Presentation 2002/1/18
An Improved Preselector for Collocated Airborne VHF Transceivers
Yoshio TSUDA, Shigeru SHIMAMOTO,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Report a good effect of preselector which is useful to reduce numerous interference resulting from collocation of airborne VHF transceivers and their simultaneous operation. Research and experiment for the interference were carried out in order to confirm its mechanism at the field. Unwanted frequency suppression capability at the front end in the receiver portion of the VHF transceiver was measured and studied. As a result of the studies to reduce the interference, a contrivance tuning circuit using high Q varactor diodes application and an exclusive AGC circuit were developed and installed in the preselector.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Preselector / RF AGC / Collocation / Simultaneous operation / Varactor diode / Tuning circuit
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Conference Information
Committee SANE
Conference Date 2002/1/18(1days)
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Paper Information
Registration To Space, Aeronautical and Navigational Electronics (SANE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Improved Preselector for Collocated Airborne VHF Transceivers
Sub Title (in English)
Keyword(1) Preselector
Keyword(2) RF AGC
Keyword(3) Collocation
Keyword(4) Simultaneous operation
Keyword(5) Varactor diode
Keyword(6) Tuning circuit
1st Author's Name Yoshio TSUDA
1st Author's Affiliation Global Information and Telecommunication Studies, Waseda University : (Present address) Radio Maintenance Div., Japan Airlines Co. Ltd.()
2nd Author's Name Shigeru SHIMAMOTO
2nd Author's Affiliation Global Information and Telecommunication Studies, Waseda University
Date 2002/1/18
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Volume (vol) vol.101
Number (no) 608
Page pp.pp.-
#Pages 8
Date of Issue