FIIG A322

GENERAL INFORMATION

INDEX OF APPROVED ITEM NAMES COVERED BY THIS FIIG

Approved Item Name INC App
Key


Amplifier
1. A device which by means of electron tube(s), transistor(s), or similar items in conjunction with associated circuits, controls a local source of power. Its output characteristics are uniformly related to the input signal, but of a greater amplitude with respect to current and/or voltage.

AMPLIFIER-COUPLER, RADIO FREQUENCY

45059

A
An item having the dual function of an amplifier and a coupler to provide automatic tuning to a variety of antennas by matching impedance levels.

AMPLIFIER-MONITOR

60059

B
An item having the dual function of an amplifier and of presenting operational information. The amplifier and monitor are each used with associated components and may be used with each other.

AMPLIFIER-PHOTOELECTRIC CELL

60060

C
A duel functioning device consisting of an amplifier (1) and an item which directly transforms light energy into corresponding values of electrical energy.

AMPLIFIER-PILOT REGULATOR

10106

A
A component having a dual function of an amplifier and a pilot regulator. The pilot regulator adjusts the gain-frequency characteristics of a received signal(s) with reference to one or more control (pilot) frequencies.

AMPLIFIER (1), ACCELEROMETER SIGNAL

60048

C
An amplifier which amplifies the input and/or output signal voltage(s) of an accelerometer. Excludes AMPLIFIER, ELECTRONIC CONTROL; and AMPLIFIER, SYNCHRO SIGNAL.

AMPLIFIER, AUDIO FREQUENCY

00511

A
An electronic device whose audio frequency input signals control power from a source independent of the input signals and delivers audio frequency output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It operates at frequencies of 20 kilohertz and below. It may or may not have signal switching capabilities.

AMPLIFIER, AUDIO-RADIO FREQUENCY

31195

A
An electronic device whose audio and radio frequency input signals control power from a source independent of the input signals and delivers audio and radio frequency output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It operates at frequencies above and below 20 kilohertz.

AMPLIFIER, DATA ACQUISITION SYSTEM

62135

B
A specifically designed amplifier unit which amplifies low-level analog signals derived from a quantity of sources, such as strain gages, thermocouples, transducers, and the like, to useful levels for measurement, conditioning, monitoring, recording, indication, digital conversion, and the like. It may consist of single or multiple channels.

AMPLIFIER, DIRECT CURRENT

19692

P
An electronic device whose input signals control power from a source independent of the input signals and delivers output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It is used for small variations in direct current electrical impulses, and generally employs direct coupling between stages through resistors.

AMPLIFIER, ELECTRONIC CONTROL

00096

C
An electronic device which enables input signals to control a local source of power and deliver output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals, and are suitable for controlling or supplying power for the exciting of electric motors or similar devices. It includes devices commonly referred to as servo amplifiers, torque amplifiers and similar equipment only if these devices do not employ synchros nor incorporate servomechanisms. It does not include items which are properly classified as audio frequency, radio frequency, direct current or video amplifiers. For amplifiers that incorporate servomechanisms and employ synchros, see AMPLIFIER, SYNCHRO SIGNAL.

AMPLIFIER, INTERMEDIATE FREQUENCY

00885

Q
An electronic device whose input signals controls a local source of power and delivers an output signal of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It is tuned to a single fixed frequency which is the resultant of heterodyne action between a local oscillator frequency and a signal frequency introduced from an external source.

AMPLIFIER (1), MAGNETIC DRUM AMPLIFIER

60049

B
An amplifier for electronic computer data being stored on or removed from a magnetic drum.

AMPLIFIER, PARAMETRIC

60050

A
An item, the output characteristics of which are uniformly related to the input signal, but of greater amplitude with respect to current and/or voltage. It consists basically of an input signal inductance, an output signal inductance, and a semiconductor diode device. An external source of radio frequency power, commonly referred to as the "pump frequency" is injected across the diode at a frequency fundamentally or harmonically related to the input signal frequency. The diode, operating as a type of frequency-controlled capacitor, increases the amplitude of the input signal by an appreciable value, at an almost zero noise level. The characteristic of extremely low noise level at very high operating frequencies, makes the amplifier suitable for use with radar receivers, missile detection and tracking equipments, radio astronomy research, and the like. Excludes AMPLIFIER, RADIO FREQUENCY.

