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Posted on 01/15/2003 7:14:10 AM PST by honway
271454Z AUG 97SUBJ: RUSSIAN AVIACONVERSIA PORTABLE GPS AND GLONASS JAMMER SYSTEM (U)
SUMMARY:
(U) CONFEX - THE RUSSIAN FIRM AVIACONVERSIA MARKETED AND DISPLAYED ITS PORTABLE GPS AND GLONASS JAMMER AT THE MOSCOW AIR SHOW '97, 19-24 AUG 97, IN MOSCOW, RUSSIA. THE 4-WATT JAMMER JAMS CIVILIAN AND MILITARY FREQUENCIES OF GPS AND GLONASS UP TO A RANGE OF 200 KM. PROTOTYPE AT THE SHOW - LOOKING FOR BUYERS.
TEXT:
1. (U) THE REPORTING OFFICER (RO) SPOKE WITH DR. OLEG ((ANTONOV)), DIRECTOR OF AVIACONVERSIA (ADDRESS - 103009 MOSCOW, TVERSCAYA, D.27-2, OFFICE-88, TELEPHONE/FAX +095 2995454) ABOUT THE GPS/GLONASS JAMMER AT THE MOSCOW AIR SHOW '97, IN MOSCOW, RUSSIA.
THE JAMMER SHOWN IN ENCL 1 AND 2 IS FULLY FUNCTIONAL - THIS IS NOT A CONCEPT. DR. ANTONOV SAID THAT HIS COMPANY WAS WITHIN A WEEK OF FINALIZING THE NEXT GENERATION GPS/GLONASS JAMMER THAT REDUCES THE SIZE AND MASS OF THE JAMMER BY SLIGHTLY OVER 50 PERCENT.
DR. ANTONOV SAID THAT HE HAS ALREADY RECENTLY MARKETED THE JAMMER IN THE MIDDLE EAST AND SAID HE HAS SEVERAL POTENTIAL CUSTOMERS THERE. HE DECLINED TO ELABORATE FURTHER AS TO WHO MAY HAVE ALREADY CONTRACTED FOR HIS JAMMER. DR. ANTONOV SAID THE SOPHISTICATION OF THE SIGNAL JAMMERS WAS BEYOND THE TECHNICAL ABILITY OF HIS MIDDLE EASTERN CUSTOMERS. HE SAID THAT BESIDES RUSSIA, ONLY FRANCE, THE UNITED STATES, GERMANY, ITALY, SWEDEN/NORWAY, AND POSSIBLY ISRAEL ARE ABLE TO BUILD THESE SOPHISTICATED SIGNAL GENERATORS.
TO INSURE THE BOX WAS ACTUALLY FUNCTIONAL, THE RO ASKED FOR DR. ANTONOV TO DEMONSTRATE THE SYSTEM. DR. ANTONOV AGREED TO AND BEGAN TO CONNECT THE POWER SUPPLY. WHEN TH RO ASKED IF HIS JAMMING MAY INTERFERE WITH AIRCRAFT IN THE VICINITY, DR. ANTONOV SAID THAT WHILE SOME PILOTS USE GPS AS PART OF THEIR NAVIGATION PACKAGE, GPS IS NOT LISTED INTERNATIONALLY ANYWHERE AS AN AIRCRAFT COMPONENT AND INDICATED ITS NAVIGATION USE CONSEQUENTLY DID NOT NEED TO BE RESPECTED. AT THIS POINT, THE RO DID NOT WANT TO BECOME POTENTIALLY PARTIALLY RESPONSIBLE FOR ANY AVIATION MISHAP THAT MIGHT RESULT.
INSTEAD OF TURNING ON THE JAMMER, THE RO ASKED DR. ANTONOV TO UNSCREW THE BACK ASSEMBLY AND HEAT SINK SO THAT THE RO COULD INSPECT THE COMPONENTS. DR. ANTONOV TOLD THE RO THAT THE JAMMER HAD TWO MODULES. THE FIRST MODULE CONTAINED FOUR SIGNAL GENERATORS THAT INDIVIDUALLY JAMMED THE FREQUENCIES OF CIVILIAN GPS, MILITARY GPS, CIVILIAN GLONASS, AND MILITARY GLONASS. AS DR. ANTONOV WAS STARTING TO UNSCREW THE PLATES, THE RO KNEW THAT HE WAS LOOKING AT A FUNCTIONAL DEVICE.
