TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Low-power modulation. In an AM transmitter modulation of an RF stage prior to the final high-power stage. This system has the advantage that the modulator need only be of low power but the stage following the modulated amplifier must be linear to avoid distortion of the modulation envelope.  3, record 1, English, - low%2Dpower%20modulation

Record 1,  Textual support,  French

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

Modulación de la portadora de un transmisor de radio efectuada en una etapa anterior al amplificador de radiofrecuencia final.  2, record 1, Spanish, - modulaci%C3%B3n%20a%20bajo%20nivel

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

The transmitter is capable of operating on any frequency between 14 and 100 meters, and 112. 5 and 150 meters and employs class B modulation on the final power stage.  2, record 2, English, - class%20B%20modulation

Record number: 2, Textual support number: 2 CONT

Collins radio telegraph equipment ... used ideas that were later widely adopted in the radio field. These included multiple pretuned frequency bays, which allowed the operator to make quick frequency changes, and class B modulation, which permitted large audio power from relatively small tubes.  3, record 2, English, - class%20B%20modulation

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 DEF

Designación de un sistema de modulación de amplitud en cuya etapa final de la amplificación de frecuencia de la modulación se emplea el funcionamiento de un tubo electrónico en clase B.  1, record 2, Spanish, - modulaci%C3%B3n%20clase%20B

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

High-power modulation. In an AM transmitter amplitude modulation of the carrier by introducing the modulating signal into the anode circuit of the final amplifying stage. The power of the modulating signal thus approximates to that at the transmitter output.  5, record 3, English, - high%2Dpower%20modulation

Record number: 3, Textual support number: 2 CONT

Modulation is also identified as to level. High level modulation occurs when the modulating voltage is applied to the collector/plate circuit of the final power amplifier. With high level modulation, the final stage is operated class C and the preceding stages are also operated class C. The overall efficiency of such a transmitter is very high. A disadvantage of high level modulation is that comparatively high audio power is needed and several stages of voltage and power amplification may be required in the speech amplifier and modulator circuits.  4, record 3, English, - high%2Dpower%20modulation

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record number: 3, Textual support number: 1 DEF

Modulación de la portadora de un transmisor de radio efectuada en el amplificador de radiofrecuencia final, normalmente en su circuito anódico.  1, record 3, Spanish, - modulaci%C3%B3n%20a%20alto%20nivel

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

The sub-modulator is transformer-coupled to the modulator comprising two valves M. A. 12/15000, which is also transformer-coupled to the anode-lead of the fifth H. F. [high frequency] stage, thus providing anode modulation in the H. F. power-amplifier stage.  3, record 4, English, - submodulator

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 DEF

Amplificador de baja frecuencia que precede inmediatamente al modulador en un transmisor.  2, record 4, Spanish, - submodulador

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

First stage of modulation in a frequency division multiplex carrier system; the translation of a voiceband to its appropriate frequency band in the basic twelve-channel group.  3, record 5, English, - channel%20modulation

Record 5,  Textual support,  French

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

the wave that may be combined with a modulating signal in the last modulation stage of a radio transmitter.  1, record 6, English, - main%20carrier

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Oscillation ou onde, qui peut être combinée à une grandeur modulante dans le dernier étage de modulation d'un émetteur radioélectrique.  1, record 6, French, - porteuse%20principale

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 OBS

In carrier systems using more than one stage of modulation, a pregroup consists of four channels individually modulated to occupy the frequency range from 8 to 24 kilohertz.  1, record 7, English, - pregroup

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 OBS

multiplexage en fréquence. Groupe primaire de base : bande de fréquence, 60 à 108 kHz; groupe secondaire de base : 312 à 552 kHz; groupe tertiaire de base : 812 à 2044 kHz [...]  2, record 7, French, - avant%2Dgroupe%20de%20base

Record 7,  Textual support,  Spanish