CONTRACT NO. RD-128, TASK ORDER 3, WORK ORDER 3 (SANITIZED)

Document Type: 
Collection: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP78-03424A000800030042-6
Release Decision: 
RIPPUB
Original Classification: 
S
Document Page Count: 
53
Document Creation Date: 
December 22, 2016
Document Release Date: 
February 15, 2012
Sequence Number: 
42
Case Number: 
Publication Date: 
April 7, 1959
Content Type: 
LETTER
File: 
AttachmentSize
PDF icon CIA-RDP78-03424A000800030042-6.pdf2.75 MB
Body: 
__ 5X1 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 7 April 1959 Subjects Contract No. &D-128, bask Order 3, Work Order 3 Enclosed are three (~ copies and one (1) reproducible of Report On Reflex Slot Antenna Measurement Program. It is assumed that submission of this material concludes ~~ contractual obligation on subject task. It is further assumed that the Governme tFurn shed Property associated with this job will be hand-carried from by a representative of your activity. Very truly yours, Contract ministrator ATEsjfb Y M o ~`~,- ~,y. ' -- - ' ;.~ ~ r s ~L-~ -~-- --~~ e?;H; HS 19-2 the n~r?~.- :~ d~;: ~.~ cf i!~~ (!~,itod `.;talus v,?i:!,'~~, ;7 n .',rr sffh~~~:p~r~n..go {_svs, F;!:r ;3, !i , ,+~;;~'~?, :cciinn; iJ.~ 2nd 7:,'4. l~h; lrancn ir;~on cr 1~~, r^yc~lat!i~~cf i!sca~- tent~ .,~ arry manner i,~ zn u~auihu,izod persnn prohiE'aad 6y law, (?ar. I4q. Aft 3f30.5) Tt:is ,lccnment ronL;in; i~~`ormn+~ ~- -'--`-~~ Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 __.L_ _- -._.-_ _ . _ _~_ '~_ I _ _ i I _ _ __ Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 ~ - Page 1 of ~, Pales TASK URt?ER 3 Subrr~~te~i by Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 --1--_ -- _ _ ___ _ ! __.~ ~_ __ 9_ ~_ ---i i-_ _ _ _ _- Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 I INTRODUCTION II GENERAL III PROCEDURE FOR MEASUREMENTS to Antenna Gain. Measurements Withr~ut Amplifiero 2tl Antenna. Gain_Measure~nents WitAh Amplifier. N DATA g, Antenna Orientatio~~ 2, Talaulated Gain Figures Without Amplifier; Page 3 201 Graph _of Gain ~re~^ Iso~~opio. Scur~e Versus F~?equen~y ~. Tabulated. Relative Gain Figures (~a'~it,;h Amplifier) 3.1 Gr. aph of Relative Gain Versus Frectuen~~ ~o Antenna Patterns Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 ~~ ~. _ _.__..~--.I_ _ -_~~a_ .. Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 I INTADDUCTION The purpose of this fob Kan to obtain gain. and pattern measurements of a (government..furnished..experimental antenna,. aver. the frequency range of 100 to 10000 megacycles. II ~OENBRAL The..gain.of,.the teat antenna_xithnut..its.._amplifiez..xaa determined over a range of..fregnendes _from.100 to 10000 megacycles at 200 megagrcle intervals. This..ga3n_of_the test antenna aver an isotropic source xas determined hryr comparing.. the gain of the teat antenna xith a standard gain antenna. !or the range of frequencies from 100 to 1000 megacy-clea dipole antennaa.xere used_aa the.standard.gain antenna and fran 1000 to 10000 megacycles. standard_gain..horna xere uaed_for compariaaa. 83nce the teat antenna. developed. its... greatest gain at frequencies of 2lt00~ 520, 7l~d0, and 9600 wegaq-cle.a~_. a totalr.of. 21~. anterma> .patterns xere taken at these frequencies._ 3is patterns xere taken.st each frequency three for three poaitiann in _the. E plane..aad.three for the three poaiticma in the B plane. ~ relative.. gain.: toz__thn..teat.. antenna...xith respect to a standard gain barn xss_. determined xith. the. teat mmplifier. in the circuit foot each antenna._. This_.gain .xaa ta~nnd_ at. 200 me intervals frog 4200 to 8200 megagrclea. -3- Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 ITT PROCED`JR~, FOR I~ASUREMENTS Yo Antenna Gain Measurements Without Am~ie?