Limit Lines And Limit Masks - Keysight HSA N9342C Demonstration Manual

20 | Keysight | N9342C/N9343C/N9344C HSA Handheld Spectrum Analyzer - Demonstration Guide
Demonstration 10

Limit lines and limit masks

The N934xC HSA offers two different limit lines. Limit lines/limit masks and associ-
ated margins allow you to quickly and easily identify signals that do not meet specified
requirements.
In this demonstration, we will create a limit line and perform a pass/fail test.
Figure 23. Limit lines
Instructions for the source
Connect the source output to the HSA input. Set 2 GHz center frequency,
amplitude -10 dBm, CW signal
Instructions for HSA
Preset, set center frequency and span
Enter into limit menu
Set the upper limit
Activate the limit
Edit the limit mask (Figure 23)
Edit point 0
Edit point 1
Edit point 2
Edit point 3
Edit point 4
Edit point 5
Save the limit line
Set signal level to 0 dBm, CW
Note: Portions of trace which fail the limit are displayed in red
Keystrokes for the source
[Preset], [FREQ], [2], {GHz}, [AMPTD], [-10], {dBm},
[RF On]
Keystrokes for HSA
[Preset], [Freq], [2], {GHz}, [Span], [10], {MHz}
[Shift], [Limit]
{Limit 1}
{Limit (On)}
{Limit Edit}
{Frequency}, [1.995], {GHz}, {Amplitude}, [-50], {dBm}
{Add}, {Frequency}, [1.999], {GHz}
{Add}, {Amplitude}, [-10], {dBm}
{Add}, {Frequency}, [2.001], {GHz}
{Add}, {Amplitude}, [-50], {dBm}
{Add}, {Frequency}, [2.005], {GHz}, {Return}
{More 1 of 2}, {Save Limits}, input file name, [Enter]
[AMPTD], [0], {dBm}