HP 8559A Operation And Service Manual page 64

PERFORMANCE TESTS
4-18. RESIDUAL RESPONSES
SPECIFICATION:
at input. They are less than
DESCRIPTION:
Signals present on the display without an input signal applied to the spectrum analyzer are residual responses.
The .Ol - 3 GHz frequency band is checked for residual responses greater than
EQUIPMENT:
Variable Persistence/Storage Display
Termination, Type N (m)
The HP 853A Spectrum Analyzer Display may be substituted for the HP
This test can be performed with no input termination if INPUT ATTEN is set
to 20 dB. Note that the input attenuation must then be taken into consider-
ation in establishing the equivalent REFERENCE LEVEL control setting for
the measurement. A REFERENCE LEVEL setting of - 40 dBm with 20 dB
INPUT ATTEN is equivalent to a REFERENCE LEVEL setting of - 60 dBm
with 0 dB INPUT ATTEN.
PROCEDURE:
Set spectrum analyzer controls as follows:
1.
TUNING
RESOLUTION BW
INPUTATTEN
REFERENCELEVEL
REFLEVELFINE
Amplitude Scale
SWEEPTRIGGER
ALTIF
SIGIDENT
BLCLIP
VIDEOFILTER
PERFORMANCE TESTS
3.06 GHz) with 0 dB input attenuation and no signal present
-
90 dBm (0.025
- -
NOTE
NOTE
MODEL 8559A
-
90 dBm.
HP 18 1T/TR
HP 909A, Opt. 012
1 MHz, uncoupled
10 dB/DIV
AUTO
OFF
OFF
OFF