GB2230671B - Modulation of adjacent channels - Google Patents

Modulation of adjacent channels

Info

Publication number
GB2230671B
GB2230671B GB8923685A GB8923685A GB2230671B GB 2230671 B GB2230671 B GB 2230671B GB 8923685 A GB8923685 A GB 8923685A GB 8923685 A GB8923685 A GB 8923685A GB 2230671 B GB2230671 B GB 2230671B
Authority
GB
United Kingdom
Prior art keywords
modulation
adjacent channels
channels
adjacent
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 - Fee Related
Application number
GB8923685A
Other versions
GB8923685D0 (en
GB2230671A (en
Inventor
Neil Edwin Thomas
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.)
Marconi Instruments Ltd
Original Assignee
Marconi Instruments Ltd
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 Marconi Instruments Ltd filed Critical Marconi Instruments Ltd
Publication of GB8923685D0 publication Critical patent/GB8923685D0/en
Priority to EP90303155A priority Critical patent/EP0393856B1/en
Priority to DE69022467T priority patent/DE69022467T2/en
Priority to US07/502,752 priority patent/US5170486A/en
Priority to JP2099118A priority patent/JPH02296424A/en
Publication of GB2230671A publication Critical patent/GB2230671A/en
Application granted granted Critical
Publication of GB2230671B publication Critical patent/GB2230671B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
GB8923685A 1989-04-21 1989-10-20 Modulation of adjacent channels Expired - Fee Related GB2230671B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP90303155A EP0393856B1 (en) 1989-04-21 1990-03-23 Modulation of adjacent channels
DE69022467T DE69022467T2 (en) 1989-04-21 1990-03-23 Modulation of adjacent channels.
US07/502,752 US5170486A (en) 1989-04-21 1990-04-02 Apparatus for synthesizing a composite RF signal suitable for use as a test signal in testing adjacent channel rejection of radio receivers
JP2099118A JPH02296424A (en) 1989-04-21 1990-04-13 Composite rf signal synthesizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898909127A GB8909127D0 (en) 1989-04-21 1989-04-21 Modulation of adjacent channels

Publications (3)

Publication Number Publication Date
GB8923685D0 GB8923685D0 (en) 1989-12-06
GB2230671A GB2230671A (en) 1990-10-24
GB2230671B true GB2230671B (en) 1992-12-23

Family

ID=10655488

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898909127A Pending GB8909127D0 (en) 1989-04-21 1989-04-21 Modulation of adjacent channels
GB8923685A Expired - Fee Related GB2230671B (en) 1989-04-21 1989-10-20 Modulation of adjacent channels

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB898909127A Pending GB8909127D0 (en) 1989-04-21 1989-04-21 Modulation of adjacent channels

Country Status (1)

Country Link
GB (2) GB8909127D0 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2011206A (en) * 1977-12-27 1979-07-04 Hughes Aircraft Co Modulation system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2011206A (en) * 1977-12-27 1979-07-04 Hughes Aircraft Co Modulation system

Also Published As

Publication number Publication date
GB8909127D0 (en) 1989-06-07
GB8923685D0 (en) 1989-12-06
GB2230671A (en) 1990-10-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19991020