Telephone Surveillance
Electronic Bugs | Surveillance Equipment
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Steve Dickson
 

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Surveillance EquipmentSurveillance Equipment - The surveillance equipment page features practical solutions for your home with examples of different surveillance equipment which can be used and access to suppliers.



If you are concerned about telephone surveillance, then this page provides information about transmitters and call loggers with access to articles about other telephone surveillance techniques.


Telephone surveillance
telephone testing equipment



If you are worried about your civil rights and have concerns about covert issues of national security, then please go to:

ECHELON - America's Secret Global Surveillance Network fly.hiwaay.net

Telephone Audio DTMF Decoder and Display with Serial Port Output

Telephone / CB / VHF Transceiver Scrambler


Transmitters - telephone surveillance

Attach a transmitter anywhere along a phone line (a simple job that takes just 5 minutes). You then tune an FM radio into the signal and you will hear exactly what both parties are saying. They usually start transmitting only when the phone is used. If you have a radio/cassette you can even record the conversation for future playback (a Telephone Recording Interface may also be used for this purpose). They use a 2-transistor circuit with an RF transistor in the output stage to give a clear, stable signal. They draw their power from the phone line so are completely maintenance free once installed.

They transmit to 300 metres plus in the open (further if receiver is near phone line)
Are suitable for use on any phone system worldwide
Require no aerial wire - uses phone line as antenna
Telephone surveillance data can be received on a standard FM radio (Order Code 4051)
User adjustable transmitting frequency (just requires a small screwdriver)
Frequency Range: 88-108MHz approx.
Supply: draws it's low power requirements from phone line so no batteries needed
Board Dimensions: standard 20x45x8mm

Telephone call logger - telephone surveillance

This device records the start and stop time of ALL outgoing calls along with the number dialled (plus any other digits pressed during the call). It operates "stand alone" - no need for any connection to a PC. telephone surveillance. Data is stored in non-volatile EEprom memory so there is no loss of data during power failures. The kit is normally supplied with 16K of memory but is usually expandable in 16K blocks up to 64K total. The logger "auto detects" the amount of available memory - just plug it in and go.




Telephone RecordersTelephone Recorders - This page reviews some mobile and home telephone recorders used to record telephone conversations with access to other sources of information about other types of telephone recorders.

Eavesdropping DetectionEavesdropping Detection - The eavesdropping detection page reviews radio frequency detectors, audio amplifiers and thermo imaging devices with access to other sources of eavesdropping detection equipment and services.


The most relevant links we could find, placed here free

Quasar electronics - Telephone Taps and Phone Bugs. www.quasarelectronics.com

Are you being bugged ? - an article about this issue with terms of definitions and useful background information about telephone surveillance. www.pimall.com

Site structure created by Neil Villette Site written by Steve Dickson