CABLE ON SIGNALS

Document Type: 
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP78T05447A000400010003-8
Release Decision: 
RIFPUB
Original Classification: 
T
Document Page Count: 
2
Document Creation Date: 
December 28, 2016
Document Release Date: 
September 13, 2007
Sequence Number: 
3
Case Number: 
Content Type: 
CABLE
File: 
AttachmentSize
PDF icon CIA-RDP78T05447A000400010003-8.pdf181.54 KB
Body: 
,-. .?nctr, RI7G PART ONE. Approved For Release 2007/09/13: CIA-RDP78TO5447A000400010003-8 MISSION ONE SEVEN TWO FOUR FOLLOti5. FIRST THIRTY MINUTES, MULTIPLE SIGNALS WERE INTERCEPTED ON BOTH SIDES OF THE AIRCRAFT. THERE WERE AT TIHES TOO MANY SIGNALS PRESENT FOR ALL TO BE ANALYZED. ALL SIGNALS LURING THIS TIME ARE BELIEVED TO BE FRIENDLY. FROM 0030 TO 0135, NO SIGNALS WERE PRESENT. AT 0135, SUSPECTED SHIPBORNE TYPE RADAY WAS ENCOUNTERED AND CONTINUED, EXCEPT FOR OCCASIONAL SHORT BREAKS UNTIL 0747. FROM 0747, TO THE END OF THE MISSION, NO SIGNALS WERE INTERCEPTED. THE ONLY UNUSUAL OCCURANCE WAS THE CONCENTRATION OF RADAY THAT STARTED BUILDING UP AT 0630 1/2 AND LASTED UNTIL ROUGHLY 0715. AT 0645, THERE WERE AT LEAST FIVE SIGNALS PRESENT AND POSSIBLY MORE, AT THE SAME TIME. THERE WERE TOOMANYTQLWI1 SIGNALS TO SEPARATE AND ANALYZE EACH OF THEH. THIS CONCENTRATION COULD HAVE ORIGINATED FROM A SMALL CONVOY OF SHIPS, AS MOST OF THE ONEEXPLAIN PARTDCULARAAREWOULD SIGNALS AREEUSUALDAMTO BE OUNT OFIRA.DARrIIN ATYPE THE MORE THAN FREQUENCY BAND. PART TWO. SYSTEM I GA B - S. TONE LEFT SIDE OK. TONE RIGHT OK. BUZZER CHECK BOTH SIDES OK. _ _ 0000 START - HI PRF RIGHT SIDE WEAK. 0001 MULTIPLE SIGNALS RIGHT SIDE' TOO WEAK FOR ANALYSIS. 0003 1/2 MULTIPLE SIGNALS BOTH SIDES, STRONG. 0005 HI PRF RIGHT SIDE 5.5 SEC S/R. 0005 1/2 MED PRF RIGHT SIDE 17.1 SECS/Re HEFFSECIS/ t DIFFERENT HI P RF LEFT SIDE 5.5 , SIDES. 20005 1/2 MED PRF RIGHT SIDE DOWN. 0010 HI AND MED PRF LEFT SIDE STILL PRESENT. )OWP0011 HI PRF 5.5 SEC SIR CHANGED TO RIGHT SIDE. 0012 HI PRF APPEARS TO BE, ZERO DEGREES TO 150 DEGREES FROM AIRCRAFT. 0013 HI PRF NOW BACK RIGHT SIDE. MED PRF LEFT SIDE DOWN. 0017 1/2 HI PRF BECOMING WEAK. STILL RIGHT SIDE. 0026 , HI PRF RIGHT SIDE HEARD OCCASIONALLY. VERY WEAK (IKC TONE RUNNING 20DB). NO SIGNALS AUDIBLE. 0030 HI PRF RIGHT SIDE DOWN. I~ ' 0031 ICW TRANSMITTED THEOOCHER. LONG G F OLL OGLED D BY S I EACH 0045 NO SIGNALS AUDIBLE. 0100 NO SIGNALS AUDIBLE. 0115 NO SIGNALS AUDIBLE. 0130 NO SIGNALS AUDIBLE.. 0135 ONE ILLUM MED PRF LEFT SIDE, WEAK. 013/.. 0136 SIGNAL NOT STRONG ENOUGH TO GET ONE FULL SWEEP. 0135 S/R IS JEMY SECONDSBM SIGNAL STILL VERY WEAK. 0143 SIGNAL STRONGER SOMETIMES HAS TWO ILLUMS APPROXI0.2 SECONDS APART. MAY BE SIDE LOBE. NOT HEARD ALL THE TIME. DOUBLE 0145 SIGNAL FADING. STRONGEST FROM 0143 TO 0144. ILLUM NOT HEARD DURING THIS PERIOD. 