Specifications
PERFORMANCE TESTS
o m Low Frequency Test
28.
Initialize the HP 4285A
by
performing a SYSTEM RESET
as
described
on
page 1-
4.
29. Move the cursor
to
the INTEG field, and press the 'LONG' softkey
to
set the
integration time to long.
30. Move the cursor
to
the LEVEL field,
and
set the test signal
level
to
0.5
V.
31.
Press
the MEAS SETUP MENU
key
and
the 'CORRECTION' softkey
to
display the
CORRECTION page.
32.
Set the CORRECTION page
as
shown
in
Figure 1-12.
I
<CORRECTION>
I I
SYS
MENU
OREN
:1
ON
CABLE
:1
0 m I
SHORT:~O~N'----I
MODE
:1
..
SI!'I.GL.E
J
LOAD
:1
OFF
I
CH
No. :
FI..NC
:rl
·:":"·'V·Xx';';·Xv-X'-'-·
.-'-;
...
FREOl :
'-1
=OF=F-----,I
REF
A:
I
------
I
B:I
------
I
MEA
A::··
:.:.:.:..:.:
....
B:·
------
:
FRE02 : I
OFF
i·
.......... .
REF
A:
I ------ I B
:1.
..
-.. -
..
-.-
... I
F:~3A
~
i·
o;;~~~~·
..
; B::
...
-.-.-.-:-::
..
:
REF
A:
I
------
I B:I -
---
I
MEA
A::
>.:.~:~~::::
B:::
: :-:-:-:-:-:-:: ::
FREQ 1
to
7:
OFF
MEAS
SETUP
CORREC
nON
LIMIT
TABLE
LIST
SETUP
Figure 1-12. Correction Page Setup
Field
Moni
tor
XXXX: Any Setting
33. Connect the OPEN Termination to the HP 4285A's UNKNOWN terminals.
34. Move the cursor
to
the OPEN field.
35.
Press
the 'MEAS OPEN' softkey
to
store the open correction data.
NOTE
It
takes approximately 40 s each
to
store the OPEN CORRECTION
data
and
the SHORT CORRECTION data.
36.
Connect the SHORT Termination
to
the HP 4285A's UNKNOWN terminals.
37. Move the cursor
to
the SHORT field.
38.
Press
the 'MEAS SHORT' softkey
to
store the short correction data.
39.
Press
the 'MEAS SETUP MENU' key
to
display the MEAS SETUP page.
40. Move the cursor
to
TRIG field, and press the 'MAN' softkey
to
set the trigger
mode
to
MANUAL.
1-17