Effects of Accessories
Accessories in a configuration may affect the results of a device measurement. You can choose between these analyzer features that reduce ore remove the effects of accessories.
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De-embedding a 2-port device (separate topic)
Other topics about Optimizing Measurements
Power Slope to Compensate for Cable Loss
If you have a long cable or other accessory in a measurement configuration where a power loss occurs over frequency, apply the power slope function. This function increases the analyzer source power by a rate that you define (dB/GHz).
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In the Channel menu, click Power.
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If the slope function is not already switched on, click the Slope check box.
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In the dB/GHz box, enter the rate that you want the source power to increase over the frequency sweep. Click OK.
Gating to Selectively Remove Responses
Gating is a feature in the time domain (option 010) that allows the analyzer to mathematically remove responses. You can set the gate for either a reflection or transmission response, but you will see different results.
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Gating a reflection response isolates a desired response (such as a filter's return loss), from unwanted responses (such as adapter reflections or connector mismatches).
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Gating a transmission response isolates a specific path in a multipath device that has long electrical lengths.
See Time Domain Gating for more information.