GB313176A - Improvements in methods of and means for radio broadcasting - Google Patents

Improvements in methods of and means for radio broadcasting

Info

Publication number
GB313176A
GB313176A GB17609/29A GB1760929A GB313176A GB 313176 A GB313176 A GB 313176A GB 17609/29 A GB17609/29 A GB 17609/29A GB 1760929 A GB1760929 A GB 1760929A GB 313176 A GB313176 A GB 313176A
Authority
GB
United Kingdom
Prior art keywords
zones
reception
wave
lengths
transmitting
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
GB17609/29A
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Publication of GB313176A publication Critical patent/GB313176A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12—Frequency diversity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)

Abstract

313,176. Lorenz Akt.-Ges., C. June 9, 1928, [Convention date]. Transmitting systems; fa d i n g , preventing.- Short-wave broadcasting is effected simultaneously on a number of different wave-lengths or by aerials that differ as regards the angle of vertical radiation in such a way that zones of non-reception for one transmission are filled up by zones of good reception for the other transmissions. As indicated in the diagram, one wavelength is well received in the zones I around the transmitting-station S, another in the zones II, and others in the zones III, IV. The wavelengths may be varied according to the time of day, or additional wave-lengths may be used. As each transmitter is only intended to give reception in its optimum zone, only low power is required.
GB17609/29A 1928-06-09 1929-06-07 Improvements in methods of and means for radio broadcasting Expired GB313176A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE313176X 1928-06-09

Publications (1)

Publication Number Publication Date
GB313176A true GB313176A (en) 1930-05-01

Family

ID=6139096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17609/29A Expired GB313176A (en) 1928-06-09 1929-06-07 Improvements in methods of and means for radio broadcasting

Country Status (4)

Country Link
US (1) US1798415A (en)
FR (1) FR676368A (en)
GB (1) GB313176A (en)
NL (1) NL28735C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177875A (en) * 1985-07-08 1987-01-28 Philips Electronic Associated Radio transmission system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091623B (en) * 1956-08-24 1960-10-27 Siemens Ag Messaging system
US5303259A (en) * 1991-11-07 1994-04-12 Loveall Peter S Frequency-hopped electronic signal transmitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177875A (en) * 1985-07-08 1987-01-28 Philips Electronic Associated Radio transmission system

Also Published As

Publication number Publication date
US1798415A (en) 1931-03-31
NL28735C (en) 1900-01-01
FR676368A (en) 1930-02-21

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