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RU2003125808A - RADIO RECEIVER - Google Patents

RADIO RECEIVER Download PDF

Info

Publication number
RU2003125808A
RU2003125808A RU2003125808/09A RU2003125808A RU2003125808A RU 2003125808 A RU2003125808 A RU 2003125808A RU 2003125808/09 A RU2003125808/09 A RU 2003125808/09A RU 2003125808 A RU2003125808 A RU 2003125808A RU 2003125808 A RU2003125808 A RU 2003125808A
Authority
RU
Russia
Prior art keywords
input
low
frequency amplifier
radio receiver
filtering
Prior art date
Application number
RU2003125808/09A
Other languages
Russian (ru)
Other versions
RU2260903C2 (en
Inventor
Борис Сергеевич Сергеев (RU)
Борис Сергеевич Сергеев
Original Assignee
Уральский государственный университет путей сообщени (УрГУПС) (RU)
Уральский государственный университет путей сообщения (УрГУПС)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Уральский государственный университет путей сообщени (УрГУПС) (RU), Уральский государственный университет путей сообщения (УрГУПС) filed Critical Уральский государственный университет путей сообщени (УрГУПС) (RU)
Priority to RU2003125808/09A priority Critical patent/RU2260903C2/en
Publication of RU2003125808A publication Critical patent/RU2003125808A/en
Application granted granted Critical
Publication of RU2260903C2 publication Critical patent/RU2260903C2/en

Links

Landscapes

  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Claims (1)

Радиоприемное устройство, содержащее антенну, подключенную ко входу приемно-детектирующего блока, выход которого соединен со входом усилителя низкой частоты, а также источник электропитания, положительный полюс которого через выключатель подключен к питающему входу усилителя низкой частоты, а отрицательный - к общим выводам усилителя низкой частоты, приемно-детектирующего блока и фильтрующей RC цепи, причем питающий вход приемно-детектирующего блока соединен с выходом фильтрующей RC цепи, отличающееся тем, что вход фильтрующей RC цепи подключен к катоду светодиода, анод которого соединен с питающим входом усилителя низкой частоты.A radio receiver comprising an antenna connected to an input of a receiving-detecting unit, the output of which is connected to an input of a low-frequency amplifier, as well as a power source, the positive pole of which is connected through a switch to the power input of a low-frequency amplifier, and the negative pole is connected to the common terminals of a low-frequency amplifier , the receiving-detecting unit and the filtering RC circuit, and the power input of the receiving-detecting unit is connected to the output of the filtering RC circuit, characterized in that the input of the filtering RC circuit in connected to the cathode of the LED, the anode of which is connected to the power input of the low-frequency amplifier.
RU2003125808/09A 2003-08-21 2003-08-21 Radio receiving device RU2260903C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003125808/09A RU2260903C2 (en) 2003-08-21 2003-08-21 Radio receiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003125808/09A RU2260903C2 (en) 2003-08-21 2003-08-21 Radio receiving device

Publications (2)

Publication Number Publication Date
RU2003125808A true RU2003125808A (en) 2005-02-20
RU2260903C2 RU2260903C2 (en) 2005-09-20

Family

ID=35218422

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2003125808/09A RU2260903C2 (en) 2003-08-21 2003-08-21 Radio receiving device

Country Status (1)

Country Link
RU (1) RU2260903C2 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974452A (en) * 1974-09-06 1976-08-10 Regency Electronics, Inc. Battery powered scanning receiver with synchronous power cycling through electrically operable visual indicators

Also Published As

Publication number Publication date
RU2260903C2 (en) 2005-09-20

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20120822