User`s guide

Agilent E6432A Microwave Synthesizer User’s Guide 1-47

Installation

Test 4. Pulse Modulation Level Accuracy

Description

The E6432A microwave synthesizer and the function generator are

configured for pulse modulation. A spectrum analyzer is used in zero

span to measure the amplitude of the pulse envelope. This measured

value is compared to the CW amplitude with pulse modulation turned

off. Depending on the model of spectrum analyzer used, the Pulse

Repetition Frequency (PRF) may need to be decreased to measure the

pulse.

Required Test Equipment

• 33120A function generator

• 8563E spectrum analyzer

Equipment Setup

NOTE All test equipment requires a 30 minute warm-up period to ensure

warranted performance. The E6432A microwave synthesizer must be

connected to an external 10 MHz reference. Ensure the external

10 MHz reference is selected in the Configuration Dialog Box.

WARNING Voltages greater than or equal to +5.5 V or less than or equal to

–0.5 V will damage the E6432A microwave synthesizer pulse

modulation input. Before connecting the function generator to

the E6432A microwave synthesizer ensure its amplitude does

not exceed the damage levels.

1. Using a BNC cable, connect the 33120A function generator output to

the E6432A microwave synthesizer Pulse input.

2. Use a high frequency 3.5 mm cable to connect the E6432A

microwave synthesizer output to the input of the 8563E spectrum

analyzer.