AMPLIFIER, RADIO FREQUENCY

00446

A
An electronic device whose radio frequency input signals control power from a source independent of the input signals, and delivers radio frequency output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It operates at frequencies above 20 kilohertz.

AMPLIFIER, STETHOSCOPE

47359

P
An item designed for attachment between the earpiece and the diaphragm of a stethoscope in order to enhance hearing quality. May be battery powered and include a visual on-off indicator. Excludes AMPLIFIER, DIRECT CURRENT.

AMPLIFIER, SYNCHRO SIGNAL

60052

C
A device designed to increase the capacity of a synchro transmission system and to isolate reflected oscillations from the input synchro signal. It includes a control transformer, an electronic or magnetic amplifier, a servomechanism and one or more synchro transmitters. May include synchro receiver(s). For amplifiers that do not include synchros and do not incorporate servomechanisms, see AMPLIFIER, ELECTRONIC CONTROL.

AMPLIFIER, TRIGGER PULSE

00094

B
An electronic device whose input signals control power from a source independent of the input signals and delivers output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It is controlled by triggering pulses of electrical energy.

AMPLIFIER, TRIGGER PULSE-VIDEO

02105

C
An electronic device whose input signals control power from a source independent of the input signals and delivers output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It incorporates two or more channels of which at least one is controlled by triggering pulses of electrical energy, and another is for electrical impulses which are video frequency signals which are converted into visual presentations (pictures) by means of a cathode ray tube or other items.

AMPLIFIER, TRIGGER PULSE, TRAINING

60053

B
An item identical in configuration to an AMPLIFIER, TRIGGER PULSE. It is designed for use in training procedures associated with assembly and/or disassembly of a weapon.

AMPLIFIER, VIDEO

00095

B
An electronic device whose video frequency input signals control power from a source independent of the input signals, and delivers output signals of greater amplitude with respect to current and/or voltage. The output signals characteristics are uniformly related to the input signals. It is generally used in equipment in which the electrical impulses are converted into visual presentation by means of cathode ray tubes or other items.

CALL-SIGNAL STATION

03119

A
A manually operated device which converts mechanical power into electrical energy for actuating an audible tone and may also actuate a visible signal at a similar remote station. It also receives electrical energy from another similar station and converts it into acoustical energy and may also actuate a visual signal. Includes a hand ringing generator, audible signaling device and cabinet. May include a selector switch, visual signal or volume control. See also GENERATOR, RINGING, HAND.

CODER-DECODER, INTERROGATOR SET

20335

C
A component which supplies coded pulses for an interrogator set in accordance with a predetermined combination of signals and accepts and decodes the keyed pulses from a transponder set.

CODER, AUDIO FREQUENCY

00370

E
An electronic device which in accordance with a predetermined combination of circuit elements, supplies specific audio frequency signals to other electronic equipment. See also CODER, RADIO BEACON.

CODER, COMMAND SIGNALS

61528

C
An item which supplies electronic command signals, in accordance with a predetermined combination, to other electronic equipment(s). Excludes CODER, AUDIO FREQUENCY; CODER, TRANSPONDER SET; GENERATOR, PULSE; and GENERATOR, ELECTRONIC COMMAND SIGNALS.

CODER, RADAR, GUIDED MISSILE

60228

C
A component which supplies keying pulses in accordance with a predetermined combination of signals. Designed to be used in a CODER SET,RADAR,GUIDED MISSILE and/or RADAR SET,GROUP to furnish signals for triggering a transmitting system of a radar, which transmits signals to a guided missile in flight. Excludes CODER, AUDIO FREQUENCY; CODER, TRANSPONDER SET; GENERATOR, PULSE; and GENERATOR, ELECTRONIC COMMAND SIGNALS. See also MODULATOR (as modified) and KEYER.

