JPS5229105A - Radio communicatin system - Google Patents

Radio communicatin system

Info

Publication number
JPS5229105A
JPS5229105A JP50105138A JP10513875A JPS5229105A JP S5229105 A JPS5229105 A JP S5229105A JP 50105138 A JP50105138 A JP 50105138A JP 10513875 A JP10513875 A JP 10513875A JP S5229105 A JPS5229105 A JP S5229105A
Authority
JP
Japan
Prior art keywords
radio
communicatin
beam width
communicatin system
satellite
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.)
Pending
Application number
JP50105138A
Other languages
Japanese (ja)
Inventor
Noriaki Ishida
Tadashi Takano
Takeji Nara
Yoshifusa Yamada
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP50105138A priority Critical patent/JPS5229105A/en
Publication of JPS5229105A publication Critical patent/JPS5229105A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To easily capture the satellite in a short time and track it, by means of using the beam width variable antenna in a satellite communication system, thereby establishing the beam width at the value so as to secure the trnasmission quality.
JP50105138A 1975-08-30 1975-08-30 Radio communicatin system Pending JPS5229105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50105138A JPS5229105A (en) 1975-08-30 1975-08-30 Radio communicatin system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50105138A JPS5229105A (en) 1975-08-30 1975-08-30 Radio communicatin system

Publications (1)

Publication Number Publication Date
JPS5229105A true JPS5229105A (en) 1977-03-04

Family

ID=14399377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50105138A Pending JPS5229105A (en) 1975-08-30 1975-08-30 Radio communicatin system

Country Status (1)

Country Link
JP (1) JPS5229105A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173769A (en) * 1974-12-20 1976-06-25 Sharp Kk Enshindatsusuikino baransaasochi
JPS5173768A (en) * 1974-12-20 1976-06-25 Sharp Kk Enshindatsusuikino jidobaransaasochino seizohoho
JPS536072U (en) * 1976-06-30 1978-01-19
JPH0832346A (en) * 1994-07-13 1996-02-02 Nec Corp Antenna for k band and method for expanding acquisition range therefor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173769A (en) * 1974-12-20 1976-06-25 Sharp Kk Enshindatsusuikino baransaasochi
JPS5173768A (en) * 1974-12-20 1976-06-25 Sharp Kk Enshindatsusuikino jidobaransaasochino seizohoho
JPS5615279B2 (en) * 1974-12-20 1981-04-09
JPS5615278B2 (en) * 1974-12-20 1981-04-09
JPS536072U (en) * 1976-06-30 1978-01-19
JPS5621108Y2 (en) * 1976-06-30 1981-05-19
JPH0832346A (en) * 1994-07-13 1996-02-02 Nec Corp Antenna for k band and method for expanding acquisition range therefor

Similar Documents

Publication Publication Date Title
JPS53148312A (en) Demodulation system for auxiliary line in direct repeating radio unit
JPS51130143A (en) Antenna unit
JPS547204A (en) Simultaneous transmission system for plural stations
JPS5372403A (en) Loop communication system
JPS5229105A (en) Radio communicatin system
JPS5339811A (en) High frequency amplifier circuit
JPS5235916A (en) Frequency control system in satelite communiction
JPS5437412A (en) Frame synchronous circuit
JPS5375841A (en) Antenna device
JPS5230107A (en) Maritime satellite system using variable beam width antenna
JPS53112645A (en) Antenna for moving body
JPS5254311A (en) Receiver
JPS5423456A (en) Oscillation circuit
JPS5391603A (en) Receiver for transportation information
JPS53127220A (en) Amplifier
JPS51140506A (en) Auto-tuning device
JPS52126112A (en) Interruption communication system of radio circuit
JPS53102794A (en) Base line correction apparatus
JPS5274207A (en) Carrier frequency control unit
JPS53112607A (en) Artificial satellite system
JPS5312216A (en) Radio multiple direct repeater
JPS5442916A (en) Automatic sweep receiver
JPS5365640A (en) Receiving system
JPS51138148A (en) Power amplifier
JPS5282001A (en) Receiving display unit