Table of Contents
Advertisement
4
Making Measurements
Resolving Small Signals
Hidden by Large Signals
This example uses narrow resolution bandwidths to
resolve two input signals with a frequency
separation of 50 kHz and an amplitude difference
of 60 dB.
1 Connect two sources to the analyzer input
connector as shown in
2 Set one source to 300 MHz at –10 dBm. Set the
other source to 300.05 MHz at –70 dBm.
3 Set the analyzer as follows:
•
•
•
•
If the signal peak is not present on the display,
span out to 20 MHz, set the first marker frequency
to center frequency, span back to 2 MHz.
•
•
•
•
4 Set the 300 MHz signal to the reference level:
•
•
5 Reduce the resolution bandwidth filter to view
the smaller hidden signal. Place a delta marker
on the smaller signal:
•
•
•
•
48
Press [PRESET]
Press [FREQ] > {Center Freq} > 300 > {MHz}
Press [BW/SWP] > {RBW} > 30 > {kHz}
Press [SPAN] > [500] > kHz.
Press [SPAN] > 20 > {MHz}
Press [MARKER] > {Peak Search}
Press [MARKER] > {Marker To} > {To Center}
Press [SPAN] > 2 > {MHz}
Press [MARKER] > {Peak Search}
Press [MARKER] > {Peak Search} > {To Ref}
Press [BW/SWP] > {RBW} > 1 > {kHz}
Press [MARKER] > {Peak Search}
Press [MARKER] > {Delta}
Press [BW/SWP] > {RBW} > 50 > {kHz}
Figure 3
on page 46.
N9340A User's Guide
Advertisement
Table of Contents