CODER, RADIO BEACON

19682

C
An electronic device which supplies keying pulses for radio frequency energy beacon equipment in accordance with a predetermined combination of signals. See also KEYER and MODULATOR (as modified). Excludes CODER, AUDIO FREQUENCY.

CODER, TRANSPONDER SET

00141

C
A component which supplies keying pulses for a transponder set in accordance with a predetermined combination of signals. Excludes CODER, AUDIO FREQUENCY. See also MODULATOR (as modified) and KEYER.

CONVERTER-SIMULATOR, SIGNAL

00966

D
A component which performs the dual function of producting a simulated signal and converting this signal into different electrical impulses.

CONVERTER, AMPLITUDE-SINGLE SIDE BAND

60306

F
An item that processes a signal in such a manner that it may be used to modulate a radio transmitter in either the amplitude or single side band mode. The item may also process signals derived from an amplitude or single side band modulated radio transmitter into a conventional form of aural intelligence.

CONVERTER, DATA-POWER SUPPLY, COUNTERMEASURES

41165

C
An electronic assembly that includes a data converter and a power supply. The data converter identifies enemy signals and conveys all threat data to the pilot. The power supply converts aircraft power to the required voltage of the countermeasures set.

CONVERTER, FREQUENCY SHIFT

00114

B
An electronic device which receives frequency shift signals from the intermediate frequency amplifier or audio output of a receiver, converts the signals into amplitude modulated tone or direct current signals and supplies it to terminal equipment, telephone lines, or a radio frequency link.

CONVERTER, FREQUENCY, ELECTRONIC

00329

D
An electronic device having frequency mixing circuits and an integral oscillator which mixes the incoming frequency(ies) with the oscillator frequency, the resultant frequency(ies) being a combination of the two sources. Includes equipment that performs these functions at either radio or power line frequencies. Excludes items that change frequency by means of rotating equipment or rectifier and switching or keying circuitry.

CONVERTER, SIGNAL DATA

00441

C
An electronic device which converts a data modulated signal of one form to a data modulated signal of another form.

CONVERTER, SINGLE SIDEBAND

05660

F
An electronic device which when connected to the intermediate frequency amplifier of an amplitude modulation receiver, converts the receiver into a single sideband exalted carrier receiver.

CONVERTER, WAVE FORM

10199

C
An electronic device which accepts an input signal of one waveform and produces an output signal of a radically different waveform. Excludes items which contain pulse generators requiring external triggering.

DECODER, AUDIO FREQUENCY

00301

C
An electronic device which converts coded electrical impulses into audible intelligence.

DECODER, AUDIO/VIDEO

46637

D
An electronic device which converts coded electrical impulses into audio and/or video intelligence generally used with satellite systems.

DECODER, COMMAND SIGNALS

60377

D
A component which converts coded impulses into electronic command signals, in accordance with a predetermined combination.

DECODER, COMPUTER

42589

D
A device which determines the meaning of a set of signals and initiates a computer operation based thereon. See also MATRIX, COMPUTER. Excludes MICROCIRCUIT (1) (as modified).

DECODER, PULSE

60378

D
An item that selectively extracts predetermined elements from an incoming pulse signal in a manner and sequence suitable for application to another component, such as a counter, indicator or recorder.

DECODER, VIDEO

00398

C
An electronic device which converts coded electrical impulses into signals which are used to present visual intelligence usually on the screen of a cathode ray tube. The means of display may be a component of the device.

DETECTOR, AUDIO FREQUENCY

60391

D
An item which demodulates audio frequency energy and may provide, in addition, a direct current control potential.

DETECTOR, CODED PULSE

60392

D
An item for the determination of the existence of coded pulses within a normal or uncoded radio frequency emission.

DETECTOR, LIGHT INTENSITY

60393

D
An item that senses variation of light intensity or color changes, and processes the derived signal for application to other components.

DETECTOR, RADIO FREQUENCY

05474

D
An electronic device which demodulates radio frequency energy and may also provide a direct current control potential.

DETECTOR, RADIO FREQUENCY INTERFERENCE

16439

F
An item primarily designed to locate objectionable radio frequency disturbances.

DETECTOR, VIDEO SIGNAL

05475

D
An electronic device which demodulates video signals. It is used with equipment in which electrical impulses are converted into visual presentations on the screen of a cathode ray tube.