~ The test antenna and standard gain antenna were placed side by side and a IN~.SE a;rystal was pla~,ed in the det,ect~r of the standard gain antenna. The signal from the standard gain antenna was registered on the standing wave incli.cator and.. the deteLtar was tuned fr~r a maximum signal. Then the signal source. was adjusted iznt.il. t~ne stand~;rag wave indlicator was zeroed on the thirty db scale, The standard gain antenna was clisconnevted from the standing. wave indicator and the crystal was removed from the detector mount of the standard antenna. and placed in the test antenna '(the polarity of the crystal. being observed at all times~o Then the test antenna was connected to the standing. wave indicator and. the.. relative gain in decibels was obsex~-ed and data recorded. for eavh p~asit_ion sh~w:1 irn figures one9 twos and three. Cara was takes, to assure constant power output from the signal source once the indicator was zeroed on tthe '~0 db scale, Througho~~xt this procedure.. a single TNI~l~E crystal. waw .used i.n both the test antenna and standard gain. antennao. Th:~s procedure was rep~a-t~ed at X00 me intervals over the test range of f?~equenvies. 2. Antenna Gain Measuremen~.~s~With P~r~p4Lif.e:r This procedure was iden~~ical to the Lase w?~#hout the amp~.ifieg? except the test amplifier was added to the ~:~_rcui~t between the standard gain or test antenna and the standing wave indicator. The standing wave indicator was. zeroed. an the 20 db scale instead of the ~0 db s~,ale? sinc;~e the amplifier raised the noise level along with the received sgna:~ approximatel3r 10 db. Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 ~ _ ~ !~ _ ~ ~ Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 3e Antenna Patterns Three azimuth patterns were. taken ~.n the H p~.ane b~ orienting the test antenna as .shown in figures ones twe~9 and three and rotating the test antenna. in the p.~.ane where ~ remains constant at 90 degreesa cp vases from zerr, to 360 degrees. Three e7Levation patterns were taken :gin the E p~.ane by orienting the test antenna as shown irx figures ores fo~r~ and five and rotating the test antenna in the.. pane where ~ takes o~x the two vai.raes of vero or x.80 degrees and 9 varies fraai zero to 360 degreesp The transmitting antenna, transmitted E? po~..arization for a~,j patternso The above procedure was..repeated for the four frequencies of greatest gain. yie~d3.ng a trsta~_ of t:wenty? four pat:f>e~~nso 'i~~ -~~t:r-~ ;.; a.~?anged 3n the order shown ~xi t~~ie Tab~.e of ContentWa _~e Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 ~ ,~ - !. L ~. .l I I _ - - ---- Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 8=90? ~s 90- ie = 90? ~_~? F/GUr4E' ~/ TEST AN JBNN.s O~Y/EN rA T/ o,r MARC// /0, /959 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 = ~'~ Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 F/GuRE ~2 TEST AiV T~NNA OR/e~~V TA T/oiY MaRCy /o~ /9 s9 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042~6~ ~ ,! ! ---_ Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 B = 90' ~ = 90' F/GURE '~3 T~'s7 AiY7~iYNA OR/F/YTAT/on/ MARCH ~~~ /9 S9 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 ~'y Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 B = 90? ~' 90~ TEST A/YTE/YA'A OR/E/Y7'AT/oA~ /ylARC~Y // /9S9 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 9~ O~ TrsT AN TEiY il'A ~ R/B~v TAT/oy A/A rQCH // /9S9 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 ~__~_.. ti ~ -------- --._-_ _.----- Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 ` - ~ Page 1 t~A.IN DiATA p~.eq~DC~ - All f~equeacies are recorded in mega;c~-clea per second, Qa3~ _ The gain recorded in positioona one, t,~o, and three is gain Doer an isotropic scarce in decibels. Hoo 1 -see figure ~ 1 pa 2 -see figure goo ~ Noo 3 - eee l~gnre 1100 3 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 I t. _ __ Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 FrequeutQ Position Fo. 1 Position No. $ deb Rt0oL08 Position I~oo 3 100 -40 -40 -40 200 -!t0 -40 -40 1100 -2L 3 -20.7 -24.4 60D -28.9 -29.4 -29.9 800 -26.9 -27.9 -30.4 1000 -26.9 -32.4 -30.9 1200 -1?.6 -lb.b -16.6 1400 -16.5 -15.3 -15.4 1600 -15.2 -14.2 -14.2 2800 -15.4 -17.3 -15:9 2000 -17.2 - 9.5 .-11.2 22?0 ? 7.7 + 5.5 - 4.5 2400 +14.1 ? 