SU10418A1 - Device for simultaneous radio reception and radio transmission - Google Patents

Description

Unlike. Telephone and telegraph communication by wire in radio engineering is accompanied by a repetition to carry out a dux set-up or a counter conversation, allowing talking subscribers to make comments and interrupt each other.

The invention aims to carry out a head-on telephone conversation or duplex telegraph operation by radio, using telephone or telegraph devices connected to the transmitter and receiver through a differential bridge with equalizing resistance, in order to bring the energy received and sent to the telephone and delegate networks. to magnitudes one order of magnitude.

In FIG. 1 shows a device diagram with a central battery; FIG. 2 the same, with a local battery.

The proposed device consists of an IP-M antenna with an extension coil and a tuning capacitor 1, 3 and 4, a receiving-amplifying device, a device 7, 8 and 12, a transmitting device 5, 6 and 11, a differential bridge consisting of windings of transformers 15, 16 and 18, equalizing resistances 17 and telephone sets C with a central battery (Fig. 1). Signal transmission to the antenna is carried out by transmitter 5, 6 and 11 in the usual way. The transmitter is manipulated from the microphone 9 of the telephone set (Fig. 1) via transformers (and 16). The electrical oscillations received by antenna 1 from the / correlating radio station enter the receiving device 7 and 8 and after amplification in the amplifying device 12 through its output transformer 15 and transformer 18 affect the telephone set 10. hours. The resulting electrical knees from. the amplifier in the differential-, nom {lost, although I name-i magnitude

The order of the microphone received and sufficient to modulate the transmitter, but due to branching in the primary winding of the transformer 16 and equalizing resistance 17 does not affect it. Thus, the received and amplified signals are transmitted only to the telephone, and the oscillations from the microphone modulate the transmitter without having a noticeable effect on the reception.

The subject of the patent.

Device for simultaneous X radio and radio reception without

The use of switches characterized by fTO in order to equalize the Transmission Energy and the energy of the Lieri is simple, and the radio network 1 is magnetically magnified with a current simultaneously with. the transmitter 5, 6, 11 and the receiver amplifier 7, 8,12, which transmitter and receiver, in turn, are connected by a magnetic terminal with a differential bridge 15, 16, 17 and 18 ,. consisting of self-induction coils 15, 16, 18 and equalizing resistance 17, self-induction coil 18 as a new bridge connected by a flux-magnetic circuit with a 9.20i loop of the telephone and microphone.

And g.