• J 

-.: 

REF ID:A72338 

f ,- U, ) ~(t1!_!_ y 

M o-tob11r 1948 

c:k'paiution Vid.teds A.t..rt.renio PT9t•cst1n Corporation lit I J8 st. 

lew teJ'k Cit7 

Xr. Begnel - A.l•rt.rQlliQ 

It. ff.. 1

• Kann•• - ..U.rtronio 

•rff!ltatiY•• eta Federal Bureau ot Inffstigation,. 

TnaMU7 Depart....,.nt, Cheaioal Corpe,, C.otnl lnt•l.llaence 

Ac*nc11 Ceu.nt•r Int,tilli&"nee Corpa, 5i£ul Corp•. la"f7 

Ir• Brann - A'f'flfl S.GUJ"i t7 ACflll07 

1. Ttd.• •••ice it int.ended t." proriM m al.Us (Tlanal, su.dibl• 1.rrJ./or 

""'4ed), 1n ••~ ot sarre,pt1tious ent17 int.o any room eo •f!Jlpped. 

I. The dmce con11n• ot a 115.gnal geJWrater, 10ttnd transitte:r,. .d.oroJhone, "4•iY'fr and al4lr.l. n. d•v,~l0p;:4ert.al protot;rpe oceuplea ahout l oubio 

f•ot end W:Ul •!gh abtJut 1' pc>unde. The eiH M7 be oon.eid~rabl.1 redn 'ltd 

in the pt"od\1.0t1on 11odtl.. 'l'~• •icnal gener.....t.or and r•ceiwr WS. ll hantUe ' 

t.rll\-1.ttar...aio.NphCll'le o"wt1~s. ur. Sqr.al stated one tr:m 'll!'litte?"-~rdero­

•n• would handle a l"OQll haTinc 1000 equsr41 teet of neor •pace. The «l•vioe 

J.aa \teen t.faitff-t bf UnderwrlteT LahoTatorieo and theiJ" approval ia depenilent 

~ retQlt• ot ti•ld t•<• raot yet acinductl'Mi. 

\ 

J. f>ie •ign.al 1enerator provide• • 16 t.o 20JC mquazoo wan s1~. Thie 

cpal ie canduot.."'4 ..-r a ph)'dcal t•-· wire cironit. t "I the pr.!.IM.17 ot n ~l'&llst'omer aount•d 1n the tranllld.tter. 'Mlh •und ~raneiia.itt-9~ oondato et 

a ~ about I" ~t~r, 21• 1n dtlpth 111td 11&d• rroa 24 puge aluainun.. ni. 

· MCo;;A.;; ot the t.rkn~.tona.1r ia oonneot.d to a roahelle ult OJ"1'11tal. .rt~Jted \• t.he 11\aide o.nt41r of ttw JNll1 ,....re the electi-ical. eignols are eonnrl.iad t.o 

nund wwe• of l<i•nt.lca 1. f1'eqQ•no7. Thi, Mil d enera i• r&dLt.t•d into •pace 

md 1"9tlect.•d b.1' walls, o.1Unga, fi90re t.QJ &n7 object• thAt "1' be 1n th• 

f'Ntll. The .ta~Mnt was .ud• Wt ordin•ey lla:l.le,. •tc. 'WC1lld 11.blfOTb ab<ut 

~ ot tJd• radte.t•ct anera. Thie radiated ..und ... receiwd b7 • dnice 

lild.hr t.o th9 t.rS1oodtter aid thero tu 10Wld 1.e ON''IYerted into olectr:!O&l. 

"gnala. The \nnsdtted electrical -1«n•l• llPd t.h" reoe!ved •lect.rioal 

'1pl • u.. t•d int.o an •lcct.ronie c:i:rmdt ••re ou aipal 1• lwterodJ'rl•d 

-.cairurt. the ether. It tbe1• 1• no tre1.U•nay varlation b9t"10•1 thf' ttt0 •icnal•1 

.- oario•l• tbl other. It hOW$~r th6re 1- Ul1 -.oveme.at or • 11&ter1al body 

(llet.ween 6 1,i::?.oMe per HC •nd and 'r'/O inchea per aeoond.) in the l"OGG tiara will 

-.. a 4itteronoe b•two.n t.he NO•i'Hd rre~enc7 and th• t.rmadtted trequeD07. Tld• l'&riation 11111 degand. 1lpon tbe 1peed at not""..on and will e&.ltH a beat. 