2.0 - 8.5 2600 - 4.95 -13.85 -17.45 2800 -13.4 -15.6 -11.1 3000 - 9.63 -15.53 -14.13 3200 -13.1? -13.6? -12.97 3400 -14.1 -u.2 -14.2 3600 -13.74 -19.64 -20.74 3800 - 9.77 - 9.27 -18.gT 4000 - 9.3 - - 6.8 -14.6 4200 -21.8 -21.8 -21.8 4400 -20.1 -g0oi -~1 4600 -18.8 -19.3 -15:6 4800 -1905 -18.5 -19.0 5000 -18.2 -11.? -14.2 5200 - 8.0 0 - 2.0 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 Declassified in Part -Sanitized Copy Approved for Release 2012/02/16 :CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 RI LTI1 " DM A tr goencier we re rsccrdsd in magaqrul" P waaad. The tsbulated Sal* des romwdsd 3a dreibmis re i esrsts the dittez **os is S"a bstrres wfr tolpt *wt "m with aatyfliti.r and the mil P U anteala pit o Psaitiass l4, 1 -arse tigers no* 1 10. 2 - see fire Ito,. 2 Now 3 - a.s firms Ito. I Iadicades regiart at swiss (tbe testing 'a3gsal mw son" ed but recording iaatx .t indicated a Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 aoas~a. a~ f~s- WACO 4600 how 5m -M0* 5200 -21,0? 5600 -10.0 5800 -x,1?3 6000 -m0 64W 6600 6800 - 9.0 -100 -'6,6 0 905 -~06 -10.2 -12.2 -1765 -29,60 -16.0 ` -1lk.O -woo -1840 4-0 s -0 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 X80 NO. / E8 V e? 9o? DATE MR. y~ /95! E 0- VAR 25X1 I FREQUENCY 2400 inc Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 NO.2 NC. OATtV4A:4 ~lr3o 25X1 E9 L--" E4' 6. I5~ ~+. V/4 R. FAEOUENCY fgooMc Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 120 ( \ \ X \ N,-l +:.._ ; I ~ \~Z Y / / / 7240 NO. 3 DATE MA R. 'I, /951 EE 9. 00 40? VAR: 2*Oo Mc 270 25X1 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 L~_ Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 25X1 NO.4 E 0 e DATE AMR. Yj/M9 E 8 - YAR 0. O! FREQUENCY a4W MC Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 DATEA9.4E -YllSI E 4-y5? FREQUENCY 2NDe Mc Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 NO.6 E8 8 ? VA A. FREQUENCY Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 270 120\ \ \ X \ X - * ' ~ l I ? ,1 \ ) . , ' ' ' X / Y / / /240 DATE.HA,e 3/ /1S' E 0 ? VAR. FREQUENCY 5200 MG 25X1 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 25X1 DATE MAR, 3j IMP E0 8 ?s' 4~ ? VA)?. FREQUENCY 3'2op Mc Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 l I_l_ II Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 DATE AMA. 31 1959 E ~? VAR. FREQUENCY Soo MG. 25X1 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 L 9._I !I Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 No. /0 E0v 8- VAR DATE AAA. 3319 .E ~? 0? FREQUENCY SZOO MC Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 120\ \ \ X N X /240 DATE VAR. 3) 190 E 4? ys? FREQUENCY SJoo MC- Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 25X1 NO. /2 DATE #AIt 3 /fisj E9 E 9- VAR ~? 900 FREQUENCY 52(>,o MC Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 8' 90? ? VAR FREQUENCY 'f*IQp MG DATE MAR. 2 )9$ E8 / E?. No. 13 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 -J j Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 NO. E9 /' DATE A14~ IJe~w E 7#oo Ate Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 I l Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 OATS AJAR. a~ /'S~i E 0 ` VAR 7#0 o Mc 25X1 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 25X1 NO/G VAIL AR:R,1959 E9' E0 e - VAR FREQUENCY ?Yen u,, Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 240 120\ NO. *7 E 8 i/ 8 " VAR. GATE *AR. Z~ /tF9 E 270 25X1 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 1$0\ X / X 1240 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 FREQUENCY NO. j9 DATE MAID 311959 E E em go* VA It Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 90! 1 ii11 1 i'r---TE-=~`' ._1270 120X X 240 25X1 NO.20 E 9 '- ? 9?ys? DATE MAR. 311959 E 0' YAR. FREQUENCY 9400 )R&, Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 DATE AIAR 3,1959 E`4 0- VAR 9606 AtC Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 25X1 NO. 22 DATE MAR. 3 J93o E8 E, 9 VAR FREQUENCY %oo Arc Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 270 1201 X, /240 25X1 NO. 23: E / 8 ? VAC QATE/-MR. 3 /11k, FREQUENCY 9`D0 MC 25X1 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 FREQUENCY 9400 Ale 25X1 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042 6rX1 GUIiiMUhI~~~ i ILL X Attentions Subjects Proposal for Nlceivine ,M Enclosures (1) One (1) copy (2) Three (3) ce detailed (3) One (1) P co: Gentlemens Terms and Conditions costtbsreeakdeun Technical Proposal In compliance with rec*nt re mat of the addressee's representative, there is forwarded herewitk technical and cost plus fixed fee pseposal in 25X1 t breakdelua of d cos fy A detaile fixed 1 ' din l i g u nc the ameunt of $24,397.03, this amount is furnished as enclosure (2). It is estimeted'that tb*...antennas can be delivered within fifty-five (55) days following receipt Of .