BE477862A - - Google Patents

Info

Publication number
BE477862A
BE477862A BE477862DA BE477862A BE 477862 A BE477862 A BE 477862A BE 477862D A BE477862D A BE 477862DA BE 477862 A BE477862 A BE 477862A
Authority
BE
Belgium
Prior art keywords
frequency
channel
circuit
relay
receiver
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE477862A publication Critical patent/BE477862A/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0018Communication with or on the vehicle or train
    • B61L15/0036Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J1/00Frequency-division multiplex systems
    • H04J1/02Details
    • H04J1/10Intermediate station arrangements, e.g. for branching, for tapping-off

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Selective Calling Equipment (AREA)
BE477862D BE477862A (cs)

Publications (1)

Publication Number Publication Date
BE477862A true BE477862A (cs)

Family

ID=125810

Family Applications (1)

Application Number Title Priority Date Filing Date
BE477862D BE477862A (cs)

Country Status (1)

Country Link
BE (1) BE477862A (cs)

Similar Documents

Publication Publication Date Title
FR2527403A1 (fr) Systeme et circuit de telephone a haut-parleur
BE477862A (cs)
US2147820A (en) Circuit arrangement for recording telephonic communications
BE477861A (cs)
CH293580A (fr) Installation radiotéléphonique comprenant plusieurs postes mobiles.
DE2651954C3 (de) Schaltungsanordnung für einen organisch in ein Rundfunk-Gerät integrierten CB-Empfänger mit Ruftonsteuerung und Stand-By-Schaltung
BE406893A (cs)
CH143531A (fr) Installation téléphonique automatique à haute fréquence.
BE506085A (cs)
BE545093A (cs)
BE483724A (cs)
BE438042A (cs)
BE477820A (cs)
BE483535A (cs)
BE466692A (cs)
CH188738A (fr) Installation téléphonique.
BE332313A (cs)
BE470231A (cs)
BE470230A (cs)
BE354594A (cs)
BE409638A (cs)
BE389548A (cs)
BE334338A (cs)
CH270406A (fr) Installation de télécommunication à onde porteuse.
BE412135A (cs)