HP 8340B Manual page 248

5-8.
YO LOOP ADJUSTMENTS
(Cont'd)
04V
MINIMUM
z
160 MHz
210 MHz
Figure 5-20. Typical Swept Frequency
Response
at A48TP1
12.
Set the Spectrum Analyzer as follows:
a.
Press [INSTR PRESET]
b.
Set CENTER FREQ to 30 MHz
c.
Set FREQUENCY SPAN
to
60 MHz
d.
Press
Marker [PEAK SERACH] then [SIGNAL
TRACK].
e.
Set REF LEVEL
to
+10
dBm.
13. On the
Sweep Generator press
[CW]
then adjust the rotary knob to set
a
frequency that will
produce a center frequency readout
on the
Spectrum Analyzer
of 25.0 MHz. (See
Figure 5-21.)
Turn off
[SIGNAL TRACK]
on Spectrum Analyzer.
14.
On the OUT, adjust
A48R1
(IF GAIN) for
a
25
MHz
signal displayed on the Spectrum
Analyzer of
approximately
0
dBm.
15.
Set the Spectrum Analyzer as follows:
a.
Press [INSTR PRESET]
b.
Set CENTER FREQUENCY to 50 MHz
c.
Set FREQUENCY SPAN to 100
MHz
d.
Set REFERENCE LEVEL to +10
dBm
e.
Select
5
dB/DIV
f.
Select MAX
HOLD
on Trace
A
Adjustments
HP 8340B/41B