DIGITIZER, VOICE

50429

A
An item that analyzes voice signals, converts them to a set of digital parameters, and transmits them over a digital data link or telephone line. At the receive end, another voice digitizer produces synthesized voice, designed for human speech reproduction. Converts voice to a digital bit stream suitable for half/full-duplex transmission. Both speech and data can be transmitted simultaneously using multiplexers. May be used in conjunction with encryption equipment, data multiplexers, and modems to form a secure voice system that will enable it to be operated over standard data networks.

DISCRIMINATOR, ELECTRICAL FREQUENCY

60403

D
An item consisting of one or more ratio detectors specifically designed to pass signals received in a frequency-modulated telemeter system.

DIVIDER-COMBINER, POWER FREQUENCY

49867

D
An item which has the dual functions of a frequency divider and a frequency mixer stage. The item combines the inputs of two or more signals into a single signal or group of signals, and also has the characteristic of dividing signals into predetermined proportional signals.

ELECTRONIC MODULE, STANDARDIZED

36647

C
An electronic device capable of controlling voltage and/or current to produce gain, oscillation, or similar integral functions. It consists of a collection of electronic parts such as capacitors, resistors, coils, relays, transistors, semiconductor devices, and microcircuits in a single replaceable package. The configuration, physical dimensions, and electrical parameters of the item have been standardized in accordance with Government and/or Industry specifications and/or standards. Excludes items with nonstandardized configuration. It is not subject to disassembly as distinguished from such items as CIRCUIT CARD ASSEMBLY and ELECTRONIC COMPONENTS ASSEMBLY. Do not use if a more specific item name exists such as AMPLIFIER (as modified), CODER (as modified), MICROCIRCUIT (as modified), and OSCILLATOR (as modified).

ENCODER, COUNTERMEASURES

51061

D
A device which is used to convert analog to digital; encodes frequency information to digital outputs; accepts coarse information from a channelized receiving subsystem; resolves fine parameter measurements and encodes parameters into a digital word for transmission to a control processor.

EXCITER, RADIO FREQUENCY

42422

A
An electronic device having an integral oscillator which is used to create a carrier frequency and voltage fed to a RECEIVER, RADAR; RECEIVER, RADIO; TRANSMITTER, RADAR; TRANSMITTER, RADIO. The item may have provision(s) for amplifying, multiplying, controlling and mode selection. It may be a line replaceable unit (LRU).

FILTER-AMPLIFIER, RADIO FREQUENCY

42785

A
A single unit with the dual function of filtering radio frequencies, whether low band, high band, or bandpass and amplifying the selected output.

FREQUENCY DIVIDER

00332

D
An electronic device for delivering an output wave whose frequency is a proper fraction (sub-multiple) of the input frequency. It may also provide incidental signal amplification.

FREQUENCY DIVIDER MODULE

49868

D
An electronic device for delivering an output wave whose frequency is a proper fraction (sub-multiple) of the input frequency. It may also provide incidental signal amplification. The configuration, physical dimensions, and electrical parameters of the item have been standardized in accordance with government and/or industry specifications and/or standards.

FREQUENCY DIVIDER-MULTIPLIER #

31194

D
An electronic device for delivering output waves at different frequencies which are proper fractions (sub-multiples) and multiple of the input wave frequency. It may also provide incidental signal amplification.

FREQUENCY EXTENDER, TELEPHONE

50430

D
An electronic device that expands the frequency capacity of the voice line which is connected to the telephone line and telephone set. May include a microphone input, tape input, an Automatic Gain Control (AGC) for leveling high and low frequency, and an amplifier that enhances the higher frequency.

FREQUENCY MULTIPLIER

00333

D
An electronic device for delivering an output wave whose frequency is a multiple of the input frequency. It may also provide incidental signal amplification.

GATE, ELECTRONIC

00410

G
An electronic device which permits the passage of a radio frequency signal for a period of time determined by its circuit constants. See also ELECTRONIC SWITCH.

Generator
1. (Electrical) A machine that converts mechanical energy into electrical energy.

