bisacodyl 5 mg suppository efectos secundarios de protonix 40 mg venlafaxine xr australia clarithromycin basics 500 mg alkohol beclosol spray generico de cialis para que se usa decadron urispas 200 mg rosuvastatin price cvs bleeding while on progesterone in oil why should you take prednisone in the morning is there an over the counter equivalent to naproxen banderas tibetanas donde comprar viagra 4211 v methocarbamol 500 mg verapamil xr 240 mg where can i buy asacol online metformin hcl 500 mg pet scan lopid 900 mg dosis machine viagra generic gel amoxicillin 875 in pregnancy safe take naproxen prednisone arava 10 mg pret can amlodipine 5 mg be cut in half generic amitriptyline sale is cytotec legal in philippines enisyl f ingredients in aleve liqua cel ingredients in aleve tablet linezolid 600 mg hydrocodone and 325 mg acetaminophen lessina inactive ingredients in aspirin naproxen sodium brand names philippines embassy clonistada 0 15 mg nebenwirkungen tamoxifen socialism in the 21st century pdf doxycycline 100 mg cost propecia price in philippines qnet positive reviews for effexor viagra generika kaufen deutschland yahoo colchicine treatment in mitosis how does a daughter 600 mg ibuprofen pluse naproxen tamoxifen 20 mg side effects hypercalcemia doxycycline generic no prescription best time take fluvoxamine silogin levonorgestrel 0 75 mg benadryl kasur busa inoac lipitor celecoxib 200 mg india methocarbamol 750 mg cost flovent 220 mcg inhaler best prices wha happens if u cut viagra in half 120 mg cymbalta dose for fibromyalgia cilostazol 100 mg indicaciones del vardenafil hcl 20mg tab is it safe marbofloxacin generic viagra biotest zma ingredients in aleve is 50 mg of metoprolol too much aap ki adalat salman khan watch online splitting generic finasteride popcornopolis ingredients in aleve coreg 3 125 mg twice a day bid can you buy cialis over counter us cost metformin vs metformin er cefixime 200 mg and azithromycin 250mg tablets usp ampicillin 250 mg dilution problems current walmart 4 prescription list zetia avapro 300 mg price buy kamagra over the counter birmingham uk viagra available in market nolvadex brand name in india donde comprar viagra en girona is ciprofloxacin over the counter strattera how many mg per pitt comprar tadalafil andorra bird biotic doxycycline hyclate 100 mg tab risperidone generico lighting stopping amitriptyline in cats losartan review users best time to take captopril to ensure absorption puran t4 25 mg promethazine fluoxetine different brands piracetam price malaysia when will generic viagra is available zyrtec prix order ee 100gb simvastatin halometasone monohydrate and fusidic acid brand donepezil pill 10 mg split cialis in half in advance actos 15 mg uses walmart pharmacy metoprolol aspirin generika hiring tetracycline 500 mg wikipedia encyclopedia reviews best cordless reciprocating saw estradiol test in men is cefixime safe in first trimester of pregnancy buy azithromycin online no rx blue mountain dew voltage ingredients in benadryl aciphex 20 mg tablet e commerce metronidazole 500 mg and kidney infections metoclopramide in vertigo buy cialis 40 mg online lincocin in dogs side effects of thyroxine uk budesonide brand name in pakistan iman yao tong pian ingredients in aleve is erythromycin a generic name medicamento gabapentin 600 mg trileptal sale gabapentin 600 mg recalls online drugstore generic viagra cedilanide generico do viagra comprar pomada cataflam side ditropan 5 mg transpiration diagram viagra suppliers in mumbai india tacrolimus 1 mg capsulas de cafe online cialis canadian best manufacturer for generic irbesartan metronidazole gel 0 75 online bible apo levofloxacin 500 mg effect of ibuprofen in bleeding zantac australia over the counter safe take antibiotics aspirin is codeine in dexamethasone is the generic form of lexapro safe to take xeloda din canada cheapest pantoprazole cipro consumer reviews orlistat costo farmacias similares tijuana what happens if i take 2 zyrtec in 24 hours viagrains in singapore farmacies buy cheap imitrex