Agilent Technologies 11970-90031 manual Identify signals in wide frequency spans

Operation

Using the Mixers with the 856X Series Spectrum Analyzers

Identify signals in wide frequency spans

7.SIG ID AT MKR identifies signals in wide frequency spans, using harmonic search. SIG ID AT MKR automatically determines the proper frequency of a signal and displays its value on the spectrum analyzer.

•Activating SIG ID AT MKR on an image of the signal will yield a reading in the active block, as shown in Figure 2-14. The true signal frequency is given with an identifier that the marker resides on an image. If the marker is placed on a true signal, and SIG ID AT MKR is activated, the signal frequency will appear without the IMAGE notation, as shown in Figure 2-15.

8.To activate SIG ID AT MKR:

a. Place a marker on a signal.

b. Press AUX CTRL, EXTERNAL MIXER, SIGNAL IDENT, SIG ID AT MKR.

9.To exit the external mixer mode, press AUX CTRL, then INTERNAL MIXER.

Figure 2-14 SIG ID AT MKR Performed on an Image Signal

Operation

36 Chapter 2