160 N9310A User’s Guide
6 Subsystem Command Reference
Example 4 - Generating an continuous RF Sweep
Assume you wish to initiate an RF sweep, with the following
characters:
• RF sweeps from 1 GHz to 2 GHz
• Sweeps across 90 points linearly
• Dwells for 20 ms for each point
• Repeats sweep continuously
• Triggers immediately and continuously over all points
******************************************************
/* Setup N9310A to generate an continuous RF
output. */
int main(void)
{
status = viOpenDefaultRM (&defaultRM);
if (status != VI_SUCCESS) return –1;
status = viOpen (defaultRM,
“USB0::2391::8216::0115000001::0::INSTR”, VI_NULL,
VI_NULL, &INST_N9310A);
if (status != VI_SUCCESS) return –1;
/* Configure an RF sweep. */
status = viWrite (inst_N9310A, “*RST\n”,
StringLength(“*RST\n”), &rcount);
status = viWrite (inst_N9310A, “SWE:RF:STAR 1 GHz\
n”, StringLength(“SWE:RF:STAR 1 GHz\n”), &rcount);
status = viWrite (inst_N9310A, “SWE:RF:STOP 2 GHz\
n”, StringLength(“SWE:RF:STOP 2 GHz\n”), &rcount);
status = viWrite (inst_N9310A, “SWE:STEP:POIN 90\
n”, StringLength(“SWE:STEP:POIN 90\n”), &rcount);
status = viWrite (inst_N9310A, “SWE:STEP:DWEL 20
ms\n”, StringLength(“SWE:STEP:DWEL 20 ms\n”),
&rcount);
/* Enable RF sweep & initiate the RF sweep. */
status = viWrite (inst_N9310A, “RFO:STAT ON\n”,
StringLength(“RFO:STAT ON\n”), &rcount);
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