HP 8340B Manual page 261

5-10.
YO DELAY COMPENSATION, A54 (Cont'd)
6.
Set the Spectrum Analyzer as follows:
a.
Press
[INSTR PRESET]
b.
Press
[CENTER FREQUENCY]
then enter 7.2 GHz
c.
Press [FREQUENCY SPAN]
then
enter
0
Hz
d.
Press
[SINGLE] Sweep
7.
Set the Oscilloscope as
follows:
a.
Select
A
vs.
B
Mode
b.
Set Channel A
Volts/Division to 0.5
V/DIV
c.
Set Channel
B
Volts/Division
to
0.1
V/DIV
8. Press
[RF]
on the
DUT
to turn
RF power
off.
9.
On the oscilloscope, position the marker
to
center screen with horizontal position control. Press
oscilloscope
MAG X
10.
Reposition the beginning of the marker
at center line of
screen
with the
horizontal
position control.
(See Figure 5-31.)
10.
Press
[RF]
on the
DUT
to turn
RF power
on.
11.
Press the Spectrum Analyzer
CENTER FREQUENCY
key then use the rotary
knob to set Center
Frequency so the peak of the
signal
is at the center line of the oscilloscope screen. (See
Figure
5-32.)
12.
On the DUT, press
[RECALL]
then
enter [2]. Press [RF] to
turn
RF power
off.
13.
Adjust the oscilloscope horizontal position to
place
the beginning of the marker at the center
line
of the screen.
14.
On the DUT, press
[RF] key
to turn
RF power on. Adjust A54R32 (COFF)
to
set the peak of the
signal at the center of the oscilloscope screen.
15.
On the DUT, press [RECALL] then enter [3].
16.
On
the Spectrum Analyzer, press
CENTER FREQUENCY
then enter 13.2 GHz.
17.
Set the oscilloscope Channel
B
Volts/Division switch to
2
V/DIV.
18.
On the DUT, press
[RF]
to
turn
RF power
off.
19. Adjust
the
oscilloscope horizontal position control so the beginning of the marker
is at the
center
line of the screen.
20. On the
DUT,
press
[RF] to
turn RF power on.
21. Press
the Spectrum Analyzer CENTER FREQUENCY
and adjust
frequency
using
rotary knob
so
the peak of the signal is at the center line of the oscilloscope screen.
22. On the
DUT, press
[RECALL], then
enter [4]. Press [RF] to turn RF power
off.
23.
Adjust the oscilloscope horizontal position to place beginning of the
marker
at the center
line
of
the screen.
5-60
Adjustments
HP 8340B/41B