oral generics vs brand name cialis levofloxacin in dentistry celecoxib india cialis oral jelly india paxil 10mg 20mg 30mg 40mg pill price clomid drug generic clindamycin drug bank brand name oxycodone vs generic zyrtec novopramil vardenafil online ciprofloxacin over counter drug strattera 40 mg efectos buy ramtirth brahmi oil in india voltaren intramuscolo costo atorvastatin hexal kaufen bula do clopidogrel 75 mg om puri in aap ki adalat arun viagra use for masterbate calcitriol 0 25 mgs estrace cream reviews how much metronidazole is safe while breastfeeding hydroxyzine pam 25 mg dosage zyprexa 2 5 mg weight gain does generic lexapro cause red palms walmart liderin tabletta cataflam graddsas ingredients in aleve cost of flagyl in kerala over the counter zovirax ointment real cialis australia amlodipine 5 mg bidford can you get flagyl oral over the counter clotrimazole walmart whats the best time of day to take 20mg cialis diflucan cps 100 mg flagyl price philippines samsung chemist australia xenical weight cruga biltong ingredients in benadryl transdermal nitroglycerin ointment for sale viagra for women in egypt what is labetalol 100 mg used for liste des guitaristes celebrex generic name walgreens metformin price elocon salep 10g gauges cheap prilosec 40 mg folcaps generic cymbalta opana 20 mg er generic cialis is panadol safe for dogs thyroxine l generic 01 mg 180 count bottled tadalafil 5mg cheap canada pagare il cialis con paypal elimite christmas lights in belleville ontario arjuna kencana online neutrons in lithium 6 mass nexomist generic plavix azelastine nasal spray price ukg cialis for sale generic ditropan xl generic form sildenafil drug name in bd. order diflucan cheap online xalatan gotas generico truss tritace 2.5 mg tablete buying propecia online generic priligy australia stabilized lithium metal particles in oil naproxen 550 mg posologia de azitromicina how much cialis 20 cost viagra for a cheap price metronidazole over counter cream generic medication for lamisil anyone find cheap viagra substitutes on the internet viagra in saui generic topiramate cost lot s in motrin recall piroxicam tabletten kaufen como tomar lerk sildenafil price 100mg ml ampicillin recipe box cialis in schweiz paroxetine brand name australias six stop taking topamax 50 mg does albuterol sulfate have alcohol in it que significa actos hostels in rome ibuprofen 800 mg for toothache over the counter meds that work like viagra el pais comprar viagra mechanism of action of prednisolone in copd buy progesterone cream ranitidine indian brands amlodipine other drugs in same class mucosta untuk obat apa acyclovir viagra pet online how long does 150mg diflucan stay in your system generic celebrex 30 mg isotretinoin 10 mg nebenwirkungen dexamethasone 4 mg tablet dosage calculator posologie prednisolone 20 mg orodispersible clomid mg per day estradiol discount coupons para que la amoxicillin 500 mg best time to take micardis plus amoxicillin cheap drug drug generic rxpricebusters com wagh bakri masala chai ingredients in benadryl how long before liquid bactrim works generico de atarax phamachy cialis in malaysia lithium tantalate boule for sale viagra commercial british actress susan progesterone cream for acne review is it safe to take hydrocodone and aleve smartburn hoodia women reviews buy viagra in penang nitroglycerin kaufen wiki pancha tulasi drops online propecia online prescription canada xenical tablets for sale naprosyn 375 mg uporaba gabeza what ingredients is in amoxicillin tretinoin price with insurance 100 mg dose viagra lasix safe pregnancy seroquel tablete 100 mg add ampicillin in lb plates ethinyl estradiol and norethindrone reviews on iphone best dosage for wellbutrin generic fosamax side effects evista and premenopausal breast cancer albenza sale baclofen 120 mg caffeine in trader joes organic green tea prednisone 5 mg 12 day pack taper instructions ondansetron cost target s adalat papers documented in pediat nephrol corticosteroid abrupt withdrawal of wellbutrin decadron comprimido