CH526237A - Device for monitoring telecommunication lines and radio lines by means of audio frequency - Google Patents

Device for monitoring telecommunication lines and radio lines by means of audio frequency

Info

Publication number
CH526237A
CH526237A CH997870A CH997870A CH526237A CH 526237 A CH526237 A CH 526237A CH 997870 A CH997870 A CH 997870A CH 997870 A CH997870 A CH 997870A CH 526237 A CH526237 A CH 526237A
Authority
CH
Switzerland
Prior art keywords
lines
audio frequency
radio
monitoring telecommunication
monitoring
Prior art date
Application number
CH997870A
Other languages
German (de)
Inventor
Bartoleit Lothar
Original Assignee
Neumann Elektronik Gmbh
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 Neumann Elektronik Gmbh filed Critical Neumann Elektronik Gmbh
Publication of CH526237A publication Critical patent/CH526237A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Alarm Systems (AREA)
CH997870A 1969-10-02 1970-07-01 Device for monitoring telecommunication lines and radio lines by means of audio frequency CH526237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691949792 DE1949792A1 (en) 1969-10-02 1969-10-02 Device for monitoring telecommunication lines and radio lines by means of audio frequency

Publications (1)

Publication Number Publication Date
CH526237A true CH526237A (en) 1972-07-31

Family

ID=5747174

Family Applications (1)

Application Number Title Priority Date Filing Date
CH997870A CH526237A (en) 1969-10-02 1970-07-01 Device for monitoring telecommunication lines and radio lines by means of audio frequency

Country Status (4)

Country Link
BE (1) BE756930A (en)
CH (1) CH526237A (en)
DE (1) DE1949792A1 (en)
NL (1) NL7012398A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2838816A1 (en) * 1978-09-06 1980-03-20 Tekade Felten & Guilleaume LOOP TEST FOR DATA TRANSFER ROUTES
AT406435B (en) * 1996-07-16 2000-05-25 Ericsson Austria Ag METHOD FOR DETERMINING THE LINE CONDITION OF A TRANSMISSION LINE AND CIRCUIT ARRANGEMENT FOR IMPLEMENTING THE METHOD

Also Published As

Publication number Publication date
NL7012398A (en) 1971-04-06
DE1949792A1 (en) 1971-04-08
BE756930A (en) 1971-03-16

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Legal Events

Date Code Title Description
PL Patent ceased