GENERATOR, DIGITAL CLOCK PULSE

60543

G
An item consisting of an oscillator, amplifiers, waveform clippers, frequency dividers and the like. It provides a series of pulses, or pulse reference frames of information relating to precise time data, that is applied to other components for purposes of synchronization and control. It may derive signals from internal circuitry, auxiliary external circuitry or from sources such as the National Bureau of Standards Radio Station WWV. The item may include an integral register for circuit monitoring and adjustment purposes only. For items that are not compared to a standard time signal source, but are used as time bases for system triggers, synchronizing sources and the like, see GENERATOR, REFERENCE SIGNAL; GENERATOR, ELECTRONIC COMMAND SIGNALS and GENERATOR, PULSE.

GENERATOR, ELECTRONIC COMMAND SIGNALS

18684

C
An electronic device which provides signals for the actuation of components of a guided missile during prelaunch or testing function. See also PROGRAMMER, ELECTRONIC COMMAND SIGNALS.

GENERATOR, ELECTRONIC MARKER

19633

H
An electronic device which generates electrical pulses of precise characteristics with respect to amplitude, shape, duration, and recurrence. Such pulses serve as reference indices on the screen of a cathode ray tube for determination of data, such as radar target range, azimuth, elevation and similar applications. See also GENERATOR, SIGNAL and GENERATOR, PULSE.

GENERATOR (1), FUNCTION, ELECTRONIC TEST

47471

G
A specifically designed generator, used for electronic testing, which stimulates devices and/or circuits under test by simulating various waveforms such as sine, square, triangular, pulse or arbitrary. May include modulation, sweep, synthesizing and/or calibration facilities. See also GENERATOR (as modified).

GENERATOR, INTERFERENCE

19519

J
An electronic device which develops radio frequency signals that are amplitude or frequency modulated by random frequencies of erratic amplitude. The output signals are similar in nature to radio interference caused by atmospheric static.

GENERATOR, NOISE

41056

G
An item that generates one or more types of noise signals, covering a specified portion of the frequency spectrum. Types of noise generated may include gaussian, impulse, thermal or the like. The noise may be essentially random or of known content and duration at a fixed rate.

GENERATOR, PULSE

00411

G
An electronic device which develops a discontinuous electrical potential with an abrupt rate of change of voltage which determines the harmonic content of the pulse train. The duration of a single pulse output is relatively short compared to the time of the recurrence cycle. See also GENERATOR, SINGLE PULSE and GENERATOR, ELECTRONIC MARKER.

GENERATOR, PULSE-SWEEP

00412

G
An electronic device which functions as both a pulse generator and a sweep generator. It develops a discontinuous electrical potential with an abrupt rate of change of voltage to determine the harmonic content of a pulse train. The pulse duration is relatively short compared to the time of recurrence cycle. Also, it applies voltage or current to the deflection elements in a cathode ray tube in a way to make the deflection of the electron beam a known function of time or other data base against which other periodically occurring electrical phenomena may be examined, compared, or measured.

GENERATOR, REFERENCE SIGNAL

20372

K
An electronic device which produces precise signals accurately related to a quantity such as time. The output signals are permanently connected into and are essential to the operation of other devices or equipments. Excludes items used in testing or alignment operations. See also GENERATOR, SIGNAL and TIME SIGNAL SET.

GENERATOR, SWEEP

00413

G
An electronic device which applies voltage or current to the deflection elements in a cathode ray tube in a way to make the deflection for the electron beam a known function of time or other data base, against which other periodically occurring electrical phenomena may be examined, compared, or measured. It is often referred to as a timing axis oscillator.

GENERATOR, SYMBOL, HEAD-UP DISPLAY

51288

B
An item that receives digital, analog and synchro signals from systems such as radar, central air data computer, gyro platform and/or weapon systems. These signals are processed, and updated symbols are generated to provide a visual display to the operator on the DISPLAY UNIT, HEAD-UP.

GENERATOR, TIME CODE

62186

G
A device specifically designed for use as a central timing device for the purpose of providing time-correlated signals for magnetic tape recorders, oscillographs, strip chart recorders, cameras, digital printers, remote digital displays or direct computer entry. The device may generate various time code formats, contain special features for time comparisons against broadcast time signals and provide visual display in BCD or decimal format.

HEAD, DETECTING, MAGNETIC ANOMALY

46220

D
An item which detects magnetic field changes and transforms them into usable electronic data. It includes the magnetic sensor and associated hardware and circuitry to orient and monitor the sensor.

KEYER-MESSAGE CONVERTER

60668

D
A single component on which a predetermined message may be converted directly into International Morse Code characters on a punched tape and which, in turn, actuates a keying mechanism that is connected to the input of another component such as a radio transmitter. The output is the International Morse Code equivalent of the predetermined message.

KEYER, FREQUENCY SHIFT

19349

L
An electronic device which, in accordance with an intelligence signal, varies the frequency of a radio transmitter to which it is connected. It is generally used in the transmission of telegraph signals wherein the "MARK" signal is transmitted at a given frequency and the "SPACE" signal at a frequency displaced from the "MARK" frequency by a fixed number of hertz (usually 800).

MICROMETER, ELECTRONIC, MUTUAL INDUCTANCE

09785

B
One or more components, specifically designed for measuring and indicating and/or recording very small linear distances in air or across nonmetallic materials by mutual inductance variation or variation in self-inductance, these properties being essentially a linear function of distance from a reference metallic surface to an inductance probe.

MICROPHONE STATION

02034

A
An item with or without a microphone, specifically designed to direct sonic variations or equivalent electrical impulses to selected groups of operating stations.

MIXER STAGE, FREQUENCY

00334

D
An electronic device which mixes two or more input frequencies which are usually adjustable, combines them linearly in desired proportions to produce a common output signal which is a resultant of the input frequencies. Excludes items having integral oscillators. See also CONVERTER, FREQUENCY, ELECTRONIC and MIXER, CRYSTAL, WAVEGUIDE.

MODULATOR, RADAR

19063

M
An electronic device which produces a succession of short energy pulses for triggering a transmitter tube in a radar set. Excludes GENERATOR, PULSE; CODER, RADIO BEACON; and OSCILLATOR (as modified).

MODULATOR, RADIO TRANSMITTER

00768

N
An electronic device which varies the amplitude phase or frequency of a carrier wave signal generated by a radio transmitter according to a pre-determined scheme. Excludes CODER, RADIO BEACON and KEYER, FREQUENCY SHIFT.

MODULATOR, RADIOSONDE

00496

B
An item consisting of elements which are sensitive to atmospheric changes and which is primarily designed to vary the amplitude, phase, and/or frequency of a signal generated by a radiosonde transmitter.

MONITOR, AUDIO FREQUENCY

00769

D
A receiver for reproducing audio frequency transmission without interfering with it. It is used for checking on the operation of a transmitter, having audio frequency output, with regard to quality, deviation from assigned bands, materials transmitted, etc. It may include remote indicators.

MONITOR, AUDIO-RADIO FREQUENCY

31193

D
A receiver for reproducing audio and radio frequency transmission without interfering with it. It is used for checking on the operation of a transmitter, having audio and radio frequency output, with regard to quality, deviation from assigned bands, materials transmitted, etc. It may include remote indicators.

MONITOR, ERROR VOLTAGE

19374

D
A single component designed to display operational information from another component or set having an error voltage output.

MONITOR, RADIO FREQUENCY

00771

D
A receiver for reproducing radio frequency transmission without interfering with it. It is used for checking on the operation of a transmitter, having radio frequency output, with regard to quality, deviation from assigned bands, materials transmitted, etc. It may include remote indicators.

MONITOR, RECEIVER-TRANSMITTER, RADIO

48690

A
An electronic device usually consisting of an electronic control unit, display unit, cables, panels, and other items needed to monitor the reception and transmission of radio frequency signals.

MONITOR, TRANSPONDER SET

19376

D
An item that displays operational information from a TRANSPONDER SET to which it is connected.

