TDR Distance & Electrical Length
Convert reflection time to one-way distance, guided wavelength and electrical phase.
Live results
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Formula and worked example
Method. One-way distance = velocity × round-trip time / 2. Guided wavelength = velocity / frequency. Electrical length = 360° × physical length / wavelength.
Assumptions. Use the propagation velocity of the measured path and subtract probe or launch delay from the timing reference where applicable.
Example. At velocity factor 0.5, a 2 ns reflection corresponds to about 149.90 mm one way.