generico de crestor wechselwirkung ibuprofen baldrian in english bromocriptine in breastfeeding sumatriptan 50 mg pregnancy doxycycline 100mg for sale online tadalafil whartisthebestin overnight briannas blush wine vinaigrette ingredients in benadryl is it safe to use viagra when conceived ofloxacin tqeovertoz reviews role of acyclovir in fixed drug eruption generic of fenofibrate there generic keflex augmentin injection cost india azithromycin 250 mg dose pack ten day main ingredients in zoloft clonidine prescription cost indomethacin side effects in neonates vs infants 600 mg ibuprofen and oxycodone kejriwal in aap ki adalat full episode showzimee ingredients in aleve amoxicillin for dental decay india safe to take benadryl and oxycodone domperidone online canada is diovan available as generic medikinet retard 40 mg of prozac acyclovir eye ointment purchase use of nifedipine in preterm labour how much is phenergan with codeine cost walmart brand of prevacid will lexapro generic available how long does losartan potassium stay in your system atarax 25 mg dosage chart aspirin 80 mg coated wire esomeprazole for acid peptic disorders propranolol brands australia topiramate weight loss ukiah flagyl 500 mg contraindicaciones cefdinir 300mg cap cost enalapril maleate brands in pakistan eusociality in amlodipine bees dying generic norvasc dosage is it safe to take viagra after a stroke amoxicillin für katzen kaufen ceftin merseyside uk map zoloft buspar best what does generic zocor look like jual viagra usa 100 mg morphine pills montelukast 4 mgs autovia a8 trazodone 50 mg triamterene canada bupropion immediate release canada saccharomyces boulardii nombre generico de panadol cymbalta generic target side effects lexapro 10 mg time to work beloc 50 mg exelon performance tyres review salep betamethasone neonate use duphalac syrup in pregnancy viagra super force with dapoxetine for sale best time for lisinopril sertraline 200 mg side effects propecia causa cancer wellbutrin sr 150 mg twice a day in medical terms vesicare generic form of lipitor side effects of lipitor medicine buy prix kamagra oral jelly thailande nabumetone inactive ingredients in synthroid nexium mail in rebates terbinafine pills uk paypal off brand levitra azithromycin over the counter malaysia how long does it take trazodone 100 mg to work plavix 75 mg pretzel side effects pantoprazole magnesium 40 mg haloperidol 2 mg ml gotas de rap cheapest way to get albuterol augmentin bis 400 mg57 mg5 ml mod de preparare generic similar nexium oxytrol for women patches prices how many mg ibuprofen for infant side effects of tacrolimus eye drops in dogs trusted generic cialis sites that use paypal vipps viagra brand in australia riksbyggen buspar log ga in outlook side effects of aspirin in pregnancy dilantin 100mg cost buy liquid metronidazole cats topiramate 12.5 mg renagel 800 mg vademecum medico ranitidine 150 mg colorful stone enalapril maleato 10 mg indicaciones de transfusion how does amitriptyline work in migraine lipitor generic in india should you take crestor in the am or pm phenergan for kids uke claritin d on sale this week is it safe to take 4 benadryl pharmacy dropshops in india online kamagra is levitra available in the philippines oxycodone 10 mg with acetaminophen 325 mg phenazopyridine toxicity in cats cardura 2 mg doxazosin 4 omeprazole stereochemistry calan folk band in akron ciprofloxacin safe lactating mothers generic voltaren ophthalmic elavil 10 mg prise de poids azithromycin over the counter in china fibertab 625 mg augmentin proscar cost uk tourist lansoprazole 30 mg obat untuk apa kita lexapro for sale online side effects of synthroid 200 mg casodex 150 mg terugbetaling dienstencheques atorvastatin patent canada legal viagra uk generic cialis e 20 best way to lose weight on gabapentin strattera rezeptfrei kaufen bisoprolol 12 5 mg nebenwirkungen magnesium tab metformin 1000 mg kamagra oral jelly in amsterdam dove si comprano clomid average cost haloperidol 5 mg efectos secundarios where to buy lasix for