2. (U) THE GPS/GLONASS JAMMER HAS AN OUTPUT POWER OF 4 WATTS AND CAN EFFECTIVELY DENY USE OF GPS IN AN AREA RANGING AS FAR AS 150-200 KM. DR. ANTONOV SAID THAT HE HAS ALREADY WORKED IN CONJUNCTION WITH THE RUSSIAN MILITARY WITH DIRECTIONAL ANTENNAS FOR HIS JAMMER SO THAT IT CAN BE USED TO DIRECTIONALLY JAM WHILE MAINTAINING SAFE AREAS FOR FRIENDLY FORCES TO ACCESS GPS OR GLONASS. THE COEFFICIENT OF ANTENNA AMPLIFICATION RANGES FROM 2-5, DEPENDING ON THE TYPE OF ANTENNA USED. THE ELECTRICAL INPUT SUPPLY IS EITHER BATTERY OR DC LINE VOLTAGE. DR. ANTONOV PRODUCED BOTH 15 V AND 6 V SUPPLIES THAT RAN OFF OF 230 VOLTS LINE INPUT.
THE JAMMER DISSIPATES 25 WATTS WHEN IN USE AND WEIGHS BETWEEN 8-12 KG WITHOUT BATTERIES, DEPENDING ON THE CONFIGURATION. IN THE FRONTAL VIEW OF THE JAMMER SHOWN IN BOTH ENCL 1 AND 2, TWO KNOBS CAN BE SEEN AT THE BASE. THE LEFT KNOB IS FOR FREQUENCY MODULATION, AND RANGES FROM 0-6 MHZ. THE RIGHT KNOB IS FOR "VELOCITY CHANGE OF MODULATION" AND RANGES FROM 44-270 HZ. A PORTION OF THE ABOVE DATA IS CONTAINED IN ENCL 3, WHICH IS IN RUSSIAN. THE RO HAD ENCL 3 LOOSELY TRANSLATED, VERBALLY.
3. (U) DR. ANTONOV SAID HIS NEXT TESTING WOULD BE ON AN AIRBORNE PLATFORM, WITH THE ASSISTANCE OF THE RUSSIAN MILITARY. HE SAID THAT, IN A PREVIOUS TEST, FOUR TYPES OF GPS AND GLONASS DEVICES, TO INCLUDE ONE PRODUCED BY MAGELLAN, WERE SUBJECTED TO JAMMING AT REMOTE DISTANCES AND ALL THE NAVIGATION DEVICES FAILED IN THE FACE OF THE JAMMING. HE SAID THAT HE HAD STRONG INDICATIONS THAT HIS TEAM, WORKING WITH THE RUSSIAN MILITARY, SUCCESSFULLY JAMMED A DEVICE WITH P-CODE CAPABILITY. WHEN THE RO ASKED FOR MORE DETAIL ON THIS, DR. ANTONOV WOULD NOT ELABORATE.
Great. When was it the FAA was going to approve GPS IFR approaches?
Shades of Die Hard II (or was it III?)!
I'll never look at my moving-map GPS the same... *sigh*
Yep, sounds like whoever bought these were tricked into thinking it would help them avoid missle attacks. Unfortunately this was probably a secret plan to get these kooks to advertise their location ( target).
True. IF someone's thought of designing a HARM for those frequencies. Somehow, I doubt it.
And therein lies the bravo sierra. He's proven he can jam the commercial devices, but the spread spectrum military signal embedded, well he did it, but he can't tell you about it or he'd have to kill ya!! HA!
I see several other problems...(1) JDAM's, for example, will switch over to a less accurate inertial guidance system if they are jammed, and though not as accurate, at worst they will make a big boom nearby. (2) a jammer on the ground has to overpower the signal from space. directional GPS antennas on ordnance are usually kept by the control fins/system ON TOP of the bomb missile, naturally pointed away from the ground interference, (3) to overpower the staellites, you've got to have enough power that, like RoughDoberman said, sticks out like a sore thumb. Every other day almost we see what happens in the no-fly zone when a doomed Iraqi tech turns on a radar transmitter. 'E goes BOOM!
gotta be a mis-type. only 4 WATTS
Someone explain how you can get 200KM range with 4 watts and 5-watt amatuer radios, and 800MHZ radios get only like 4 miles?
No need to worry.
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