
The determination of.an information storage system is the point requir-
ing the greatest study.. Plans are being forthulated for conferences with
various specialists in the generation and analysis of this class of data.
Study of a phase modulation system locally developed has
been completed. Ita. purpose was an investigation of the optimum band-
width and channel. spacing of a multiple channel phase modulation systeme.
Although this study was conducted under a company sponsored program,
the results are directly applicable to the RS-Z,4 system. Consideration
of alternate modulation systems is now under way o
The search for an inexpensive, light--weight, static storage
system continues o it appears that a mechanical storage device utilizing
magnetic tape or some other recording media still represents a promising
approach to the problem of storing the quantity of data required.
GENERAL
August to observe work or all Contract Tasks,
25X1
25X1
remained through 5, 6 and 7 August for more detailed discussions;
Progress is generally satisfactory.
Enclosures
Copies I through 10
Informal Progress Report, Contract RD-.103
This Document cin;;,ins informs:;cn o Lig tl:o NaConcl Defonso of the Unitod
States within the meaning of t' a .':-pionae3o Laws, Ti;Io I8, U. S. C., Sections 793
and 794, the Transmission or revelation of which in any mannor to an unauthorized
person is prohibited by law.
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-03330A004100090045-4
SDN RD8 108?/40J
Page 3 of 5
CopyoL of 14
TASK 8.
ATA TELEMETERThGr SYSTEM
The active audio filters designed for the interroga-
tion receiver has been found to be satisfactory. Environmental testr
ing will continue upon receipt of components with low temperature
coefficients.
The majority of the digital converter circuits have
been assembled in a preliminary package design. The ring counter.
Barker code generator and advance programmer circuits have been
tested. Tests of the ring counter circuits indicate no degradation in
performance over a temperature range from .550 to +55o C and with
simultaneous voltage variations of g20%.
A preliminary breadboard of the Field Unit exciter
has been completed. This exciter provides approximately 15 watts of
driving power to the power amplifier over the frequency range of
3 - 30 mc, A service test model of the exciter is now being con-
structed. Fabrication of the chassis for the power amplifier is under
way, Impedance measurements are being made on a 50 ft. horizontal
antenna located 2 to 4 feet above the ground. These data are required
for the design of the antenna matching networks for both the power
amplifier and receiver front end.
Development of the Receive Base Station is progress,
inn, with the breadboard now about 60% complete.
Construction of a prototype model of the new i, f.
amplifier has been completed and it is now ready for testing.
TASK 10.
FABRICATION OF RS-16B
The production schedule has been submitted to the
Product Engineering Department. Plans call for the release of the Field
Unit receiver drawings and specifications to the production control group
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-03330A004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
SDN _-RD8 >1087 /40J
Page 4 of 5
Copy _& of 14
on August 6. Redesign of the coder and high frequency oscillator/
buffer driver circuits is now under way.
RS...16A -BATTERY CHARGER UNITS
A breadboard of the battery charger has been
constructed,, and tentative mechanical layout has been made. Con-
struction of the prototype is dependent upon receiving the necessary
components, which are on order.
TASK 12, RS-16A ANTENNA TUNERS
No work has been performed under this Task to
date. Information on critical components has been requested from
manufacturers. Action on this Task must be deferred until personnel
become available from other r, f, development programs o
Work on this Task has been postponed until Augusta
when a detailed course of action will be planned at a meeting between
Government and Hughes engineers o A tape recording of the data under
study has been received and a visual recording of it will be made as
soon as this can be arranged,
?ASf 14.
FEASIBILITY STUDY OF RS-24 SYSTEM
A study of existing modulation techniques is being
undertaken. S stem performance data on a phase modulation system
developed by is now being collected.
Various static storage systems are being considered.
Although the study has hardly been started, it appears that an all.
electronic active storage system will be quite bulky and prohibitively
expensive, ,
visited on 9 July 1958 to discuss technical details relative to Tasks 6
and 130
20 I (visited on 16 and 17 July 1958
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
16 July 1958
SUBJECT: Informal Progress Report, Contract RD-103
This letter constitutes the Twenty-seventh Monthly Progreso
Report submitted in compliance with Contract RD-1030 covering the period
21 May to 30 June 1958..
completed; reproducible copies, of all drawings and party linty have been
delivered, thereby satisfying all requirements for Task 1,
TASK 2. REDESIGN AND FABRICATION OF AS-4
Work under this Task was completed during a previous report
period. During this month, however, the Transmit Terminal was used in
conjunction with the tests of the receive portion of the AS-4A. The AS-4
Receive Terminal was used to monitor and receive local and transcontinental
RS-16 tests with equally good results .
REDESIGN OF RS-16A
Cataloging of drawings prepared under this Taal-, has been
AS-4A HIGH-SPEED PROCESSING SYSTEM
SDN RE6 ,10?32 /40J
Page I of 4
Copy j of 14
The Final Report is approaching completion. The only major
description still to be prepared is of 'the AT-4A Transmit RF Terminal.
OF AS-6 SYSTEM
The Final Engineering and Evalu,a.tion Report has been com-
pleted in draft form.
nig Dc o cec4cBro EFrcr cOlo~ oS3oc48~ 4No Cvo4'o c0 CoJio o c9 C:.o _'4 77
~Oo4ccro9~8a Oho coanina~ n4 4io 0000noCo dorm, 7410 00,
o~? U94, 4:10 ~Pan:,7 or Rovoldoil of cy~igb 8c, oety Mr.r;nor Oc 25X1
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA- RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
a~;e ?ti
Copy ?f 1
TASK S. DEVELO M)NT OF AS-5 SYSTEM
'u e PSI wo ?r~ ~" v t ~ its ~ k. o ~ L 7 Cf i t ^ r iT.^, `:
tzaed fors ff e~el? neat, L ~epwt~r.~ e c~~ ~ ?~: :?3Lc a ;: pc t, ,dri ~ a
A oeparate tihaaais is c evotod to H.2. a sp .rie c ^~eRo e a ?o A Q '.!to`3:10
fo'u the e~i,cites' is being ?izsc-o(L in cony actaon with
limina.Ty cvwiu tioE. of the design parameters of the roc"-.". ofi .litt lt^L c: ,
balanced mod ats~P o
2 o one s a pk of the final roLoQi la ?i~ e i -T.7. been modified and tested w th satisfactory p e .imn3ru'9.r r: s'~'~c" ~'t3 0 A aG cCP~;{.~
sample is being fahy:rated for fur there evaluation.