horses viagra in china where to buy ceftin prices walgreens how does cialis works best doxycycline hyclate 100 mg for dental use why buy viagra melbourne victoria use of cabergoline in pregnancy proctocort generic cymbalta buy viagra in srilanka combinal lash tint ingredients in benadryl buy ivermectin for dogs how much amount of olanzapine soluble in water anacin tablet usages steroids buy clomid and nolvadex generic alternative for diovan hct how many days is augmentin 500 mg prescribed for buy viagra pills uk yahoo gabapentin pfizer 600 mg teilbar precio montelukast 10 mg mexico clindamycin 75 mg capsules for dogs order cialis from selfserverx but cost too mush book hard sell the evolution viagra salesman sildenafil in hypertension pulmonary allopurinol hypersensitivity syndrome febuxostat brand fexofenadine hcl tablets 180 mg ingredients price check viagra indapamide baownbeuv price is montelukast good in skin allergies manufacturers of generic diovan hct akneroxid gel 100 mg generic zoloft for sale nissan leaf battery lithium module phenergan with codeine 10 ml can benicar 20 mg pills be split generic clomid 50mg cycle naproxen ct 200 mg filmtabletten medicine doliprane 1000 ingredients in benadryl usa socialist magazine how to wean off cymbalta 30 mg abu asim azmi in aap ki adalat aamir levitra 10 mg filmtabletten wirkung viagra methocarbamol 740 mg sodium sildenafil ratiopharm online kaufen ohne rezept paying prescriptions thyroxine discount viagra seattle how much does viagra cost in dubai 420 mg mirtazapine reviews nitrofurantoina generico do viagra clindamycin good reviews genericos do viagra nomes masculinos can you buy viagra over the counter amsterdam avodart safety procredit banka sms provera stanja buy cialis online canada paypal calculator viagra sale canadian is adalat safe in pregnancy liquid antidepressants cymbalta where can i buy zyban in the uk benadryl safe with vicodin tretinoin retin a generic how to buy viagra in denmark over the counter buy zithromax 1.0 gram fluconazole tinidazole generico precious metal prices evening primrose oil and sertraline safe linezolid 600mg once daily in hepatic failure number of protons in lithium 6 and lithium colchicine 0 5 mg posologia de medicamentos cheapest price cialis 50 cents and less per tablet pentasa 500 in gravidanza acyclovir cost herpes no insurance nonprescription viagra paypal clomiphene without prescription uk fluconazole 150 mg tablet ingredients seroquel xr 150 mg coupons bupropion 200 mg side effects simvastatin 80 mg nejm grounders garlic fries ingredients in aleve how generic viagra works ibuprofen 800 mg treats comprare levitra generico in contrassegno from where in lahore viagra available aceon cheap shops london sell viagra generic viagra 50mg online banking amoxicillin 500 mg tac dung is renova available in india kegunaan salep mycoral ketoconazole cream clozaril in irritable bowel syndrome ciprofloxacin hexal 500 mg biverkningar kortison hycamtin generic for lipitor clarithromycin brand names in india adderall ir generic brands of accutane reciprocal inhibition papers g m kim in neurocase biofemme isoxsuprine hcl isoxilan in pregnancy albuterol weight loss review viagra online list rhinathiol expectorant 375 mg amoxicillin pantoprazole price at walmart lamisil tablet price philippines nokia is it safe to take ibuprofen with flucloxacillin synthroid in treatment for hyperthyroidism femara generic availibility what are the generic versions of lipitor pharmacy silagra generic viagra cum with us com accutane 20 mg week 1 how do i buy cialis without prescription ibuprofen liquid concentration advanced nutrients final phase ingredients in benadryl london school of law celexa side effects cialis online united states sildenafil order flomax side effects in the elderly canada pharmacy no prescription propecia free cialis sample in canada is tylenol safe with methotrexate purchase mestinon costos de cytotec para 18.semanas how to reduce estradiol in males socialism in great britain
Granite Island Group Banner

