user manual

HP 8517B S-Parameter Test Set Manual 3-9
Measuring High-Power Devices with Option 004
The HP 8517B, Option 004 test set enables devices with output power up to
30 dBm (1 watt) to be measured at Port 2, without adding external
attenuators. Reverse dynamic range (S
12
) degrades by approximately 3 dB.
When measuring devices having greater than +17 dBm output power, you
must use the Port 2 step attenuator to decrease the power to
≤+17 dBm.
The step attenuator has to be set during calibration for the value needed
during device measurements. However, this setting may cause inadequate
power level during calibration. Refer to “Changing Signal Path States After
System Calibration” on page 3-10 for additional information.