3. Work has beg n or the power ampliffi- cCDE'?oiot' ?.g c!?i1C'.:
of initial steps for procure neat of power supply co d ??ta~ ?r;3 o e te" s ioh
weight and sizes A gel aa~as?qr specification is bbase T~ ma.?rilvr ?a t~
AN/ARC-60 povie a : ripli i e o
4 Wave. sh=~ ing sir cuits have been designed ane ;aryrv ? i~
tested.ffor ffeasibilityo
5. The Fle~,owritey was received and is ?nw~ a4:
6 Breadboards of the low voltage power sup li.es r~.ave
formed satisfactorily. Erigineering models of the supplies coxa<
st ~?uction.
TASK 6
as- 16A TEST -LOO'UiTER SUPPLY
Work on the thzee Test Powers Supplies coastaucte&
Task has been completed. One pourer supply was delivered severa. a?atho
ago, while a second unit awaits shipping instructions. The third Toot } owv ors
Supply is to be GFP during construction of additional. RS- A 6A Yield? Units
under a proposed 'Mask, to aid in the testing of the finished products, `'Le
combined Final Report and "spa. stx uction Manual is being edited.
The long hours of testing the AS-4A Transmit Terminals s?e.'
veiled some minor weaknesses. Examples which were sates co ~reect:ed
W'!-3 C 02M2 42ca Goat ; C'o Cho?QO -c4 Co?c~ c 14 i
~e oaE4rvz.a O2 o oo~?e~ 04 4^0 r: ;coo k-'73' 17?4;0 00. D.
1< 4i o Voes:~~:??c:c: f2crcic9?0a 04 a ?cb Fa c ~~ :::,r.:c: ^0 ca c~.c; :-,
25X1
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
SDN R!)3-108Z/40J
Page 3 of 4
Copy g of 14
include a malfunctioning flip-flop in the DT-4A Transmit Data Terminal,
and occasional instability at the start of transmissions in the high power
keyero
AS-6 DATA TELEMETERING SYSTEM
1. A basic Flip-Flop design has been evolved for use in
the digital converter. A number of these circuits have been constructed
in breadboard form and tested in the ring counter and preamble generation
circuits of the converter o A miniature package 3/8" x 1, 6" x 3" containing
two flip-flops has been designed and will be fabricated in test quantities
early in the next reporting period.
20 Work on the Field Unit transmitter and exciter is under
ways A breadboard model of the exciter is now under testa Since mechani-
cal layout so seriously affects the electrical performance of high power RF
circuits, a strictly electrical breadboard of the power amplifier will not be
constructed. Instead,, effort will be applied to the development of a test
model having the same mechanical configuration as the final equipment,
33 During this reporting period a sub-contract was let to
for design, development and roduc i n of the transistor-
ized receiver front-end modules. on 17 June
to monitor and 1 the development progress. At that time work had just
started at Breadboard models of active audio filters for the
interrogation link receiver have been constructed and are now being exten-
sively tested.
4. Development of the Receive Base Station is progressing.
A breadboard model of the terminal is about 50 percent completed. A new
IF amplifier is being designed which will be electrically equivalent to the
AS-4A IF's, but much easier to produce and maintain.
1. Effective with this report, the monthly reporting period
is changed from the 21st to the 20th of the next month, to the 1st to the 31st
of a given month o
25X1
25X1
visited on 4 June to 25X1
25X1
'911c; C 3 o co::acp i Som4c48oa c oo* cq C: o R7c4 3 o Cc~o2ao C} C o ~;.`.::
oOoa cSC Sn fro r~c3iw~ opt C o C 2Soro~o OO3, V * O O. U. S. Q. SoGGic: 3 9
o S 4,150 YPCi947;Is k6, G' aocc~c io 0g V-40% ? i C27
c o o c7 Co c : r, ;o~dti~a? ,
o7sQa is C7o?j ~Qo bq ~cw'
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
 CnWT 'b TYQ_4 AS3? /An T
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
x-age UJL .-2
Copy I of 16
25X1
discuss a proposed data collection study..
30
phases of Contract RD-103,
visited on 11 and 13 June to observe all 25X1
4 discussed the AS-6 25X1
program in Washington 18-20 June.
5, Progress is satisfactory.
~":a [~e.r. c? c~:}c,~~ Y 9rtscau4bc:90~4~?~ BG;o^6 : o~ Co3o wo c3 C::o .`:
317C1S}o6 ao4C R~ 44~o r,:oo ~'. ~ oB 4 C- ;,cc^opo 6odq, ' Cu'D 00, M. g. ?., :.~ C4o;,~
oc c7 F~4, 4 o B~c~2 ~:sa:ca C? C?.07c PIIQ2 00 a h C2 cnv t c ,ac: Po
^s c ca~l~Cai:2cd Cry ~cta
of .
Declassified in Part - Sanitized Copy Approved for Release 2012/01/04: CIA-RDP78-0333OA004100090045-4
1. Copies 1 through 10
Informal Progress Report, Contract RD-103