Agilent Technologies 8590 Series Service Manual page 89

Figure 2-23 LPF Characterization
22.Press INSTRUMENT PRESET on the synthesized sweeper. Set the
controls as follows:
23.Allow the power sensors to settle, then on the measuring receiver,
press RATIO mode. Power indication should be 0 dB.
24.On the power meter, press the dB REF mode key. Power indication
should be 0 dB.
25.Connect the LPF, Attenuator and adapters as shown in
26.Record the measuring receiver reading in dB. This is the relative
error due to mismatch.
27.Record the power meter reading in dB. This is the relative
uncorrected insertion loss of the LPF, attenuator, and adapters.
Chapter 2
CW ................................................................ 300 MHz
POWER LEVEL ........................................... −15 dBm
Mismatch Error____________________dB
Uncorrected Insertion Loss____________________dB
Making Adjustments
13. Third Converter and Second IF Bandpass
Figure 2-23.
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