# fully executed contract as well as authorization for 500 hours of overtime premium pay for the labor categories indicated on enclosure (2). It is understood that your requirements are for a group of antennas with the following general specifications$ 1, 4. 35 ? . ,$1 tf Size - Maximme height 23.6 inches Case I - Azimuth Coverage - 2700 Frequency - 1-2 kmc; 2-4 kmc; 4-8 kmc; 8-10 kmc Polarization - Horizontal Output - 50 ohm coaxial line (Type N connector) Size - Maximum height - 23.6 inches Case II - Azimuth Coverage - ui-directional Frequency - 550 to 1100 me Polarization - Horizontal Output - 50 ohm coaxial line (Tip* N connector) A ,T. Z/ _ A lnr...-, 9 March 1959 tot _ 7 7--- EY DATE ~~ DPI TYP_H -~-^'- . COMP CONFIDE DRIG CLASS .~-- PAU?' 61' AUTHs 01 ..YT REV This docurnert _ .r..tlir_: ii^ l c."ectin^, th^ national ...; Ur.. will _.: the r:_canincg cf tlo ".~ Scc ti _n3 793 and 794. ita irax.s:.:;` ii )n or the xuv..aiion of its ccrii_ is in any manner to an unauthorized rercnn in rirnh hits rl by 1rrw CONTROL NUMBER Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Tot -2- 9 March 1959 In addition, this antenna shall be rotatable by means of a motor driven pedestal, operated by remote control, and the pedestal shall be connected to a remote azimuth indicator by a Synchro generator and follows arrangement. The available power source is 115 volts, 400 cycle, A.C. 28 volts D.C. is also available. An additional identical pedestal, control box and indicator, less antenna, is also required. Case III - Azimuth Coverage - 2700 Frequency - 550 - 1100 me Polarization - horizontal Output - 50 ohm coaxial line (Type N connector) Size - Maximum height - 23.6 inches Case IV - Azimuth Coverage - omnidirectional Frequency - 50 to 100 mc; 125-250 me Polarization - Vertical Output - 50 ohm coaxial line (Type N connector) Size - Maximum height - 23.6 inches By mutual agreement, azimuth coverage is defined as the beamwidth of the free space pattern of the antenna at nominal 6 db points. The relative power level could vary from 3 db to 10 db at the edges of the coverage region and still be acceptable. here necessary, coverage may be obtained by the use of two or more antennas and the anaroDria sector selected externally. (Switching not supplied by Elevation coverage is not specified. It is understood that general coverage from horizon up is intended. Minimum electrical tests to determine proper operation of each antenna are to be made. This would, in general, include pattern, gain and VS11R Measurements at the ends and center of each frequency band. No environmental tests are to be performed. Because of the extreme urgency of the requirement, the antennas to be delivered are engineering models. There are no special materials or finishes required. The antennas are to be fabricated from engineering sketches, and no drawings or reports are to be delivered. One reproducible copy of pertinent test data will be supplied. Submitted as enclosure (3) is technical proposal outlining the anticipated method of accomplishing the proposed work. 25X1 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Cv VDEi?MIra,, 9 March 1959 This proposal may be considered firs for a period of ninety (90) days from the date of this letter. In the a entl lis awarded this particular procurement, it is essential that the terms and conditions as outlined in enclosure (1) be given serious consideration in the preparation of a contract. We appreciate the opportunity of submitting this proposal, and in the event any additional information is desired, please advise. Very truly yours, ATEzjfb Contract Admini rator 10.2 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 _I. Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Case I An antenna receiver group is required which will provide 270 degree azimuth coverage and above horizon elevation coverage over a 1 to 10 kmc frequency range. This frequency range shall be broken into four convenient bands i, e. 1 to 2 kmc, 2 to 4 kmc, 4 to 8 kmc, and 8 to 10 kmc. The polarization of these antennas shall be horizontal and the antenna shall terminate in a 50 ohm coaxial line. An antenna particularly suited to these requirements is the T-fed slot. This device is essentially a coaxially fed waveguide slot. It differs from the wave- guide slot, however, in that it is fed through an impedance matching conductor within the slot and makes the antenna operable over a 2:1 band. The radiation pattern is left unchanged by this modification. A slot radiator can be expected to provide wide coverage in the plane of the narrow dimension. T-fed slots having-a narrow aperture dimension of .20X and a wide aperture dimension of .621K provide minimum coverages of 135 degrees at the 3 db points in azimuth and from 50 to 70 degrees at the 3 db points in elevation. Since the electric vectors are directed across the narrow aperture of this antenna, it will be receptive to horizontal polarization in this position. Two such antennas in the same plane with an angular separation of 135 degrees should provide the required 270 degrees coverage over a 2:1 frequency band. The largest single antenna will operate from 1 to 2 kmc and be 7.416 inches high, 2.460 inches wide, and 2.410 inches in depth. The antenna operating from 2 to 4 kmc would be 3.764 inches high, 1.282 inches wide and 1.232 inches deep. The T-fed slot designed to operate from 4 to 8 kmc measure 1.929 inches in height, 0.690 inches in width, and 0.650 inches in depth. The smallest of the slots, operating at from 8 to 10 lame would be 1.018 inches high, 0.396 inches wide, and 0.346 inches deep. These figures assume a maximum waveguide thickness of .050 inches. These antenna pairs will then be stacked vertically with an overall height of not less than 13.480 inches, well below the maximum allowable height of 23.6 inches. Each antenna will be fitted with Type N receptacles. This group would then consist of 4 stacked pairs of T-fed slot antennas which would provide horizontally polarized 270 degree radiation coverage over the frequencies from 1 to 10 kme. The approximate configuration of this array is shown in Figure lA. An antenna is required here which will give unidirectional coverage from 550 to 1100 mc. It is to be receptive to horizontal polarization and terminate in a 50 ohm line. The entire configuration should be rotatable. B cause of ready familiarity with its design and the ease of its construction, roposes the sleeve dipole antenna as one which will meet the above specifications. The sleeve dipole is an antenna which produces a doughnut shaped pattern concentric with the axis of the radiating element. It is, therefore, omnidirectional in one plane and two-lobed, in the familiar "figure-eight" pattern, in the orthogonal plane. Blocking out of one-half of the figure eight will be accomplished by locating a reflecting plate approximately one-quarter wavelength behind the radiating elements. The sleeve configuration on the dipole is basically a balun which converts the unbalanced coaxial line to a balanced line thereby providing the impedance characteristics for broad band operation. A dipole with balun will be constructed with maxim= dimensions of approximately 10 inches in width by 1 inch in height by 6 inches in depth. These dimensions do not include the reflecting plate. This plate will be designed to produce symmetrical field Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 patterns with minimum side lobing. Its size will be well within the maximum allowable height. The dipole will be terminated in a Type N receptacle and will provide a better than 2:1 match to 50 ohm line over the desired frequency band. The antenna will be receptive to horizontal polarization. The antenna will be mounted on a motor-driven rotating pedestal. The drive motor will operate from a 115 volt, 100 cycle, A. C. source and will be reversible. Limit switches will be