MONITOR, VOLTAGE DEVIATION

21746

D
An item that accepts fixed voltages from test points in another component or set, and displays them in such a manner that deviation from a predetermined voltage value is readily apparent. The display is in terms of "good" and "bad" and is not in terms of voltage values. For items that display the same or similar information that is derived from a radio frequency signal input, see MONITOR, ERROR VOLTAGE. For items that indicate voltage values in either scaler or digital form. See VOLTMETER. See also INDICATOR (as modified).

Oscillator
1. (Electronic) An electronic device which generates alternating current power at a frequency(ies) determined by the values of certain constants in its circuits. The frequency(ies) is often an adjustable specified range. The operating frequency(ies) falls within the audio frequency spectrum (20 kilohertz and below) and/or the radio frequency spectrum (20 kilohertz and above). The frequency(ies) may be controlled by a CRYSTAL UNIT, QUARTZ, an ELECTRON TUBE, a microcircuit, a tuned inductive-capacitive circuit, or any similar device serving the same function.

OSCILLATOR (1), CRYSTAL CONTROLLED

34690

A
An oscillator whose operating frequency(ies) is controlled by a CRYSTAL UNIT, QUARTZ. For an oscillator controlled by a device other than a crystal, see OSCILLATOR (1), NONCRYSTAL CONTROLLED. See also GENERATOR, SIGNAL; and CALIBRATOR, FREQUENCY. Excludes FREQUENCY SUPPLY, TELEPHONE CARRIER; RESONATOR, TUNING FORK; and OSCILLATOR, PULSE DELAY.

OSCILLATOR (1), NONCRYSTAL CONTROLLED

34691

A
An oscillator whose operating frequency(ies) is controlled by a electronic device other than a CRYSTAL UNIT, QUARTZ. For an oscillator controlled by a crystal, see OSCILLATOR (1), CRYSTAL CONTROLLED. See also GENERATOR, SIGNAL; AND CALIBRATOR, FREQUENCY. Excludes FREQUENCY SUPPLY, TELEPHONE CARRIER; RESONATOR, TUNING FORK; and OSCILLATOR, PULSE DELAY.

OSCILLATOR, PULSE DELAY

00414

G
An electronic device which generates alternating current power at a frequency(ies) determined by the values of certain constants in its circuits. It is characterized by a network in the input and/or output circuits which causes a delay in transmission of a trigger pulse of predetermined width for a definite time interval. See also DELAY LINE.

PROCESSOR, COMMUNICATIONS

48410

C
Serves as the gateway between the communications subsystem and the mission control and real time local area network. One interface will be used for transmission and reception of messages traffic between the mission control area network and the message distribution processor. The other interface will be used to relay the digitized voice between the real time local area network and the commanders tactical terminal voice circuits, the voice order wire and back up voice wire to the aircraft pilots or the single channel ground and airborne radio system radio. The local area network interface is the system fiber distributed data interface standards.

PROCESSOR, COUNTERMEASURES SIGNAL

39753

C
An electronic device which, given an enemy radar signal, identifies the type of threat that the radar signal represents and conveys this data to the operator.

PROCESSOR, FLIGHT FORMATION

67955

C
A processor that replaces the station keeping equipment radar processor and the traffic alert and collision avoidance system processor. The unit processes data from the new flight formation system and TCAS and forwards the information to the intra-formation indicator(s). The unit also includes an interface for the identification friend/foe system to prevent interference. Excludes: PROCESSOR, RADAR DATA; PROCESSOR, RADAR TARGET DATA; and PROCESSOR, FLIGHT INFORMATION..

PROCESSOR, LAUNCH CONTROL

67811

A
An item that receives target data information from a fire control missile system computer that calculates target position, interception coordinates, interprets missile engagement zones, and generates missile and launching sequencing system commands at approaching threats.

PROCESSOR, RADAR DATA

39661

C
An item that receives, stores and processes radar data such as frequency, range, tracking and synchronizations. It receives input from the radar control panel and automatically processes the data. It provides computations and signal processing for the radar systems and subsystems. Excludes PROCESSOR, RADAR TARGET DATA.

PROCESSOR, RADAR TARGET DATA

62207

B
An item specifically designed to receive and process radar target data supplied by target tracking radar(s). Automatic processing of data received provides information required for rapid engagement of hostile aerial targets. Excludes PROCESSOR-VERIFIER, COMPUTER.

