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The other puts out a slower 1 V pulse. The sampling bridge is a feed-through type. | The other puts out a slower 1 V pulse. The sampling bridge is a feed-through type. | ||
For TDR measurements, the signal from one of the internal pulsers is fed through the sampler, and out to | For TDR measurements, the signal from one of the internal pulsers is fed through the sampler, and out to the transmission line being tested. | ||
Returning pulses are detected as they pass back through the sampler, and they are reabsorbed by the 50 Ω impedance of the pulser. | Returning pulses are detected as they pass back through the sampler, and they are reabsorbed by the 50 Ω impedance of the pulser. | ||