GB644106A - Improvements in or relating to two-way radio communication systems - Google Patents

Improvements in or relating to two-way radio communication systems

Info

Publication number
GB644106A
GB644106A GB3545/48A GB354548A GB644106A GB 644106 A GB644106 A GB 644106A GB 3545/48 A GB3545/48 A GB 3545/48A GB 354548 A GB354548 A GB 354548A GB 644106 A GB644106 A GB 644106A
Authority
GB
United Kingdom
Prior art keywords
frequency
transmitter
receiver
oscillator
keying
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
GB3545/48A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB644106A publication Critical patent/GB644106A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40Circuits
    • H04B1/50Circuits using different frequencies for the two directions of communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
GB3545/48A 1947-03-01 1948-02-06 Improvements in or relating to two-way radio communication systems Expired GB644106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US644106XA 1947-03-01 1947-03-01

Publications (1)

Publication Number Publication Date
GB644106A true GB644106A (en) 1950-10-04

Family

ID=22055794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3545/48A Expired GB644106A (en) 1947-03-01 1948-02-06 Improvements in or relating to two-way radio communication systems

Country Status (2)

Country Link
BE (1) BE482054A (enrdf_load_stackoverflow)
GB (1) GB644106A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE482054A (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
GB738145A (en) Radio transceiver circuits
JPS5912833Y2 (ja) マイクロ波トランシ−バ装置
GB582766A (en) Combined transmitter and receiver for radio signalling
US3020398A (en) Sideband intermediate frequency communications system
US3320535A (en) Transmitted signal two tone difference controlled single sideband squelch and avc system
GB551472A (en) Improvements in modulated high frequency carrier wave signalling systems
US2583484A (en) Combined angular velocity and pulse modulation system
US2531433A (en) Time sharing duplex communication system
US2125953A (en) Receiver of telephonic or telegraphic signals
GB644106A (en) Improvements in or relating to two-way radio communication systems
GB1048328A (en) Radio communication system
GB586534A (en) Improvements in or relating to super-regenerative radio receivers
US3534268A (en) Suppression of noise transmission in a network
US3448383A (en) Single frequency communication repeater
GB958634A (en) An ultra-short wave transmitter-receiver
US2691097A (en) Squelch circuit
US2501416A (en) Muting circuit for frequency modulation radio receivers
GB713915A (en) Improvements in or relating to radio receiving circuits
US2554847A (en) Telegraph mark-hold circuit
GB253152A (en) Improvements in or relating to wireless telegraphy and telephony
US2918571A (en) Communication system
GB547737A (en) Improvements in or relating to radio receivers
GB882135A (en) Improvements in or relating to doppler radar systems
GB613217A (en) Improvements in radio transmitting receiving system
US3075171A (en) Remote control receiver