Read a waterfall
Identify carrier, SSB, CW and digital-looking signals without relying on a label.
No licence requiredSDR Spectrum Detective
Use live SDR receivers to identify signals by bandwidth, timing, frequency and modulation clues.
Audiencenewcomer
Estimated time90 min
Steps3
Path
Estimate bandwidth
Estimate occupied bandwidth and compare it with likely modes.
No licence requiredExplain the evidence
Write down what evidence supports your identification and what could falsify it.
No licence required