provided to allow a maximum of 370 degree of rotation. A synchro generator, also 115 volt, 400 cycle, will be incorporated in the pedestal. A remote control box with switches to control the rotation of the pedestal will be provided. This control box will also incorporate a synchro follower and position indicator dial to indicate the antenna orientation. Fifty feet of interconnecting cable will be provided between the control box and pedestal. The approximate configuration of this antenna and pedestal are shown in Figure 2. A duplicate pedestal and control box, less antenna, will also be provided. The sleeve dipole with plate reflector permits an unusually rugged mechanical construction with a minimum of conflict between electrical and mechanical design. Its broadband impedance characteristics and desirable radiation patterns well qualify the proposed antenna type as one which is suitable for the above application. Case III The functional requirements in this case are exactly as those stated for Case I save the frequency of operation which is 550 to 1100 mc. As in Case I,~ proposes utilization of the T-fed slot pair oriented to provide illumination over a 270 degree sector of the azimuth plane. Due to the longer operating wavelengths of Case III, the T-fed slots will have dimensions approximately twice those of the largest slots in Case I. Each slot will be 11.732 inches high, 2.164 inches wide, and 2.414 inches deep. The Type N receptacle on each slot will add approximately .734 inches to the total width of each antenna. These dimensions assume the use of .050 inch waveguide material, The antennas for Case III will be separate from those as outlined for Case I. Case IV The antennas required here are to provide omnidirectional azimuthal coverage in two bands i. e., from 50 to 100 mc, and from 125 to 250 mc. They are to be receptive to vertical polarization and terminate in a 50 ohm coaxial line. Most omnidirectional radiators such as discones, quarter-wave stubs, and dipoles that would apply here have a serious size disadvantage. They would greatly exceed the minimum allowable height. An antenna which does have the omnidirectional properties of the above, is vertically polarized and is still within the minimum height is a coaxially fed bow-tie shaped stub. The stub, since it is bow tie shaped, has a height of only one-eighth wavelength. One of these antennas on a ground plane will give the coverage desired in each band. The larger one, operating at the lower frequencies, will be approximately 20 inches high, It will be out from a copper clad teflon material and fed coaxially, the inner conductor connected to the stub and the outer conductor connected to the ground plane. Similarly, the antenna operating in the 125 and 250 me range will stand approximately nine inches tall on its ground plane and be constructed of the same material. Both antennas will be outfitted with Type N receptacles The teflon will be mounted securely onto the ground plane and provide a solid support for the conducting Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 NI Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 portion of the stub. The approximate configuration of this type antenna is shown in Figure 1B. Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 POLE RV.==Le,:.O-T t v~.~~y3~1~1 W Irrt wA V::~4Tatt? Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 I 4--D Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 A*-SrEVjf,.)A CwsTSR. 25X1 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 TERMS AND CONDITIONS The estimates for direct labor in our cost breakdowns are based on average hourly rates taken from our latest biweekly pay period and in those cases where the work will be'performed beyond a six (6) month period, we have included in our detailed cost breakdowns an estimated amount to cover anticipated labor increases which we expect to experience during the life of the proposed contract. This is based on our past experience since June 1954. It is not anticipated at this time that additional employees will be required to perform the work outlined in the applicable specifications to this project. We