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GB1446723A - Radio relay systems - Google Patents

Radio relay systems

Info

Publication number
GB1446723A
GB1446723A GB3876373A GB3876373A GB1446723A GB 1446723 A GB1446723 A GB 1446723A GB 3876373 A GB3876373 A GB 3876373A GB 3876373 A GB3876373 A GB 3876373A GB 1446723 A GB1446723 A GB 1446723A
Authority
GB
United Kingdom
Prior art keywords
receiving end
transmitting
radio relay
relay systems
transit time
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
GB3876373A
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 Corp
Original Assignee
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 Corp filed Critical Siemens Corp
Priority to IN709/CAL/1974A priority Critical patent/IN138295B/en
Publication of GB1446723A publication Critical patent/GB1446723A/en
Expired legal-status Critical Current

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
    • H04B1/60—Supervising unattended repeaters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

1446723 Radio signalling SIEMENS AG 16 Aug 1973 [25 Sept 1972] 38763/73 Heading H4L A radio relay system is tested by first modulating a constant auxiliary frequency on to a measuring signal at the transmitting end and transmitting it to the receiving end to make a transit time measurement at the receiving end and then, by remote control from the transmitting end, likewise sending a constant auxiliary frequency in turn from each relay station to the receiving end to measure the transit time between each relay station and the receiving end.
GB3876373A 1972-09-25 1973-08-16 Radio relay systems Expired GB1446723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IN709/CAL/1974A IN138295B (en) 1973-08-16 1974-03-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722246912 DE2246912A1 (en) 1972-09-25 1972-09-25 PROCEDURE FOR MONITORING BROADBAND RADIO CONNECTION AND CIRCUIT FOR PERFORMING THE PROCEDURE

Publications (1)

Publication Number Publication Date
GB1446723A true GB1446723A (en) 1976-08-18

Family

ID=5857268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3876373A Expired GB1446723A (en) 1972-09-25 1973-08-16 Radio relay systems

Country Status (10)

Country Link
JP (1) JPS4973015A (en)
AT (1) AT336688B (en)
AU (1) AU469948B2 (en)
BE (1) BE805272A (en)
DE (1) DE2246912A1 (en)
FR (1) FR2200702B1 (en)
GB (1) GB1446723A (en)
IT (1) IT1006607B (en)
NL (1) NL7313228A (en)
SE (1) SE392553B (en)

Also Published As

Publication number Publication date
DE2246912A1 (en) 1974-04-11
AU6010173A (en) 1975-03-13
IT1006607B (en) 1976-10-20
FR2200702A1 (en) 1974-04-19
JPS4973015A (en) 1974-07-15
ATA797973A (en) 1976-09-15
SE392553B (en) 1977-03-28
NL7313228A (en) 1974-03-27
AU469948B2 (en) 1976-02-26
AT336688B (en) 1977-05-25
BE805272A (en) 1974-01-16
FR2200702B1 (en) 1978-11-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee