Introduction - Wavetek FG3B Operator's Manual

Section 1 Introduction
The Mode! FG3B Sweep/Function Generator is a stable, low distortion instrument, capable of
generating signais in the 0.2Hz to 2.0MHz frequency range. It is sui table for vibration testing, servo
system evaluation, general-purpose audio response testing, ultrasound applications and much more.
Features that make this instrument unique include linear or logarithmic sweep capabilities and a
built-in frequency counter. The sweep capability simplifies the often tedious task of finding resonant
points in speakers, filters, and structures. Y ou may connect an oscilloscope to the equipment and observe
a display of responses automatically. The counter makes it easy to set the frequency control knob to the
precise value desired. In addition, the counter may be switched to measure and display ex tema! signais
up to lOOMHz.
Other features include:
1. Law-distortion sine wave, triangle wave, square wave and ramp signais.
2. Signal outputs in seven decade increments from 0.2Hz to 2.0MHz.
3. Adjustable sweep time, sweep width, and linear/log sweep mode controls.
4. AM or FM capability with internai or external modulation control.
5. Duty cycle control with inversion feature.
6. External VCF (Voltage Controlled Frequency).
7. Main signal 50 ohm output with DC offset adjustrnent and 20dB attenuation capability.
8. Second output for TIL or adjustable CMOS pulses.
9. Self-extinguishing plastic case, two BNC test cables, and AC power cord.