Specifications

Appendix A 553

Manual Changes

A. Manual Changes

Required Equipment

1. The Agilent E4991A RF Impedance/Material Analyzer and the accessories required to measure a

DUT

2. GPIB system controller

3. Peripheral equipment depending on the user’s purpose

4. GPIB cable (10833A/B/C/D) to connect the computer to the E4991A and peripheral equipment

When using an external computer as the system controller, it is

necessary to set the E4991A in addressable-only mode and set the

GPIB address as required. This setting is made by the following

front panel operation.

a. Set the E4991A in addressable-only mode.

System - GPIB Setup... - Control Mode [Addressable Only]

b. Set the GPIB address of the E4991A.

System - GPIB Setup... - E4991A Address: (drop-down box)

c. Turn the E4991A’s main power off and then back on again.

To use an external computer as the system controller, a Personal

Computer (IBM compatible) or work station with a GPIB

interface is required. Also, software such as Agilent VEE,

Microsoft Visual Basic, or HTBasic is required to control the

E4991A through GPIB.