13. Figure 9-17 illustrates normal operation. Severe failures (slope error greater than 30
percent) and subtle 3 kHz resolution bandwidth errors (less than 30 percent) indicate a
problem with A4U802, A4U803, A4U804, or A4U106.
14. Severe failure of the bandwidth accompanied by subtle errors in the output signal indicate
an A5 failure.
15. Set the HP
8566A/B
controls as follows:
16.
17.
18.
19.
20.
Center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.710 MHz
Resolution bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 kHz
Videobandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1kHz
Sweep time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200ms
On the HP 85623 spectrum analyzer, press FULL
IF
AI)3
. When the message
IF ADJUST STATUS: 1
kHz
RBW
appears, press
(j-j
on the HP
8566A/B.
Figure 9-18 illustrates normal operation. Severe failures (slope error greater than 30
percent) and subtle 3 kHz resolution bandwidth errors (less than 30 percent) indicate a
problem with A4U802, U803, U804, or U106.
On the HP 85623 spectrum analyzer, press FULL IF RDJ . When the message IF ADJUST
STATUS: 300 Hz RBW
appears, press
(s)
on the HP
8566A/B.
Figure 9-19 illustrates normal operation. Severe failures (slope error
>30
percent) and 3
kHz resolution bandwidth errors (less than 30 percent) indicate a problem with A4U802,
U803, U804, or
U106.
Reconnect W52 (white) to
A4J8.
Output
Wavrform.
LB
kHZ
ReaOlutiOn
Bandwidth
rp
REF -40.0
clBm
ATTEN
i0
08
i
de/
I
I I
I
I
1,
I I I
I
I
CENTER i0.800 000
Ml-It
SPAN 0
HZ
RES
BW
i00
kl-lz
VBW
10
kHz
SWP
50.0
mast
Figure 9-16. Output Waveform, 10 kHz Resolution Bandwidth
IF Section 9-35
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