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Cellular Guard · Model JCD-200 · Preliminary specification

Cellular Jammer Detector

Selective jammer detection for vehicles, fleets, trackers and security. Designed to detect abnormal in-band RF conditions rather than simply respond to every nearby RF transmitter.

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Cellular Guard JCD-200 cellular jammer detector

Production image will be added when the prototype enclosure is complete.

Design specification

Cellular Guard Model JCD-200

ModelJCD-200
RF coverageUK cellular downlink bands; dedicated filtered channels
DetectionBand-selective RF power / abnormal interference event detection
AlarmPer-band OLED + audible/visual alarm
LoggingRTC timestamped event log
PowerPortable rechargeable
RF modePassive receive-only

Planned production features

  • Band-selective monitoring
  • Per-band RF level measurement
  • Adaptive baseline + configurable threshold
  • Persistence/duty-cycle test
  • Event start, duration, peak and affected band
  • Passive receive-only
Band-selective detection: ordinary broadband RF detectors can alarm on legitimate phones, radios and wireless devices. Cellular Guard restricts detection to the relevant service bands. An alarm indicates an abnormal in-band RF condition; further investigation may be needed to establish the source and intent.