JK2830 Series Operation Manual Chapter 3 Introduction to [DISP]
35
correction can refer to “Load correction”.
1)
Move the cursor to the
SHORT
zone, the following soft keys will be displayed:
◼
ON
◼
OFF
◼
SWEEP SHORT
◼
DCR SHORT
2)
Connect the test fixture to the test ports. Short the test fixture by using short
plate.
3)
Press the
SWEEP SHORT
soft key, JK2830 will test the short spurious
impedances (resistance and reactance) of 41 frequencies. Short full
frequency correction takes about 75 seconds and in this process, the
following soft keys will be displayed.
◼
CANCEL
This soft key can be used to cancel the current short correction operation and
reserve the formal open correction data.
4)
Press
ON
to validate the short correction function. JK2830 will make short
correction calculation in latter test. If SPOT FREQ is set as OFF, the short
correction function will calculate the short correction data of the current
frequency. If SPOT FREQ is set as ON and the current frequency is SPOT FREQ,
the short correction data of SPOT FREQ will be used in the calculation of the
short correction.
5)
Press
OFF
to turn off the short correction function. In latter test, no short
correction calculation will be performed.
3.6.3
LOAD
By using transport coefficient between the real test value and the standard
reference value at the preset frequency (
SPOT NO.
), the load correction of
JK2830 can eliminate the test error. It is obvious that open, short, and load
correction can be performed at preset frequencies. The 10 preset frequencies can
be set in the setup zones of
SPOT NO.
. The standard reference values can be set
in the setup zones of
REF A
and
REF B
. The standard test function must be set in
the
Func
zone before setting standard reference value. When the cursor moves
to FREQ, the
MEAS LOAD
soft key will be displayed. Press
MEAS
LOAD
to
perform the load correction test.
Operation steps for setting load correction
According to the following steps, perform open/ short/ load correction test at
preset frequencies.
1)
Move the cursor to
SPOT NO.
, the following soft keys will be displayed:
◼
↑
(++)
This is a coarse adjustment soft key used to increase series number of
frequency.
Содержание JK2830
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