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Model8565A
Performance Tests
PERFORMANCE TESTS
4-14.
RESIDUAl RESPONSES TEST (Cont'd)
PROCEDURE:
a.
Connect 50-ohm termination to INPUT
son
port and set spectrum analyzer controls as follows:
Set all Normal Settings (controls marked with green)
FREQUENCY BAND GHz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .01 - 1.8
INPUT A TTEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 dB
REF LEVEL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -60 dBm
REF LEVEL FINE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
RESOLUTION BW ............................... 10kHz, Uncoupled
FREQUENCY SPAN/DIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 MHz
VIDEO FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .l
SWEEP TRIGGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SINGLE
TUNING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.060 GHz
PERSIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fully Clockwise
INTENSITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
O'clock
b.
Press START/RESET pushbutton and turn BASELINE CLIPPER control clockwise until just the
peaks of the noise are displayed. ERASE CRT and press START/RESET again. Any residual responses
that appear must be less than -90 dBm (below the -30 graticule line).
c.
Adjust TUNING control for an indication of 0.150 GHz on FREQUENCY readout. Press
START/RESET pushbutton and observe display.
d.
Continue tuning spectrum analyzer in 100 MHz increments (0.250 GHz, 0.350 GHz, and so on) up to
1.750 GHz. Check for residual responses in each position of the TUNING control by pressing
START/RESET pushbutton and observing CRT display. ERASE CRT occasionally to prevent
blooming.
e.
Set RESOLUTION BW to 3 kHz. Leave FREQUENCY SPAN/DIY set to 10 MHz. Set SWEEP
TIME/DIY to 5 SEC and press 1. 7 -
4.1 FREQUENCY BAND GHz pushbutton. Adjust
TUNING control for an indication of 1.750 GHz on FREQUENCY readout and set BASELINE
CLIPPER control fully clockwise.
f.
Repeat step b.
g.
Tune spectrum analyzer in 100 MHz increments (1.850 GHz, 1.950 GHz, and so on) up to 4.050 GHz.
Check for residual responses in each position of the TUNING control by pressing START /RESET
pushbutton and observing CRT display. ERASE CRT occasionally to prevent blooming.
4·15.
AVERAGE NOISE lEVEl TEST
SPECIFICATION:
Maximum average noise level (internal mixer) with 1 kHz IF bandwidth, 0 dB attenuation, and .003 (3 Hz)
video filter is given in Table 4-4.
4-25
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