DK619788A - PROCEDURE FOR OPERATING A VHF RADIO TRANSMITTER SYSTEM WITH MULTIPLE TRANSMITTERS CONNECTED TO A COMMON ANTENNA, AND SUCH A TRANSMISSION SYSTEM - Google Patents

PROCEDURE FOR OPERATING A VHF RADIO TRANSMITTER SYSTEM WITH MULTIPLE TRANSMITTERS CONNECTED TO A COMMON ANTENNA, AND SUCH A TRANSMISSION SYSTEM

Info

Publication number
DK619788A
DK619788A DK619788A DK619788A DK619788A DK 619788 A DK619788 A DK 619788A DK 619788 A DK619788 A DK 619788A DK 619788 A DK619788 A DK 619788A DK 619788 A DK619788 A DK 619788A
Authority
DK
Denmark
Prior art keywords
common antenna
procedure
operating
vhf radio
radio transmitter
Prior art date
Application number
DK619788A
Other languages
Danish (da)
Other versions
DK619788D0 (en
Inventor
Helmut Bauer
Original Assignee
Rohde & Schwarz
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 Rohde & Schwarz filed Critical Rohde & Schwarz
Publication of DK619788D0 publication Critical patent/DK619788D0/en
Publication of DK619788A publication Critical patent/DK619788A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0475—Circuits with means for limiting noise, interference or distortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Television Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

In order to prevent the generation of interfering signals, e.g. in adjacent frequency ranges, in a VHF radio transmission installation with at least two transmitters connected via a transmitter filter to a common antenna, the input of the power amplifier of one transmitter is supplied with part of the output power of the control amplifier of at least one of the other transmitters in such a way as to compensate for the interference power of the other transmitter.
DK619788A 1987-11-19 1988-11-07 PROCEDURE FOR OPERATING A VHF RADIO TRANSMITTER SYSTEM WITH MULTIPLE TRANSMITTERS CONNECTED TO A COMMON ANTENNA, AND SUCH A TRANSMISSION SYSTEM DK619788A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873739112 DE3739112A1 (en) 1987-11-19 1987-11-19 VHF RADIO TRANSMITTER SYSTEM CONSISTING OF AT LEAST TWO TRANSMITTERS OF DIFFERENT FREQUENCY

Publications (2)

Publication Number Publication Date
DK619788D0 DK619788D0 (en) 1988-11-07
DK619788A true DK619788A (en) 1989-05-20

Family

ID=6340730

Family Applications (1)

Application Number Title Priority Date Filing Date
DK619788A DK619788A (en) 1987-11-19 1988-11-07 PROCEDURE FOR OPERATING A VHF RADIO TRANSMITTER SYSTEM WITH MULTIPLE TRANSMITTERS CONNECTED TO A COMMON ANTENNA, AND SUCH A TRANSMISSION SYSTEM

Country Status (7)

Country Link
EP (1) EP0316611B1 (en)
AT (1) ATE58809T1 (en)
DE (2) DE3739112A1 (en)
DK (1) DK619788A (en)
ES (1) ES2018875B3 (en)
FI (1) FI87288C (en)
NO (1) NO173160C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI88660C (en) * 1991-01-09 1993-06-10 Nokia Telecommunications Oy Radiosändarmottagarsystem

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE539584A (en) * 1954-07-07
US2968716A (en) * 1956-12-31 1961-01-17 Bell Telephone Labor Inc Reduction of cross-modulation between the output stages of adjacent transmitters
DE1070242B (en) * 1959-09-23 1959-12-03 Siemens & Halske Aktiengesellschaft, Berlin und München Arrangement for monitoring a multistage transmitter amplifier working with frequency conversion
FR1461550A (en) * 1965-10-22 1966-02-25 Thomson Houston Comp Francaise Improvements to parallel transmitter coupling devices
US3696429A (en) * 1971-05-24 1972-10-03 Cutler Hammer Inc Signal cancellation system
JPS60173934A (en) * 1984-02-17 1985-09-07 Mitsubishi Electric Corp Radio wave transmitter-receiver

Also Published As

Publication number Publication date
FI885324A (en) 1989-05-20
FI885324A0 (en) 1988-11-17
NO885153L (en) 1989-05-22
EP0316611B1 (en) 1990-11-28
FI87288C (en) 1992-12-10
EP0316611A3 (en) 1990-01-31
ES2018875B3 (en) 1991-05-16
NO885153D0 (en) 1988-11-18
NO173160B (en) 1993-07-26
DE3861185D1 (en) 1991-01-10
EP0316611A2 (en) 1989-05-24
NO173160C (en) 1993-11-03
DK619788D0 (en) 1988-11-07
ATE58809T1 (en) 1990-12-15
DE3739112A1 (en) 1989-06-01
FI87288B (en) 1992-08-31

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment