SU34631A1 - Device for classifying radio transmission - Google Patents

Description

The invention relates to radiotelephony classifying devices. According to the invention, in order that the current from the microfocal is two circuits in which the phases are artificially shifted, one microphone circuit is connected to the anode circuit, and the other to the Hissing modulator grid circuit.

In FIG. Figure 1 shows a diagram of a microphone device used in the proposed device, shown schematically in FIG. 2; FIG. 3- shows a diagram of another embodiment of the device of FIG. 2

Microphone M with battery (Fig. 1) is included in the middle common wire of the two primary windings of the microphone transformer Tr. Self-induction is included in one of the perpendicular windings of this transformer, and in another container. As a result of this inclusion, currents corresponding to the conversation in front of the microphone will flow through each winding, but. shifted relative to each other in phase at a certain angle, the value of which depends on the values of capacitance and self-induction included in the primary windings of the microphone transformer. By self-induction and capacitance variables, you can change the phase shift in the desired range. With the secondary winding of this ouesi for (417)

the mator is filmed two phased conversations.

FIG. 2 shows a diagram of the proposed device: the application of the above-described microphone switch on the Hissing modulator circuit.

From one of the windings of the microphone transformer, the conversation is fed, as usual, to the grid of the modulator lamp L; from the second winding, the conversation is fed to the primary winding of the transformer Tp, the secondary winding of which serves

reactive cottage in the usual Hissing scheme. Both of these conversations are not fed directly from the microphone transformer, but through the appropriate Y and Y amplifiers for proper selection of the depth of the two modulations.

FIG. 3 is a diagram of another embodiment of the device as applied to a low-frequency amplifier.

Microphone device; it consists of two transformers Tjr, and G-, the primary windings of which are connected in parallel to the battery circuit E, and the LG microphone connected in series with it. A capacitance is connected in series with the primary winding of one of the transformers, and self-induction is included in the primary winding circuit of the second transformer.

The secondary winding of the transformer Tr is connected to the grid of the first lamp L

cascade low frequency. In the anode of this lamp In Yyuchena the secondary winding of the transformer Tr as a reactive coil. Conversation talkers that are out of phase; They are transmitted through a transient capacitance to the next lamp of a "normal low-frequency amplifier."

The subject matter of the invention.

1. A device for classifying a radiotelephone transmission is different in that in order for the current from the microphone to power two circuits in which the phases are artificially shifted, one microphone circuit is connected to the anode circuit and the other to the Hissing modulator grid circuit. .

/ 2. The form of the device according to claim 1, wherein one circuit from the microphone is connected to the grid of the first low frequency stage and the second circuit to the primary winding of the transformer, the secondary winding of which serves as a reactive coil in the anode circuit of the first stage.