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Chapter 4
TECHNICAL DESCRIPTION
Introduction
The 3002 VXI Signal Generator is a VXI module which covers a wide range of frequencies from 9 kHz to 2.4 GHz. Output levels from
The simplified block schematic diagram for the instrument is shown in Fig.
Modulation
The carrier frequency can be frequency, phase or amplitude modulated from internal or external sources. The internal source can be the sum of two signals and used in combination with an external source connected to the front panel EXT MOD INPUT connector.
Frequency generation
A voltage controlled oscillator (VCO) covering the frequency range 400 to 533 MHz is phase locked to a 10 MHz temperature controlled crystal oscillator using a
Control
Internal control of the instrument is achieved by a microprocessor which receives data and sends instructions via an internal