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PERFORMANCE TESTS
PERFORMANCE TESTS
MODEL
8559A
4
-
12.
TUNING ACCURACY
(Cont'd)
PROCEDURE:
Set spectrum analyzer controls as follows:
FREQUENCYBANDGHz
..................................................
.01-3
TUNING
..............................................................
0.035GHz
FREQ SPAN/DIV
.........................................................
200 kHz
RESOLUTION BW
...................................
OPTIMUM, coupled (pushed in)
INPUTAlTEN
.............................................................
10dB
REFERENCE LEVEL
....................................................
-
10 dBm
REFLEVELFINE
..............................................................
0
Amplitudescale
........................................................
10dB/DIV
SWEEPTIME/DIV
........................................................
AUTO
.....................................................
SWEEPTRIGGER FREERUN
.....................................................................
ALTIF OFF
SIG IDENT
.................................................................
OFF
BLCLIP
....................................................................
OFF
VIDEOFILTER
.............................................................
OFF
Connect CAL OUTPUT signal of spectrum analyzer to INPUT
5W. Adjust TUNING control to position
signal at center graticule line of display. Adjust FREQ CAL potentiometer for a FREQUENCY
GHz
display of 0.035.
Connect comb
generqtor to spectrum analyzer INPUT 5W as shown in Figure
4-4.
Set comb generator controls
as
follows:
COMB GENERATOR
-
MHz
................................................
10 MC
INTERPOLATION AMPLITUDE
-
1 MHz
......................................
OFF
OUTPUT AMPLITUDE
..............................................
Full clockwise
Adjust spectrum analyzer TUNING control to center 10
-
MHz comb tooth. FREQUENCY GHz readout
should indicate:
Min. Actual Max.
Set comb generator COMB FREQUENCY
-
MHz for 100 MHz comb. Set spectrum analyzer FREQ
SPAN/DIV to 1 MHz, and adjust TUNING control to position 1.5
-
GHz comb tooth at center graticule
line of display. FREQUENCY
GHz readout should indicate:
Min. Actual Max.
Connect sweep oscillator to spectrum analyzer INPUT
5W as shown in Figure
4-4.