IL47031A - Carrier frequency communication system with stand-by oscillators and switching and alarm arrangement - Google Patents

Carrier frequency communication system with stand-by oscillators and switching and alarm arrangement

Info

Publication number
IL47031A
IL47031A IL47031A IL4703175A IL47031A IL 47031 A IL47031 A IL 47031A IL 47031 A IL47031 A IL 47031A IL 4703175 A IL4703175 A IL 4703175A IL 47031 A IL47031 A IL 47031A
Authority
IL
Israel
Prior art keywords
oscillators
stand
switching
communication system
carrier frequency
Prior art date
Application number
IL47031A
Other versions
IL47031A0 (en
Original Assignee
Siemens 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
Priority claimed from DE19742417371 external-priority patent/DE2417371C3/en
Priority claimed from DE19742417264 external-priority patent/DE2417264C3/en
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of IL47031A0 publication Critical patent/IL47031A0/en
Publication of IL47031A publication Critical patent/IL47031A/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
    • H04B1/74—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 for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
IL47031A 1974-04-09 1975-04-07 Carrier frequency communication system with stand-by oscillators and switching and alarm arrangement IL47031A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742417371 DE2417371C3 (en) 1974-04-09 Multiple switching and alarming device
DE19742417264 DE2417264C3 (en) 1974-04-09 1974-04-09 Synchronous monitoring circuit

Publications (2)

Publication Number Publication Date
IL47031A0 IL47031A0 (en) 1975-06-25
IL47031A true IL47031A (en) 1979-01-31

Family

ID=25766952

Family Applications (1)

Application Number Title Priority Date Filing Date
IL47031A IL47031A (en) 1974-04-09 1975-04-07 Carrier frequency communication system with stand-by oscillators and switching and alarm arrangement

Country Status (8)

Country Link
JP (1) JPS50144367A (en)
AT (1) AT348025B (en)
FR (1) FR2275061A1 (en)
GB (1) GB1495419A (en)
IL (1) IL47031A (en)
IT (1) IT1034876B (en)
NL (1) NL168097C (en)
SE (1) SE397760B (en)

Also Published As

Publication number Publication date
IT1034876B (en) 1979-10-10
GB1495419A (en) 1977-12-21
JPS50144367A (en) 1975-11-20
FR2275061B1 (en) 1978-02-03
SE7504010L (en) 1975-10-10
SE397760B (en) 1977-11-14
ATA252675A (en) 1978-06-15
NL168097C (en) 1982-02-16
FR2275061A1 (en) 1976-01-09
NL7504199A (en) 1975-10-13
AU7999475A (en) 1976-10-14
AT348025B (en) 1979-01-25
NL168097B (en) 1981-09-16
IL47031A0 (en) 1975-06-25

Similar Documents

Publication Publication Date Title
JPS5298401A (en) Radio communication system
GB1544055A (en) Radio communication systems
JPS5383406A (en) Remote communication switching system
JPS5374874A (en) Current controlled ring oscillator and frequency synthesizer utilizing same
HK24079A (en) Microwave alarm
JPS52135243A (en) Radio frequency antenna device
ZA756164B (en) Isocyanurate foams
GB1548752A (en) Single frequency radio ranging system
CA993963A (en) Microwave oscillation device
JPS5384602A (en) Radio telephone system
JPS52110506A (en) Communication switching system
ZA755752B (en) Isocyanurate foams
ZA75400B (en) Electronic time switching telephone system
JPS52149948A (en) Q switching microwave oscillator
JPS52112216A (en) Complex communication system made by dividing frequency range
IL47031A (en) Carrier frequency communication system with stand-by oscillators and switching and alarm arrangement
GB1550324A (en) Oscillator and modulator
SE7509373L (en) DUPLEX TELECOMMUNICATIONS SYSTEMS WITH COMBINED MICROWAVE TRANSMITTERS AND RECEIVERS WITH DEVICE OSCILLATOR
JPS5358A (en) Fast responding pll oscillating circuit
JPS524107A (en) Frequency and time division multiplex communication system
JPS5342384A (en) High frequency changeeover switch
JPS52137241A (en) Microwave solid state oscillator
JPS5351902A (en) Radio communication system
YU79973A (en) Telecommunication system with carrier frequencies
JPS52146154A (en) Microwave oscillator