0152 SIGNAL DOWN* DOUBLE ILLUM NOT HEARD WHILE FADING. (IKC TONE RUNNING 0200 NO SIGNALS AUDIBLE. 0215 NO SIGNALS AUDIBLE, 0224 1/2 MED PRY RIGHT SIDE 6.2 SEC S/R. CAME ON ABRUPTLY AND STRONG' Approved For Release 2007/09/13: CIA-RDP78TO5447A000400010003-8 0226 n T /",AT AT T% ^T TTkT nTl'ne'.r.-. A 0 Approved For Release 2007/09/13: CIA-RDP78T05447A000400010003-8 - 450? irv nu4;lw"'r"4 a \ll\l. lUIYL. KUPi'4ll'l(a - 16UIJ). 0235 MED PRF RIGHT SIDE, WEAK, ONLY TWO ILLUMS-HEARD. 0245 NO SIGNALS AUDIBLE. 0246 MEDPRY RIGHT SIDE, WEAK. (S.2 SECOND SIR. SIGNAL SAME AS INTERCEPTED AT 0224 1/2. 0249 1/2 SIGNAL DOWN. STRONGEST 0247. 0300 _ NO SIGNALS AUDIBLE. 0310 END REEL NUMBER ONE. START REEL NUMBER TWO. 0314 MED PRF LEFT SIDE. ONLY TWO ILLUMS HEARD. ESTIMATE PRF 450 - 500. 0316. .TWO MORE ILLUMS HEARD, (IKC TONE - 22DB) . SIGNAL VERY WEAK. 0319 SIGNAL NOT HEARD SINEp0316. BELIEVE SIGNAL DOWN. 0321 MED PRF LEFT SIDE, WEAR, POSSIBLY SAME SIGNAL AS INTERCEPT AT 0314. 0324 SIGNAL VERY WEAK HEARD OCCASIONALLY. 0325 SIGNAL STRONGER, SIR 5.4 SEC, ESTIMATE PRF 450 -500. 0327 MED PRF RIGHT SIDE, BELIEVE SWME SIGNAL. DOUBLE.ILLUMINATION AUDIBLE OCCASIONALLY 0.8 SEC APART. 0329 MED PRF NOW LEFT SIDE, SAME SIGNAL. 0331 SIR NOW SEEMS TO BE 11.3 SEC. SIGNAL IS STRONG. 0333 BELIEVE DOUBLE ILLUM_CAUSED BY TWO RADARS, SAHE LRF S/R'S 10.8 AND 11.3 SECONDS. 0335 SIGNAL WITH 10.8 SEC SIR WEAK. OTHER SIGNAL STRONG. BOTH LEFT SIDE. 0340 SIGNAL WITH 11.3 SEC SIR AUDIBLE ON RIGHT SIDE NOW AS WELL AS LEFT, THOUGH WEAK. SIGNAL STRONG ON LEFT SCDEf SIDE LOBES AUDIBLE. STRONGEST NOW. 0345 BELIEVE 10.8 SEC S/R SIGNAL NOW SECTORING AT 60 SEC WITH 2.4 SEC BETWEEN ILLUMS. STRONGEST NOW 0349 1/2 SIGNAL NO LONGER SECTORING AND BECOMINGWE UQ11.3 SEC -------- H/W RPTNG ------------ 0349 1/2 SIGNAL NO LONGER SECTORING AND BECOMING WEAA. 1111.3 SEC S/R SIGNAL ALSO FADING. 0353 ONE OF THE SIGNALS NOW APPEARS ZERO DEGREES OR 180 DEGREES TO AIRCRAFT HEARD ONLY OCCASIONALLY, UNABLE TO DETERMINE WHICH SS&I-). 038TLWLTOLWIETTTPLP25LQVG YPLTTTTTLTTHPHTLQVWVOQ - - - - - - - - H/W RPTNG ---------- AIRCRAFT HEARD ONLY OCCASIONALLY. UNABLE TO DETERMINE WHICH SIGNAL. 0357 ONE TD THE SIGNALS IS ONE WITH 11.3 SEC SIR AND IS NOW ON RIGHT SIDES WEAK. 0359 ONE ILLUM HEARD OF SIGNAW. BELIEVE SIGNAL SOURCE AT ZERO DEGREES OR 180 DEGREES AGAIN. 0401 BOTH SIGNALS DOWN.- 0404 MED PRF LEXT SIDES. WEAK ESTIMATE SIR AT 11.0 SEC. 0405 MED PRF RIGHT SIDES ANOTHER LEFT SIDES ONLY TWO ILLUMS HEARD OF EACH. 0406 FT SIDE 11.2 SEC S/R. 0407 RIGHT SIDE 11.2 SEC S/R. SIGNALS APPEAR SEPARATELY. NOT SAME SIGNAL BOTH WEAK. (IKC TONE RUNNING-20 DB). 0411 RIGHT SIGNA) $927. LEFT SIGNAL HEARD OCCASIONALLY. /CONT'S/ 5400 5400 09/05302 APR TOR* 09/1220Z Approved For Release 2007/09/13: CIA-RDP78TO5447A000400010003-8