{"id":101,"date":"2017-09-28T15:08:05","date_gmt":"2017-09-28T18:08:05","guid":{"rendered":"http:\/\/scidev\/wordpress\/?page_id=101"},"modified":"2024-06-19T16:31:00","modified_gmt":"2024-06-19T20:31:00","slug":"pi230","status":"publish","type":"page","link":"https:\/\/www.apex-telescope.org\/ns\/observing\/the-telescope\/instruments\/pi230\/","title":{"rendered":"PI230"},"content":{"rendered":"\n<p>The PI230 receiver was built by the MPIfR in Bonn. It was installed in 2015 and is mounted in the Nasmyth\u2013B cabin of the telescope. The instrument is a collaboration between MPIfR and ESO and was replacing the <a href=\"http:\/\/www.apex-telescope.org\/ns\/instruments\/shefi\/\">SHeFI<\/a> APEX-1 band.<\/p>\n\n\n\n<p>It is a 230 GHz dual polarisation heterodyne system with 32 GHz bandwidth and 524,288 spectral channels. The receiver covers the spectral window of 195\u2013270 GHz and uses a sideband-separating (2SB) type of mixer.<\/p>\n\n\n\n<p>As of 2020, one of the polarisations is not available since 1 of the SIS mixers became part of nFLASH230. The instrument has been used by the EHT collaboration for the global mm VLBI campaigns.<\/p>\n\n\n\n<p>See more in the <a href=\"https:\/\/www.eso.org\/public\/teles-instr\/apex\/pi230\/\" target=\"_blank\" rel=\"noreferrer noopener\">ESO instrument page<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The PI230 receiver was built by the MPIfR in Bonn. It was installed in 2015 and is mounted in the Nasmyth\u2013B cabin of the telescope. The instrument is a collaboration between MPIfR and ESO and was replacing the SHeFI APEX-1 <a href=\"https:\/\/www.apex-telescope.org\/ns\/observing\/the-telescope\/instruments\/pi230\/\" class=\"read-more\">Read More &#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":10,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"spay_email":"","footnotes":""},"class_list":["post-101","page","type-page","status-publish","hentry"],"featured_image_urls":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":"","education-hub-thumb":""},"post_excerpt_stackable":"<p>The PI230 receiver was built by the MPIfR in Bonn. It was installed in 2015 and is mounted in the Nasmyth\u2013B cabin of the telescope. The instrument is a collaboration between MPIfR and ESO and was replacing the SHeFI APEX-1 band. It is a 230 GHz dual polarisation heterodyne system with 32 GHz bandwidth and 524,288 spectral channels. The receiver covers the spectral window of 195\u2013270 GHz and uses a sideband-separating (2SB) type of mixer. As of 2020, one of the polarisations is not available since 1 of the SIS mixers became part of nFLASH230. The instrument has been used&hellip;<\/p>\n","category_list":"","author_info":{"name":"apex","url":"https:\/\/www.apex-telescope.org\/ns\/author\/apex\/"},"comments_num":"0 comments","featured_image_urls_v2":{"full":"","thumbnail":"","medium":"","medium_large":"","large":"","1536x1536":"","2048x2048":"","education-hub-thumb":""},"post_excerpt_stackable_v2":"<p>The PI230 receiver was built by the MPIfR in Bonn. It was installed in 2015 and is mounted in the Nasmyth\u2013B cabin of the telescope. The instrument is a collaboration between MPIfR and ESO and was replacing the SHeFI APEX-1 band. It is a 230 GHz dual polarisation heterodyne system with 32 GHz bandwidth and 524,288 spectral channels. The receiver covers the spectral window of 195\u2013270 GHz and uses a sideband-separating (2SB) type of mixer. As of 2020, one of the polarisations is not available since 1 of the SIS mixers became part of nFLASH230. The instrument has been used&hellip;<\/p>\n","category_list_v2":"","author_info_v2":{"name":"apex","url":"https:\/\/www.apex-telescope.org\/ns\/author\/apex\/"},"comments_num_v2":"0 comments","_links":{"self":[{"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages\/101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/comments?post=101"}],"version-history":[{"count":3,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages\/101\/revisions"}],"predecessor-version":[{"id":3336,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages\/101\/revisions\/3336"}],"up":[{"embeddable":true,"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/pages\/10"}],"wp:attachment":[{"href":"https:\/\/www.apex-telescope.org\/ns\/wp-json\/wp\/v2\/media?parent=101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}