-... REF ID:A67135 

~L 86-36/50 USC 3605 

:to 3 . 3 ( h) ( 2 ) 

~AJmHU "OR 'dl. RORFR'I' :

1

\CK,Jm, ::! ! l'.RWll ~.IB SOOOR!TT 0011-'IT'l'EB 

SUh.JiCT1 Evaluation ot PortugueH CCllaaniaat1on Seourit.7 

F.:ncloeure: Copy ot Par. AS(b) ot I.natruetion• .tor Uelne. ~ri;,;x L tea 

2. a. ~e ne1r eleMent conei.at1 in the tact that the ·:iortugueae 

a.1"9 evidel"ltl:r cncounteT'ili-; techllical diftiCl.tltiea in the use ot their 

TYf£X nachinee, which were !'l"OVidr by the f?r1t1ah to all "" 11•0 1ourn- ~Mte tor the tranmiuion of cnu·rc or other alaeaitiecl "·no inf'o...-

tion. 

b. 'lbese ditrtc11ltiea Jl&J' cane t'rcln1 (1) ~ti en1 fir, of thia 

machines, which are old am require core or leea continuoue Malnterance 

to k•p them in proper working orderJ or trom (2) wrora mar!e by 

operating per11011nel 1n setting 'II> the k8J11 at either or both ends or 

t.he circuit • 

.3. a. It ie not :-oaaible to at.ate to 1Plicb aotll'Oe either or J.>oth 

t>1: the two 1netancee menticaed in riar. 1 abaft beloac. 

c. Neither cu• involves eel"ioue dBll'.age t.o •CUl"l\7 bllt, the 

;•:Ltteiin tor po111bq eeriou• -riolationa haa been ..t. 

\\ 

4. Repetitions I 

rnpreaent. detinite 'd,_o..,..ia""""t,...l'"""o-ne____,c,..f'"""th....-•---.-irua~t-ru_ctl.,...,.,-one--::i:-or-o-P1-K--:Ulfl:-:-----:th~e----' 

TY' .... X s:v-tea, as aet fOl"th in Par. SS(b) of "?nltnot1._. for \he Uae 

a.~ Sate CUet.cd7 ot the TY1U Iii.chine Yark II with st"'Pla SettlrJa•"• 

2 cony of which paragraph 1• attached. 'l'hie br1ala up the qlllMtion ot 

trainir.g in the u.e of 'I'TP!X an•' in the r:aa:lntananee ot the maoh1m 

iteelt. 

eclassifi ed and a roved for release b NSA on 06-18-2014 ursuant to E .0. 1352 

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22 October 1951 

SUBJ'ICTs Bvaluation ot Portuguese Cammunication Security' 

5. The situation as rega:rda trainiJJg in TIPIX operatlon and maintenance as stated b)" CDR Mark LITTLi, USN, the U.S. member anl cha:!nlan 

ot the '8curit:r Coordinating Committee, ?H1.T01 ia aa follows: (1) the 

maintenance if: performed b7 the nat.iona which hold the machines, the 

British providing the necesaaey spare part.11 (2) technician• ot the respective nations are trained either in London or in Washington (whichner is closer} and are given a 2-weeke• courae in operation techniq1111a 

and a 6-woeka' course in maintenance. These 1natructional courses I shog1d be ~H tgr tba ll!PllOM I 

6. Juat. half the attention of the ?ortucuese can be directed to 

securit7ri.ot.ticns or thi• t1'.P8 and their elimination cannot. clear]T be 

aeen at tide -.ent. It ia Aggested that we discuea the probl• at an , ear]Jr date with a view t.o uoertaining whether the pJ'Opoaed approach to 

the Port...-••, to be made soon bT the tJ.S. Allbaaaador, oan be expanded 

to include 1nt'onaation whieh might lead to the elimination of thia 

sOUl"ce or 1nM1urity as well aa or the others thue far encountered.. 

PL 86-36/50 USC 3605 

EO 3 . 3 ( h) ( 2 ) 

WILLIAJl F. FRIEDMAN 

/•FSA Jlell.ber, USC IB Securi t;y Comm1 ttee 

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2 
• 

REF ID:A67135 

BECRElJ • 

{.',;. ( "' -. 

CH\ T''l'1'1't 6 ' 

' CHFCKS A?"'> J'f' ::V.'tl'!'ICIRS. 

85. Requeata tO'r cbecke and repetitions and repliea thereto .may 

be made in plain languuge 1t only external. details of the i."'2.•lginal 

oypber mau.ae are crnoted but uuat be in c,mer it internal det.aila 

are :retened to. , 

~lee: 

(b) ].n CJEl!r 

"C&ncel rrq 2AB237 P..epetition toll•• h~tb". 

('lbie mat be sent ae an entireq fresh Qesaage 

With an unueed indicator. 'Da• ihll.cator ot the 

me•aage bein£ repeated met. not. be ueed again.) 

"lV 2AR237. Insert order u-.t waa C •,ft t'R F D". 

"Your 2AB237. Repeat wol'de between UAtlantic" 

and "iumdillte]1" • 

1" 1 \I -1, 

ies_6_Rg£ ~ 

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