Chapter 2 105
Making Measurements
Example 8: External Millimeter Mixers (Unpreselected)
Identify signals in wide frequency spans
7.
SIG ID AT MKR identifies signals in wide frequency spans, using
harmonic search.
SIG ID AT MKR automaticallydetermines 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 2-50. 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 2-51. 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.
8. To exit the external mixer mode, press
AUX CTRL, then INTERNAL
MIXER.
Figure 2-50
SIG ID AT MKR Performed on an Image Signal
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