GB352590A - Improvements in or relating to radio signalling systems - Google Patents

Improvements in or relating to radio signalling systems

Info

Publication number
GB352590A
GB352590A GB12846/30A GB1284630A GB352590A GB 352590 A GB352590 A GB 352590A GB 12846/30 A GB12846/30 A GB 12846/30A GB 1284630 A GB1284630 A GB 1284630A GB 352590 A GB352590 A GB 352590A
Authority
GB
United Kingdom
Prior art keywords
telegraph
frequencies
relay
marking
spacing
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
GB12846/30A
Other languages
English (en)
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Publication of GB352590A publication Critical patent/GB352590A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
GB12846/30A 1929-04-25 1930-04-25 Improvements in or relating to radio signalling systems Expired GB352590A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE352590X 1929-04-25

Publications (1)

Publication Number Publication Date
GB352590A true GB352590A (en) 1931-07-16

Family

ID=6276253

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12846/30A Expired GB352590A (en) 1929-04-25 1930-04-25 Improvements in or relating to radio signalling systems

Country Status (3)

Country Link
US (1) US1942580A (enrdf_load_stackoverflow)
GB (1) GB352590A (enrdf_load_stackoverflow)
NL (1) NL31478C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
US1942580A (en) 1934-01-09
NL31478C (enrdf_load_stackoverflow)

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