EMC
This function measures electromagnetic interference generated
by various electronic equipment. This function incorporates
the 9 kHz and 120 kHz RBW and QP detector conforming to
the CISPR Pub.16-1 standard. In addition, using the AM/FM
demodulation signal fed from the PHONE jack on the rear
panel, you can identify broadcasting radio waves which act as
external noise. Prior to measurement of noise emission on the
approved site, this function is very useful for preparatory
evaluation and solution.
Various antenna correction factors provided by Advantest are
built-in the R3131A. Simply by selecting the Model name of
the antenna, the level indication of the R3131A is calibrated to
an absolute value, allowing you to read the value directly in
unit of dBµ/m. When you use an antenna from other
manufacturers, you can reflect its antenna correction factor in
the level indication of the R3131A by performing steps
and
below.
Diverse measurement functions
The MEAS key incorporates the XdB Down measurement
function which is useful for noise measurement, AM
modulation measurement, 2-signal 3rd-order distortion
measurement, and filter cut-off frequency measurement. In
noise measurement, bandwidth conversion can easily be made
and the PBW calibration function for improvement of
measurement accuracy is effective. The PBW calibration
function is a new calibration function which performs
correction, in power measurement, based on conversion of the
R3131A resolution bandwidth filter to an ideal filter, thereby
allowing measurement with higher accuracy.
7
R3131A-4E Jan. ´02
Antenna and Level Correction Functions
(EDIT of Corr.table is not performed by the R3131A unit.)
SHIFT
RECALL
SAVE
Save
Save Item
Protect
Delete
1.
Set Antenna Correction to ON and SAVE the file.
2.
OPEN the file from the floppy disk using Excel
on the PC.
3.
Enter the frequency and correction level in
the
〈
ANT CORR
〉
area and then overwrite it
on the floppy disk.
4.
Load the floppy disk in the R3131A and then
RECALL the file. The Correction table is created.
Setup ON/OFF
Trace ON/OFF
Antenna
Correction
ON
/OFF
MAX. 50 Points
1
2
Set Correction to ON. The corrected data is reflected
on the screen data.
SHIFT
1
EMC
Field
Correction
ON
/OFF
PERSONAL SPECTRUM ANALYZER