GB485479A - Improvements relating to systems for relaying and distributing radio programmes - Google Patents

Improvements relating to systems for relaying and distributing radio programmes

Info

Publication number
GB485479A
GB485479A GB32596/36A GB3259636A GB485479A GB 485479 A GB485479 A GB 485479A GB 32596/36 A GB32596/36 A GB 32596/36A GB 3259636 A GB3259636 A GB 3259636A GB 485479 A GB485479 A GB 485479A
Authority
GB
United Kingdom
Prior art keywords
circuits
pass
acceptor
filter
channels
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB32596/36A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority claimed from GB21602/33A external-priority patent/GB423673A/en
Application filed by Individual filed Critical Individual
Publication of GB485479A publication Critical patent/GB485479A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/84—Wired systems combined with power distribution network

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radio Relay Systems (AREA)

Abstract

485,479. Distributing music &c. CARPENTER, R. E. H., and ECKERSLEY, P. P. Nov. 27, 1936, No. 32596. Addition to 423,673, [Group XL]. [Class 40 (iv)] In a high-frequency multi-programme distribution system, the output circuits of the transmitting amplifiers are connected in series and each comprises a band-pass filter and shunt circuits designed to pass the frequencies of the other amplifiers. As shown, the outputcircuit of the amplifier T1 comprises a lowpass filter 4 to suppress harmonics, a bandpass filter 7 .. 10 and acceptor circuits A2, A3 designed to pass the bands of the other channels. An alternative form of acceptor circuit consists of a shunt circuit comprising two inductances in series separated by two condensers, the junction point of these condensers being connected through a further condenser to one side of the output circuit. The highest and lowest frequency channels may employ low-pass and high-pass filters respectively instead of acceptor circuits or may employ single acceptor circuits covering the whole range of the other channels. In designing the filter 7 .. 10, account is taken of the resultant reactance of the acceptor circuits.
GB32596/36A 1933-08-01 1936-11-27 Improvements relating to systems for relaying and distributing radio programmes Expired GB485479A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB21602/33A GB423673A (en) 1936-11-27 1933-08-01 Improvements relating to systems for relaying and distributing radio programmes
GB215525X 1936-11-27

Publications (1)

Publication Number Publication Date
GB485479A true GB485479A (en) 1938-05-20

Family

ID=32510430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32596/36A Expired GB485479A (en) 1933-08-01 1936-11-27 Improvements relating to systems for relaying and distributing radio programmes

Country Status (5)

Country Link
US (1) US2031528A (en)
BE (2) BE404429A (en)
CH (1) CH215525A (en)
FR (2) FR777037A (en)
GB (1) GB485479A (en)

Also Published As

Publication number Publication date
FR777037A (en) 1935-02-08
BE404429A (en) 1934-08-31
US2031528A (en) 1936-02-18
CH215525A (en) 1941-06-30
FR48988E (en) 1938-10-05
BE424857A (en)

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