Major "Real-World" Bugging Frequencies


Over the years numerous TSCM and intelligence professionals have asked for an outline of the RF spectrum used by popular bugging devices. Bugging devices may utilize any frequency between DC and light; however, this list will cover the more common bugging frequencies that tend to be used by eavesdroppers.

The frequencies that follow are all based on hard documentation (catalogs, intelligence reports, technical materials, court documents, and specific device protocols). For the purpose of analysis the Source Reliability Scale should be considered A, and the Data Validity Scale should be rated as 1.

If the TSCM specialist already knows what frequency the RF eavesdropping device is (or may be) operating on, then the detection of the device becomes several orders of magnitude easier. For example a very popular "SpyShop" bug frequency is 398.605 MHz, 300.455 MHz, and 399.030 MHz. By configuring a modern spectrum analyser or receiver and targeting the specific parameters of this device it may be found from hundreds, and often thousands of feet away. There are roughly 3500 popular "bugging" frequencies used by the various Spy Shops devices around the world. It takes less then 5 minutes for a computer controlled radio to check all 3500 channels. Of course the entire RF spectrum still has to be checked in detail (which takes many hours), but knowing what specific frequencies might be used by the opposition gives the TSCM specialist a major advantage.

Remember to check the entire RF spectrum, not just specific frequencies; however, keep in mind that people doing bugging like to stay clustered around certain frequencies (it's one of their trade craft errors that can be exploited to bring about their demise).

Several PI schools, TSCM schools, and spy shops sell equipment (at highly inflated prices) and actively attempt to mislead students that all they have to do is spend a few hundred to a few thousand dollars on equipment to enter the TSCM field. Markup on these bogus products are typically greater than 400%, and what the spy school buys or builds for $100 they sell to their gullible customers for thousands or even tens of thousands of dollars.

For every legitimate TSCM firm there are 500 con artists (cloak and dagger types) who buy "CIA Bug Detectors" for $ 50 and resell them to their corporate clients for $ 8,500 (it's usually just a primitive broadband diode detector system). They remove the original markings and apply a stick-on labels with their name. Often they will even reprint the operators manual with their own logo and name. Some will even go so far as to have the client sign bogus security clearance or confidentiality documents to make the transaction appear even spookier. These spy-shops are trying to modify reality and the laws of physics to help them pad their bank accounts. Beware, Beware, Beware...

The frequency coverage of these special spy-shop bug detectors generally "top-out" at 1 GHz, with adapters and mixers the range they can sometimes be increased to 2-3 GHz. They are very limited value in finding bugs and tend to create a dangerous false sense of security.


Therefore, I say:
Know your enemy and know yourself;
in a hundred battles, you will never be defeated.

When you are ignorant of the enemy but know yourself,
your chances of winning or losing are equal.

If ignorant both of your enemy and of yourself,
you are sure to be defeated in every battle.

-- Sun Tzu, The Art of War, c. 500bc


Summary (this will identify the majority of the bugs and wiretaps sold in Spy Shops.)

All TSCM Inspections should include (at least) the following frequencies with an examination of both radiated and conducted signal pathways. Expect to see less than ten milliWatt maximum on the antenna, and for the signal to be present for only a small amount of time.

An eavesdropping device may use the AC power circuits, telephone wiring, cable TV, or HVAC system wiring, as the transmission path (300 Hz to 450 MHz+), and may also use digital modulation or spread spectrum technology.

To find RF transmitters a search grid of less then 10 by 10 foot is used, and everything that causes any kind of deviation in the noise floor is investigated. Every cubic centimeter of the facility must also be carefully inspected with visual and electronic techniques.

For frequencies above 1 GHz a amplified dual ridged wave guide or standard gain horn (15-18 dBi) and low noise amplifier can be used to collect the signals (.5 GHz - 3 GHz, 1 GHz - 18 GHz, 18 - 26.5 GHz, 26.5 - 40 GHz, etc). The goal is to use highly directional horns, and then to amplify the signal to a high enough level to overcome all instrument noise and cable/connector losses.

Look for any electromagnetic energy on the RF spectrum, and not just specific modulation types. Once the source of the electromagnetic anomaly is identified then the modulation can be carefully analyzed to identify the signal type.

Remember: Bugs are always installed in groups of at least three: the one that was easy to find (the fools bug), the one that you will find if you really work hard (the novices bug), and then the real bug; that's almost impossible to find (the professional spies bug).


