Product specifications

The N934xC HSA offers two different limit lines. Limit

lines/limit masks and associated margins allow you to

quickly and easily identify signals that do not meet speci-

fied requirements.

In this demonstration, we will create a limit line and

perform a pass/fail test.

Demonstration 10

Limit lines and limit masks

Instructions for the

source

Keystrokes for the

source

Connect the source output

to the HSA input. Set 2 GHz

center frequency, amplitude

-10 dBm, CW signal

[Preset], [FREQ], [2], {GHz},

[AMPTD], [-10], {dBm},

[RF On]

Instructions for HSA Keystrokes for HSA

Preset, set center frequency

and span

[Preset], [Freq], [2], {GHz},

[Span], [10], {MHz}

Enter into limit menu [Shift], [Limit]

Set the upper limit {Limit 1}

Activate the limit {Limit (On)}

Edit the limit mask (Figure 23) {Limit Edit}

Edit point 0 {Frequency}, [1.995], {GHz},

{Amplitude}, [-50], {dBm}

Edit point 1 {Add}, {Frequency}, [1.999],

{GHz}

Edit point 2 {Add}, {Amplitude}, [-10],

{dBm}

Edit point 3 {Add}, {Frequency}, [2.001],

{GHz}

Edit point 4 {Add}, {Amplitude}, [-50],

{dBm}

Edit point 5 {Add}, {Frequency}, [2.005],

{GHz}, {Return}

Save the limit line {More 1 of 2}, {Save Limits},

input file name, [Enter]

Set signal level to 0 dBm, CW [AMPTD], [0], {dBm}

Note: Portions of trace which fail the limit are displayed in red

Figure 23. Limit lines