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RIGOL

Programming Guide for DM3058

7-6

Example 3: dBm Measurement

Purpose: Use commands to perform dBm measurement.

dBm measurement is frequently used in signal measurement and analysis.

The programming steps——RIGOL Commands:

0 *RST /*Reset the instrument for preparing measurement*/

1 cmdset□rigol /*Select RIGOL commands*/

2 *IDN? /*Query equipment ID to confirm if the instrument

works normally*/

3 /*Return: RIGOL Technoligies, DM3058, DM3A020080808, 99.00.00.00.00.00*/

4 :function:resistance /*Enable resistance measuring function*/

5 :measure□AUTO /*Set the measuring range to ―AUTO‖*/

6 :measure:resistance? /*Query the measured resistance*/

7 /*The return value is used as the reference resistance for dBm measurement*/

8 :function:voltage:AC /*Enable AC voltage measuring function*/

9 :measure□AUTO /*Set the measuring range to ―AUTO‖*/

10 :calculate:function□DBM /*Enable dBm measuring function*/

11 :calculate:DBM:reference□<value> /*Set the reference voltage*/

12 :calculate:DBM? /*Query the measured result*/

13 /*Return value*/

Remarks:

1. Before sending line 6 command , the instrument should be connected under

resistance measure mode.

2. Parameter in command line 11 is the returned value in line 7.

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Rigol DM3058 Especificações Página 244