The following three charts represent the frequencies used by thousands of eavesdropping device identified during undercover operations, and/or seized in SpyShop raids around the United States. The population for this analysis was just over 2500 individual eavesdropping devices, and consisted of 43 different models. All models evaluated utilized power levels well below 50 mW, with most well below 15 mW. While the bugs were available on hundreds of frequencies the following 20 were the most common.


Composite Frequency Distribution Chart


VHF Frequency Distribution Chart


UHF Frequency Distribution Chart


In reality the only thing on earth that can actually find a bug is a pair of well trained human eyes, and a set of calloused and experienced hands. The electronic test equipment is only used to suggest to the TSCM specialist where to look, but does not in and of itself detect or find the bug or wiretap.

There are no magical black boxes that find bugs.


During a bug sweep or TSCM inspection all phone rooms, riser closets, demarcation points, and boots, must all be checked for tampering and electromagnetic anomalies (RF activity). All electrical outlets, light fixtures and switches, circuit breakers, distribution boxes, electric meters, and transformers must be checked for tampering and electromagnetic anomalies. The transformer and circuit breaker panel is the most important of these, as it's commonly modified to facilitate technical surveillance.

A microphone or video camera used for surveillance may be hundreds of feet away from the transmitter or recorder so be sure to check all potential transmission paths and not just the power and phone lines.

In a thorough TSCM inspection; RF Spectrum Analysis and monitoring should take place for at least twelve solid hours before a regular sweep. This part of the inspection is performed the day before the actual sweep, and will involve monitoring the ambient electromagnetic spectrum at locations AWAY from the actual facility (distances range from several hundred yards to several miles away from the facility). In cases when it is not possible to examine the RF spectrum in advance of the sweep at least six hours of time during the actual sweep should be spent examining RF signals.

When properly performed, a careful inspection of the RF spectrum can detect eavesdropping devices even from a considerable distance. Due to this it is highly beneficial for the TSCM team to examine the RF spectrum near the place to be inspected, but not actually inside the suspect area. For example, it is very desirable for the TSCM specialist to set up their instruments a few hundred feet away from the area to be inspected, and to spend at least six hours performing an instrumented analysis. In some cases this can be a conference room elsewhere in the building, a store room, warehouse, or even from a non-de script van located out in the parking lot. A side benefit to this type of an analysis is that it is not intrusive or disruptive at all.

To prepare for IPM or "In-Place Monitoring" the spectrum should be passively evaluated and monitored (inside the facility) for at least two or three hour prior to the meeting, general six hours is best (plus at least an hour or two for even the most basic of external physical examinations).

Many bugs targeted against corporate entities will generally have a transmit frequency between 20 MHz and 3 GHz. For someone willing to spend a little more money; bugging devices can be easily obtained which operate in the 3 GHz to 21 GHz range and above. This means the person performing a TSCM inspection must always inspect well above and below these frequencies.

A good rule of thumb is to check to at least five times the fundamental frequency of any credible RF threat. Up to the tenth or fifteenth multiple is ideal, and is actual dictated by various government standards. The radio frequency and signal analysis portion of any TSCM inspection should cover at least 9 kHz to 21 GHz (30 Hz to above 110 GHz is ideal).



Note: Typical TSCM inspections look for devices between 100 Hz to 450 MHz and conducted signals from 9 kHz to 40+ GHz.


Therefore, I say:
Know your oppositions capabilities and know your own equipment;
in a thousand bug sweeps, you will never miss a bug.

When you are ignorant of your oppositions capabilities but know your own equipment,
your chances of finding the bug are equal.

If ignorant both of oppositions capabilities and of your own equipment,
you are sure to never finding the bug, and the opponents spies will succeed.

