TM 11-66254051-12
1-9. LIST OF ABBREVIATIONS.
This list identifies abbreviations and descriptions that are used in this manual.
Synchronous or Synchronized
SYNC
Clockwise
CW
Counterclockwise
CCW
Amplitude Modulation
AM
Frequency Modulation
FM
Phase Modulation
PM
Transistor transistor logic. Voltage range of 0 to
TTL
+ 0.4 volts (logic low) and 2.4 to 5.0 volts (logic
high).
Coaxial
COAX
Light Emitting Diode
LED
Trichlorotrifluoroethane
TRICHLOR
Modulation or Modulator
MOD
Generator
GEN
SECTION II EQUIPMENT DESCRIPTION
1-10.
INSTRUMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES.
a.
Characteristics. Signal Generator SG-1171/U is a precision source of:
Triangle Waves
Square Waves
Sine Waves
Modulated Signals
DC Offset Voltage
Ramp Signals
Capabilities and Features. Signal Generator SG-1171/U capabilities and features are as follows:
b.
Waveform symmetry continuously variable and controlled at front panel.
Output signal amplitude and frequency controlled at front panel.
Contains internal modulation generator that provides three modulation modes. These modes are
q
frequency, amplitude, and phase.
Able to operate in five operational modes. These modes are continuous, internal triggered, external trig-
gered, internal gated, and external gated.
Triggered and gated waveform start/stop point selectable from 90 to +90 degrees.
Main waveform output may be attenuated and offset. A TTL level sync pulse output runs at main generator
frequencies.
Modulation generator waveform output may be attenuated.
q
Main generator and modulation generator frequencies manually con rolled at front panel or by external
voltages.
External sync input from rear panel BNC connector.
1-3
