FI932700A - Device for transmitting alarm signals from an antenna amplifier unit - Google Patents

Device for transmitting alarm signals from an antenna amplifier unit Download PDF

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Publication number
FI932700A
FI932700A FI932700A FI932700A FI932700A FI 932700 A FI932700 A FI 932700A FI 932700 A FI932700 A FI 932700A FI 932700 A FI932700 A FI 932700A FI 932700 A FI932700 A FI 932700A
Authority
FI
Finland
Prior art keywords
antenna
antenna amplifier
amplifier unit
alarm signals
cable
Prior art date
Application number
FI932700A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI98107B (en
FI932700A0 (en
FI98107C (en
Inventor
Timo Isomaeki
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Priority to FI932700A priority Critical patent/FI98107C/en
Publication of FI932700A0 publication Critical patent/FI932700A0/en
Publication of FI932700A publication Critical patent/FI932700A/en
Publication of FI98107B publication Critical patent/FI98107B/en
Application granted granted Critical
Publication of FI98107C publication Critical patent/FI98107C/en

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  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The subject of the invention is an apparatus for transmission of alarm data from an antenna amplifier unit 1 to a receiver unit 2 placed separate from the antenna 3, comprising a power supply means 20 for supplying the operating voltage to the antenna amplifier unit along an antenna cable 4. The antenna amplifier unit comprises a DTMF generator 13 which is connected to the antenna cable 4 for sending of sonic frequency pairs describing the condition of the antenna amplifier to the antenna cable as response to the antenna amplifier's internal alarm signals 12 which are fed to the control inputs of the DTMF generator. The receiver unit 2 comprises a DTMF receiver 21 for reception of said sonic frequency pairs from the antenna cable and for decoding into the original alarm signals 22. <IMAGE>
FI932700A 1993-06-11 1993-06-11 Device for transmitting alarm signals from an antenna amplifier unit FI98107C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI932700A FI98107C (en) 1993-06-11 1993-06-11 Device for transmitting alarm signals from an antenna amplifier unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI932700A FI98107C (en) 1993-06-11 1993-06-11 Device for transmitting alarm signals from an antenna amplifier unit
FI932700 1993-06-11

Publications (4)

Publication Number Publication Date
FI932700A0 FI932700A0 (en) 1993-06-11
FI932700A true FI932700A (en) 1994-12-12
FI98107B FI98107B (en) 1996-12-31
FI98107C FI98107C (en) 1997-04-10

Family

ID=8538120

Family Applications (1)

Application Number Title Priority Date Filing Date
FI932700A FI98107C (en) 1993-06-11 1993-06-11 Device for transmitting alarm signals from an antenna amplifier unit

Country Status (1)

Country Link
FI (1) FI98107C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045996A1 (en) * 2003-11-08 2005-05-19 Robert Bosch Gmbh Antenna booster

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045996A1 (en) * 2003-11-08 2005-05-19 Robert Bosch Gmbh Antenna booster
JP2007535207A (en) * 2003-11-08 2007-11-29 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング Antenna amplifier

Also Published As

Publication number Publication date
FI98107B (en) 1996-12-31
FI932700A0 (en) 1993-06-11
FI98107C (en) 1997-04-10

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: NOKIA TELECOMMUNICATIONS OY

BB Publication of examined application