~•M7 (betwen l' Md 200 CPS) to 1- dnol•ped 1n t~ oleatronio Jd.xer. \ 

\ \ 

..,:-- -\ 

\ '~- !.- \ 

I ' . ' • 

@'pproved for Release by NSA on 09-03 2014 pursuantto E.O. 13520 
! ,,.. __ ·~- ·~ .. ,, ... ., 

REF ID:A72338 

( ou.t.dde lontaot. Report., dtd.. 22 Oct 48, amt• d.) 

1.1Jif ndden dr t.urbul•no• ot omud.derable Mgnitud• will have the NU 

.tteot ;a.a •~Ill 'bedT· Th• trequenq Tui.atim 18 oau~ed 'b7 ut.Ul•iac 

the Doppler e.ttecrt oauMd b7 a 'bod7 acnillg in t.lw J'GOJI. The current. 

dorl.Ted t.-- the beat. trequency i• amplified and oontr9l• t-he •peratien flt a r•l.q 'tddoh in turn cont.role the al.an.(•). Tbe Mn•1t1T1t7 .t tha 

'9'fioe aq b9 al•••lT regulated ewer a Yeey wide range b7 -an• et a . - t.ant.iometer eoritrcllJ nc tbe charactarilltia• ot a high p&•• tilt er. ·rm ~-n1itidt7 will range trm. the detection ot an ignited name t.o tt.. nrm- ..... 6fteot.icm ot a aa'Vi.Qa person. Heat and saeke will not eau•• ti. dn101 

\o .,.rate. !u,e:ratur-e variation• ot les• than i • per •cond will no~ 

tlt•ot th• eapab1Ut1ae ot the device. PMMr requirm.ent.• tcr thi• d•ric• 

w1ll be ahou\ '° wat.t.s. 

4~ It. 1a belined that this detlo• mar be et 'ralue t•r the proteiation 

ot c1'"1Ptnault•, ~ooent.era net ecoupi•d 24 hour• dail7 and 'ftriou• 

iaatallat.101111 et t.ha Central. Intelligence A&•DOJ. Thi• devic• 1aa7 'be 

equipped with an audible (bell or •lnn) dnal.1 (oseilloecop!) er rec•rding (Ea\erU.n9-A.nr.•) al.an. Circuita t.hat mq not be rraW.fied b7 t1111.puinc an a'Y&llab • tor eonnectinc the dnice and th" alarm. It ls 

Mlinetl \hat t.he d.eno• itHlf i• proof apin&t. null:i.ticat.ion and tha~ 

a J'OW81"' td.lure ~ be regi.eter~d aa m alarm.. Further testing under 

utunl. eondit.ion• ie n•c•••ar,y before a decision can be mad• u to au1'~abilit7 of th• eq,uipA.•nt. for Anq Security Af;ency u••· 

J. It we ngpet..ed that one ot t.heeie dsvic:es be eecured !or tur~he:r 

test.inc "7 R• et 1.he Ageneie•, i.e., Central Intellipnoe Apnc7, St.at.• 

Dapu-t.r..ent, Counter Intel.lime• Corp• or Arlll¥ Security A1~az as a repreHntaU"f'll et all the Agenci••· Thim wa• acr-abl11 tol !Central !ntellipntt• A.genc7 and Colonel H..an, fl! Counter lntelllcence Corps. ?!'r. r.:amee ~•4 t-9 provide thu t1quipnent. U.J>tlll request. 

6. Intonllted psreonnel in the•• Yarious A.ganciee will be reque•t.•d to 

-are• up~n th• A1ena.7 to conduot the propoaed test and Ill'. Ianni!• 11111 

'be requeaied to prorlde the equiP"•nt. 

'I. A. oopy of thi• roport will be forwarded to Colonel Homan per :!de 

nqueet.. 

• 

l!l!tIAM S!lAMI 

Cbiet, Technical stat.r 

a.011%'1.t7 DiYieion 

I - ~·-I ~ .. ' .. , ' .- l:$::.. .. ~ 

OGA