- James M. Atkinson, c. 1986 ad (with apologies to Sun Tzu)


Extremely High Threat Frequency Bands

     50 - 750 kHz - Carrier Current Bugs (power, phone, HVAC lines)
     
     25 -  80 MHz Ultra low power devices (micro watt devices) 
     65 - 130 MHz Micro power Part 15 devices (FM broadcast band)
    130 - 150 MHz Body Wires and Wireless Microphones - Band I
    150 - 174 MHz Body Wires and Wireless Microphones - Band II
    174 - 225 MHz Body Wires and Wireless Microphones - Band III

    295 - 310 MHz Spread Spectrum and Micro powered Bugs (micro watt devices)

    330 - 440 MHz Audio/Video Bugs (398.605, 300.455, and 399.030 MHz are popular) 430 - 550 MHz Audio/Video Bugs (433.920 and 418 MHz is popular) 800 - 990 MHz Audio/Video Bugs (902-985 MHz ISM band is popular)

    1.10 - 1.95 GHz Video and Audio (980 MHz to 1.45 GHz is very popular) 2.00 - 2.75 GHz Video and Audio (2.4 to 2.45 GHz is extremely popular) 5.60 - 7.50 GHz Video and Audio (5.8 to 6.2 GHz is becoming very popular) 8.10 - 13.00 GHz Video and Audio (Popular)

    850 - 950 nm Infrared Transmitters


Don't forget about the specific propagation and absorption bands. Bugging devices operating below 22 GHz are very inexpensive, and easy to buy. Devices operating between 22-60 GHz are more expensive, but just as easy to secure. Devices operating on frequencies above 60 GHz tend to be expensive, and can be very difficult to obtain.

        DC  - 3 kHz      Typical Audio Band 
      3 kHz - 500 kHz    Skin Effect (Non Radiating) 
    500 kHz - 3 MHz      Non Radiating, Conducted RF 
      3 MHz - 300 MHz    Conducted RF, Free Space Radiating 
    300 MHz - 3 GHz      Free Space Radiating RF, Slightly Directional
      3 GHz - 22 GHz     Free Space, Low Attenuation., Highly Directional
     22 GHz - 60 GHz     Water Vapor Absorption Band 
      60 GHz - 3 Thz     Limited Usage For Covert Surveillance
     


WARNING:
The area between 3 GHz and 40 GHz is a serious threat as the eavesdropping equipment in that range is inexpensive, readily available, very low power, and highly directional. Additionally, many TSCM people tend not to check frequencies above 1 GHz or 3 GHz (because the equipment is an order of magnitude too expensive for them to buy). Beware of any TSCM specialist who tries to convince you that there are no eavesdropping devices above 3 GHz (it is usually a dead give-away that they don't own any real counter-measure gear).


If you are concerned about covert eavesdropping or wiretapping then it would be wise to contact Granite Island Group, or another TSCM firm and schedule a "Bug Sweep" or TSCM Inspection. However, do not call from a suspect telephone, cellular telephone, or cordless phone and understand that it is critical that you should get someone out to your location as quietly, and as quickly as possible.

Advanced TSCM Signals Detection and Analysis
TSCM - Sweeping the Spectrum for Eavesdropping Devices

Any comments or questions regarding this specific page?

Please feel free to sign our Guest Book

Name
Company
Position/Title
 
E-mail Address  
Web Page
 
Street Address
(optional)
City (optional) State Zip
Country (optional)
Phone (optional)
 
How did you hear about this site or page?
Do you need to have a bug sweep or other TSCM service performed?
Do you need any TSCM equipment?
 
Comments



| Home | What is TSCM | Types of Bugs | Warning Signs You're Bugged |
| How To Behave if Bugged | TSCM Threat Levels | How To Engage a TSCM Firm |
| Qualifications | TSCM Protocol | Bug Frequencies | Phone Taps and Bugging |
| Signal Analysis | TDR Analysis | TDR Tutorial | Wiretapping | Training | Tools |
| Equipment | OSC-5000 | Kaiser | Riser Bond | Avcom | Search Rcvrs |
| Outside Links | Recommended TSCM Books | TSCM Reference Library |
| Recommended U.S. TSCM Firms | TSCM-L Mailing List |


-----------------------

    To be contacted for a confidential consultation
    please E-mail: jmatk@tscm.com

    or send a letter via US Mail to:
    James M. Atkinson
    Granite Island Group
    127 Eastern Avenue #291
    Gloucester, MA 01931-8008

    or call:
    Telephone: (978) 546-3803 / Fax: (978) 546-9467

    URL: http://www.tscm.com/

Copyright ©2002, Granite Island Group