PROCESSOR, SIGNAL, SONAR DATA

48018

C
An item specifically designed to receive and process sonar target data supplied by a variety of shipboard and airborne sonar detection devices. Automatic processing of data received provides information for detecting, classifying and localizing surface and subsurface targets.

PULSE SHAPER

51469

B
An electronic device specifically designed to change one or more characteristics of a pulse. See also RESTORER, PULSE FORM.

QUANTIZER, VIDEO SIGNAL DATA

60886

C

RESTORER, PULSE FORM

06638

B
An electronic device designed to return to their original shape, electrical pulses which have been distorted by noise and circuit nonlinearities of wire or space transmission.

SEXTANT, ELECTRONIC

16331

D
An item utilizing electronic principles for orientating a point with respect to a selected member of the solar system. It does not use optical or ocular sighting methods. It includes ANTENNA, RECEIVER and one or more indicators. See also NAVIGATIONAL SET, ASTRONOMIC.

SIGNAL ASSEMBLY, SWITCHBOARD

00142

A
Two or more switchboard signals on a common mounting or mounted on each other.

SIGNAL, SWITCHBOARD

00464

A
An electrical item, part of a switchboard, which will give a visual indication of an input signal. May include an associated jack and switch assembly.

SWITCH-AMPLIFIER, RADIO FREQUENCY

48691

A
An item having the dual function of a radio frequency amplifier and a radio frequency switch. The switching function may be manual, electromechanical or by means of an arrangement of semiconductors and passive circuit devices.

SWITCH, ELECTRONIC

42816

D
An electronic device which provides for the transfer of the electrical signal input from one component to another, or between two or more components. It may also provide a continuous sequency of switching or sampling of a number of circuits. See also GATE, ELECTRONIC.

SYNTHESIZER, ELECTRICAL FREQUENCY

61159

D
An item with the combined functions of a FREQUENCY DIVIDER and a FREQUENCY MULTIPLIER. It provides a multiplicity of discrete output signals harmonically related to a standard source frequency, that may be utilized in radio receivers, transmitters, musical instruments, test equipment, density of rapidly selectable individual communication frequency bandwidth. See also GENERATOR, REFERENCE SIGNAL. Excludes FREQUENCY DIVIDER; FREQUENCY MULTIPLIER; and KEYBOARD INSTRUMENT, ELECTRONIC.

TRANSLATOR, SIGNAL DATA

61285

C
An item that processes a restricted bandwidth data modulated signal received on a wide band carrier frequency, to a standardized single radio frequency, and conversely processes a locally generated data modulated signal within a restricted bandwidth to a standardized single radio frequency, for transmission within the restricted bandwidth on any incremental frequency on the wide band carrier frequency. See also CONVERTER, SIGNAL DATA.

TUNER, RADIO FREQUENCY

00745

D
An electronic device consisting of the necessary elements to establish the upper and lower limits and to effect the variation (continuous or in steps) of the frequency of a tuned circuit by means of an integral variable capacitor, inductor, cavity, or line.

TUNING UNIT, RADIO FREQUENCY

00474

D
An electronic device consisting of the necessary elements to establish the frequency or frequency range of two or more tuned circuits to predetermined value or range. It may have facilities for calibration adjustments. There are no integral facilities for continuous variation of the frequency over the entire range of the item. It is generally used with an external variable capacitor or inductor which will effect the continuous variation of the frequency. This item is used to facilitate rapid band or channel changes in radio receivers, transmitter, amplifiers, or similar devices. It does not include electron tubes. See also COIL ASSEMBLY, RADIO FREQUENCY and TUNER, RADIO FREQUENCY.

WAVE FORM SYNTHESIZER

00183

D
An item generating power, variable in frequency and phase, and adjustable in harmonic content and harmonic amplitude. It may include monitoring facilities. See also ANALYZER, ELECTRICAL PULSE; ANALYZER, VIDEO INTEGRATING; INDICATOR, PANORAMIC; and OSCILLOSCOPE.

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