Sweep Points Vs. Sweep Time - HP E1340A User Manual

Sweep Points Vs.
Sweep Time
HP IBASIC (SWP_PVST)
Chapter 4
To demonstrate the relationship between the number of points (frequencies)
in a frequency sweep and the time of the sweep, the following program uses
100 frequency points to continuously sweep from 5 kHz to 15 kHz in 0.5
seconds. (See " Program Comments" to determine the sweep time.)
Using the flowchart as a guide, the steps of this program are:
1. Select the Frequency Sweep Mode -
[SOURce:]FREQuency:MODE SWEep
2. Set the Start Frequency -
[SOURce:]FREQuency:STARt <
3. Set the Stop Frequency -
[SOURce:]FREQuency:STOP <
4. Set the Number of Points (frequencies) in the Frequency Sweep -
[SOURce:]SWEep:POINts <
5. Set the Sweep Repetition Time -
[SOURce:]SWEep:TIME <
6. Set the Output Function -
[SOURce:]FUNCtion[:SHAPe] <
7. Set the Signal Amplitude -
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude] <
8. Place the AFG in the Wait-for-arm State -
INITiate[:IMMediate]
1 !RE-SAVE"SWP_PVST"
2 !This program sweeps a sine wave from 5 kHz to 15 kHz
3 !in 0.5 seconds to demonstrate how to set the sweep time.
4 !
10 !Assign I/O path between IBASIC and the E1340A.
20 ASSIGN @Afg TO 80910
30 COM @Afg
40 !
50 !Set up error checking
60 ON INTR 8 CALL Errmsg
70 ENABLE INTR 8;2
80 OUTPUT @Afg;"*CLS"
90 OUTPUT @Afg;"*SRE 32"
100 OUTPUT @Afg;"*ESE 60"
110 !
120 !Call the subprogram which resets the AFG.
130 CALL Rst
Continued on next page
HP E1340A Sweeping and Frequency-Shift Keying
start_freq >
stop_freq
>
number
>
number
>
shape >
amplitude >
90