represent that we have not employed or retained any company or-person other than a bona fide full time employee to solicit or secure this contract, and have not paid or agreed to pay any company or person any fee., commission, percentage, or brokerage fee contingent upon or resulting from the award of this contract. We do not anticipate subcontracting any of the engineering and development work in- volved in this proposal. All of our cost-plus-fixed fee contracts with the Government are amended on a calendar year basis to incorporate the fixed overhead rate negotiated with the Navy Department. The Navy Contract Audit Division is the cognizant Government auditing agency for our Company. The current negotiated overhead rate article in ASPR is satisfactory; however, it is suggested that the following paragraph be incor- porated into the schedule of the contract. "For billing purposes, the overhead rates acceptable to the Contracting Officer or his authorized representative will be applicable subject to adjustment and conformity with the ASPR clause entitled 'Negotiated Overhead Rates.' The first period as contemplated by Para. B of the Clause entitled 'Negotiated Overhead Rates' will end 31 December 1959 and subsequent periods will be succeeding calendar year periods or such other period as may be mutually agreed to." We wish to advise that our travel policies were revised and approved by the Gov- ernment as of December 1958. It is imperative that the contract make provision for subsistence and travel as direct charges as follows: Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6 Page 2 "The cost of necessary travel and subsistence will be reimbursed to the Contractor at actual coat or on a per diem basis consistent with the Contractor's standard policy for the labor category concerned, provided that, such expense is chargeable directly to this contract in accordance with the Contractor's established method of distributing such expenses, No cash discount is offered for prompt payment. Our terms are net 30 days. In the event an award is made too it is assumed that the contract will carry a Defense Order Rating, together with a CMP allotment for critical materials. Unless otherwise stipulated in our proposal letter covering this procurement, we do not anticipate the procurement of additional facilities, machine tools, capital equipment, test equipment, etc., in order to perform this work, which will be charged against any contract resulting from this procurement. The prices quoted in this proposal do not include any state, local sales, use or other taxes, but do include all applicable Federal tames, including Federal excise taxes and other applicable state and local taxes in effect at the date of this proposal. It is not anticipated that any royalties will be paid for the use of inventions or as fees for technical services or engineering assistance. Financing in the form of advanced payments and/or loans will not be required, This proposal is submitted on the basis of the contractor's being reimbursed 100% of coats incurred. In the event this particular procurement falls within the re- quirements of J 'R 3-I04.3(d), where interim payments will not exceed 80% of the costs incurred by the contractor, we reserve the right to revise upward the per- centage of fixed fee indicated in this proposal. In this connection your attention in invited to paragraph (d) of ASPR 3-404.3 which states in part, "Application of this policy need'not affect the method of payment of the fee, but the extent of the contractor's capital investment in the performance of the contract will be taken into consideration in fixing the amount of fee or profit." If this proposal is submitted on the basis of any form or type of fixed price, it is imperative that any resulting contract include the standard A!R provision for progress payments in the amount of 70% of actual costs incurred. event of a conflict between the terns and conditions contained herein and proposal letter, the contents of the proposal letter will take precedence, Declassified in Part - Sanitized Copy Approved for Release 2012/02/16: CIA-RDP78-03424A000800030042-6