Chapter 3: Testing Performance

To test trigger sensitivity

To test trigger sensitivity

This test checks channel and external triggers for sensitivity at rated bandwidth.

Specification

Internal: dc to 500 MHz: 0.5 div

100 MHz to 500 MHz: 1.0 div

500 MHz to 1 GHz: 1.5 div

Auxiliary: dc to 500 MHz: 300 mVpp

Equipment Required

Equipment

Critical Specifications

Recommended Model/Part

Signal Generator

100 and 500 MHz, 1.0 GHz, 30-80 mVrms output

Agilent 8664A

Power Splitter

outputs differ by <0.15 dB

Agilent 11667A

Termination

BNC feedthrough, 50

Agilent 10100C

Cable

Type N (m) 24 inch

Agilent 11500B

Cable

50 BNC 36 inch

Agilent 10503A

Adapter

Type N (f) to BNC (m)

Agilent 1250-0077

Adapter

Type N (m) to BNC (m)

Agilent 1250-0082

Adapter

Type N (m) to BNC (f)

Agilent 1250-0780

Adapter

BNC tee (m)(f)(f)

Agilent 1250-0781

Internal Trigger Test

Perform this test on all vertical channels.

1Press Default Setup.

2Select Acquisition from the Setup menu.

3Select Equivalent time sampling mode. Enable Averaging and set the number of points to 4. Click Close.

See figure 3-16.

Figure 3-16

Acquisition Setup for Trigger Sensitivity Test

4Set horizontal time/div to 5 ns/div.

3–23

Page 60
Image 60
Agilent Technologies 45A, 46A manual To test trigger sensitivity, Set horizontal time/div to 5 ns/div, Internal Trigger Test