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Handheld radio frequency analyser with antenna on the table of an empty meeting roomAI-generated

Service

Technical surveillance counter-measures (TSCM)

A TSCM examination checks rooms, cabling, power supply and the radio environment for devices used to capture conversations. It is measurement work: only what can be measured, seen or traced is reported.

What is examined

  • Radio environment across the relevant frequency ranges
  • Cabling, telephone lines, network lines and power supply
  • Furniture, fittings, ceilings, cavities and technical equipment
  • Conference technology, network devices and unattended equipment

How the examination is carried out

  1. 1.Discreet arrival and examination outside normal working hours where required
  2. 2.Spectrum measurement, non-linear junction detection and thermal inspection
  3. 3.Systematic physical inspection of the room, section by section
  4. 4.Written findings including measurement conditions, coverage and limits

Technical limits

These limits are stated before the instruction, not afterwards.

  • Devices that are switched off or transmit only occasionally may not be active during the examination.
  • Recorders without radio transmission are found only by physical inspection.
  • Structural conditions can limit measurement coverage; this is documented.
  • A result without findings is a snapshot, not a guarantee for the future.

FREQUENTLY ASKED QUESTIONS

Technical surveillance counter-measures (TSCM): frequently asked questions

Equipment used

Systems used in this examination

Next step

Discuss your case

Describe the situation briefly. We will say what can realistically be established, and what cannot.

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Further specialised services

AQON INTELLIGENCE covers technical and digital forensics. Adjacent requirements are handled by other providers: