Setting Up A Typical
In swept operation, the swept CW generator is programmed for the
Sweep, Example
proper sweep frequency range, sweep time, power level, and marker
Program 3
frequencies for a test measurement. This program sets up the swept
CW generator for a general purpose situation. The instrument is the
same as in program 1. Clear and reset the controller and type in the
following program:
10
Source=719
20
ABORT 7
30
LOCAL 7
40
CLEAR Source
50
REMOTE Source
60
OUTPUT
Source;"*RST"
70
OUTPUT Source;
"FREquency:MODE
SWEep"
80
OUTPUT Source; "FREQuency:STARt
4
GHZ"
90
OUTPUT Source;
"FREQuency:STOP
7
GHz"
100
OUTPUT
Source;"POWer:LEVel
-5
DBM"
110
OUTPUT Source;
"SWEep:TIME
500MS"
120
OUTPUT Source;"
:MARKerl:STATe
0N;FREquency
4.5GHZ"
130
OUTPUT
Source;"MARKer2:STATe
0N;FREQuency
611lE6"
140
OUTPUT
Source;"*OPC?"
150
ENTER Source;X
160
OUTPUT
Source;"POWer:STATe
ON"
170
OUTPUT Source;"INITIate:CONTinuous ON"
180
CLS
190
PRINT "Source setup complete."
200
PRINT "Verify that the source is sweeping from"
210
PRINT
"4
GHz
to 7
GHz
at a power of -5
dBm,"
220
PRINT "with a sweeptime of 0.5 seconds."
230
END
Run the program.
Program Comments
10: Assign the source’s HP-IB address to a variable.
20 to 50: Abort any HP-IB activity and initialize the HP-IB
interface.
60:
Set the
source to its initial state for programming.
The
“RST
state is not the same as the PRESET state. For complete details
of the instrument state at
“RST,
see “SCPI Command Summary,”
in Chapter 2.
70: Select the frequency mode to be SWEEP instead of the default
sweep mode of “CW” that was selected with
*RST.
80: Set the source start frequency to 4 GHz.
90: Set the source stop frequency to 7 GHz. Note the optional
usage of the short-form mnemonic, “FREQ”.
100: Set the source’s power level to -5
dBm.
Getting Started Programming 1-93
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