Anritsu Series MS278XB User Manual

Page 156

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Parameter Entry and Measurement Setup Dialog Archive

Front Panel Menus

4-58

MS278XB OM

Advanced Tab

Send To MATLAB:
IQ Data:
Toggles the IQ Data (vectors) on or off and enables
the transfer configurations below. The IQ vectors from
Signature give you the most freedom to make complex
measurements, such as FFTs or demodulation, and allow larger
data sets. When IQ Data is selected, Signature does not
display trace data and the MATLAB Setup dialog must be left
open.

Sample Rate (S/s)/BandWidth (Hz): Selects the following
Sample Rate and Bandwidth, (S/s)/(Hz):

With Option 22:
50M/25M, 50M/20M, 25M/10M, 12.5M/5M,
6.25M/2M, 3.125M/1M, 2M/800K, 1M/400K,
500K/200K, 400K/150K, 200K/80K, 100K/40K

Without Option 22:
21.4M/10M, 21.4M/5M, 12.8M/3M, 8.56M/2M,
4.28M/1M, 2.14M/500K, 1.284M/300K,
856K/200K, 428K/100K

Capture Time: Sets the capture time. Ranges from 2 µs to
1.28 s, depending on the sample rate/bandwidth selection.

Sweep Mode: Toggles between continuous or single sweep
modes and starts a single sweep. Sweep mode is disabled
when handshaking is enabled.

Input: Toggles between Wideband RF Input, Narrowband
RF Input, Wideband Single I/Q or Wideband Diff I/Q.

Impedance: Toggles between 50

Ω or 1MΩ.

MATLAB Handshake: Toggles the MATLAB handshaking on
or off. Handshaking allows you to know when Signature is
finished making a measurement and can be useful for such
things as storing or averaging multiple traces, where you need
to know when the trace data is new. When handshaking is
selected, sweep mode is disabled.

In the MATLAB application, the following script:

Signature_Control(‘StartSweep’)

is used to initiate a sweep when handshaking is toggled On.

Note: The connection to MATLAB can only be made when Option 40 is installed. Option 40 comes with a trial

version of MATLAB, from The MathWorks, that may need to be activated. The full MATLAB software is not
supplied with Signature and must be purchased separately.
Install MATLAB with any of its configurations and licensing option onto the “C:” drive in Signature. It is best
to install
MATLAB into the default directory.

Figure 4-26. MATLAB Setup Dialog

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