HP 8590 E-Series, Calibration Manual

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44. Residual Responses , HP 8591EM
Conrming Residuals
16. Set the EMC analyzer center frequency to a residual frequency recorded in
T able 2-55 , the press the following keys:
4
PRESET
5
4
AMPLITUDE
5 47 4
dB V
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ATTEN AUTO MAN (MAN) 0 4
dB
5
4
SP AN
5 20 4
kHz
5
4
SGL SWP
5
4
DISPLA Y
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DSP LINE ON OFF (ON) 17 4
dB V
5
17. Press 4 SGL SWP 5 and wait for a new sweep to nish. Look for any residual
responses at or above the display line .
If a residual is suspected, press 4 SGL SWP 5 again. A residual response will
persist on successive sweeps , but a noise peak will not. Note the frequency
and amplitude of any residual responses above the display line and to the
right of the marker in T able 2-56 .
18. Repeat steps 16 through 17 for all residuals recorded in T able 2-55 .
19. Record the highest residual from T able 2-56 as TR Entry 1 in the
performance verication test record. If no residuals are found, then record
\N/A" in the performance verication test record.
T able 2-56.
Conrmed Residual Responses above Display Line
Frequency
(MHz)
Amplitude
(dBV)
2-302 P erformance V erication T ests