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1. |
Record Nr. |
UNINA9910712868503321 |
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Titolo |
The TRAQ Center : EPA's Transportation Air Quality Center : getting there with clean air / / United States Environmental Protection Agency, Air and Radiation, Office of Mobile Sources |
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Pubbl/distr/stampa |
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[Washington, D.C.] : , : United States Environmental Protection Agency, Air and Radiation, Office of Mobile Sources, , 1999 |
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Descrizione fisica |
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1 online resource (3 pages) : color illustrations |
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Soggetti |
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Automobiles - Pollution control devices - Inspection - United States |
Automobiles - Motors - Exhaust gas - United States |
Air quality management - United States |
Air quality management |
Automobiles - Motors - Exhaust gas |
Automobiles - Pollution control devices - Inspection |
United States |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Title from PDF title screen (viewed on October 18, 2018). |
"EPA420-F-99-012." |
"April 1999." |
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2. |
Record Nr. |
UNINA9910135516003321 |
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Titolo |
IEEE Std 187-1951 : IEEE Standard on Radio Receivers: Open Field Method of Measurement of Spurious Radiation From Frequency Modulation and Television Broadcast Receivers / / Institute of Electrical and Electronics Engineers |
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Pubbl/distr/stampa |
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New York, NY : , : IEEE, , 1950 |
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ISBN |
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Descrizione fisica |
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1 online resource ( pages) |
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Disciplina |
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Soggetti |
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Radio frequency modulation - Receivers and reception |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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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. |
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3. |
Record Nr. |
UNINA990009073520403321 |
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Titolo |
Vita dell'infanzia |
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Pubbl/distr/stampa |
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ISSN |
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Disciplina |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Periodico |
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