div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page1jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails1jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page2jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails2jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page3jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails3jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page4jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails4jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page5jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC 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data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=8 data-page=8 class=ts-thumb lazyload alt=Page 8: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails8jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=9Page 9button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page9jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=9 data-page=9 class=ts-thumb lazyload alt=Page 9: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails9jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=10Page 10button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page10jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=10 data-page=10 class=ts-thumb lazyload alt=Page 10: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails10jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=11Page 11button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page11jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=11 data-page=11 class=ts-thumb lazyload alt=Page 11: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC 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data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=14 data-page=14 class=ts-thumb lazyload alt=Page 14: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails14jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=15Page 15button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page15jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=15 data-page=15 class=ts-thumb lazyload alt=Page 15: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails15jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=16Page 16button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page16jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=16 data-page=16 class=ts-thumb lazyload alt=Page 16: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5thumbnails16jpg width=140 height=200 adivdivdiv class=ts-pagebutton class=gotoPage data-page=17Page 17button div class=ts-imagea href=https:reader042vdocumentsmxreader042viewer20220308055b0e40807f8b9aa31f8bc58bhtml5page17jpg target=_blank img data-url=emissions-for-more-than-40-years-these-observations-had-been-at-fixed-frequencieshtmlpage=17 data-page=17 class=ts-thumb lazyload alt=Page 17: emissions for more than 40 years These observations had been at fixed frequencies until 1988 when a spectrograph 70-500 MHz with a 10-m antenna was built In F Y 1992 April 1992 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC 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