187-1951 IEEE Standard on Radio Receivers: Open Field Method of Measurement of Spurious Radiation From Frequency Modulation and Television Broadcast Receivers

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Organization: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 1 January 1951
Status: inactive
Page Count: 20
ICS Code (Emission): 33.100.10
ISBN (Online): 0-7381-4349-9
DOI: 10.1109/IEEESTD.1951.119021

Abstracts

Standard

Modern broadcast radio receivers of the superheterodyne type are frequently sources of spurious radiation from the local oscillator, which radiation may cause severe interference with other services. In addition, in the case of television broadcast receivers, there may be radiation of power from other sources beside the local oscillator. In this standard the potential sources of spurious radiation from frequency modulation and television broadcast receivers are described and methods of measurement whereby the strength of some of these radiations may be determined are set up. Where the methods for the two classes of receivers differ, the specifications for each are outlined.<>

Document History

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January 1, 2004 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

IEEE Std 187-2003 is the standard for measurement methods of emissions from FM and television broadcast receivers in the frequency range of 9 kHz to 40 GHz. Spurious radiation from sound and television broadcast receivers of the superheterodyne type are possible sources of interference with other ra...

RP 187:1995 - Center, Aspect Ratio and Blanking of Video Images
December 6, 1995 - Society of Motion Picture and Television Engineers

Most video standards documents specify tolerances for individual picture blanking edges; center and aspect ratio are only implied by nominal blanking values, and vary as the blanking edges move within permitted tolerances. Modern techniques of post-production require compositing of images generated ...

187-1990 - IEEE Standard on Radio Receivers: Open Field Method of Measurement of Spurious Radiation From FM and Television Broadcast Receivers
January 1, 1990 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Spurious radiations from the local oscillator of modern broadcast radio receivers of the superheterodyne type are possible sources of interference with other radio services. In addition, in the case of television broadcast receivers, there may be radiation from sources other than the local oscillato...

187-1951 - IEEE Standard on Radio Receivers: Open Field Method of Measurement of Spurious Radiation From Frequency Modulation and Television Broadcast Receivers
January 1, 1951 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Modern broadcast radio receivers of the superheterodyne type are frequently sources of spurious radiation from the local oscillator, which radiation may cause severe interference with other services. In addition, in the case of television broadcast receivers, there may be radiation of power from oth...

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