{"id":17634,"date":"2026-09-20T18:13:34","date_gmt":"2026-09-20T16:13:34","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&#038;p=17634"},"modified":"2026-10-31T02:04:38","modified_gmt":"2026-10-31T01:04:38","slug":"primalucelab-nsgen-ii-pour-calibration-absolue-spider300","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/primalucelab-nsgen-ii-pour-calibration-absolue-spider300\/","title":{"rendered":"PrimaLuceLab NSGen-II for SPIDER300 Absolute Calibration"},"content":{"rendered":"<div class=\"product\"><div class=\"product\"><h3>NSGen-II for SPIDER300 Absolute Calibration<\/h3>\n<p>The NSGen-II noise generator is used for the absolute calibration of SPIDER radio telescopes. The NSGEN-II-3 model is designed for the SPIDER300 and is used to measure radio flux in janskys.<\/p>\n<h3>Calibration Principle<\/h3>\n<p>The procedure uses radio sources whose flux is known from the literature. It compares a measurement of the source without injected noise, a measurement away from the source without injection, and then a measurement away from the source with the generator activated. These total power measurements are used to calibrate the generator and the radio telescope in order to obtain measurements of antenna temperature and flux.<\/p>\n<h3>Installation and Role<\/h3>\n<p>The generator is installed on the H-FEED 1420 MHz and connected to the radioastronomy receiver. It helps correct for atmospheric attenuation and gain variations, particularly those caused by the antenna\u2019s deformation under its own weight. The receiver and the radio telescope are compatible devices; they are not included in the generator\u2019s standard configuration.<\/p>\n<h3>Technical specifications<\/h3>\n<div class=\"pll-table-responsive\" style=\"max-width:100%\">\n<table style=\"width:100%;max-width:100%;border-collapse:collapse\">\n<tbody>\n<tr>\n<th scope=\"row\" style=\"text-align:left;vertical-align:top;padding:6px\">Reference<\/th>\n<td style=\"text-align:left;vertical-align:top;padding:6px\">NSGEN-II-3<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align:left;vertical-align:top;padding:6px\">Application<\/th>\n<td style=\"text-align:left;vertical-align:top;padding:6px\">SPIDER300 Absolute Calibration<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align:left;vertical-align:top;padding:6px\">H-FEED Frequency<\/th>\n<td style=\"text-align:left;vertical-align:top;padding:6px\">1420 MHz<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align:left;vertical-align:top;padding:6px\">Compatible receivers<\/th>\n<td style=\"text-align:left;vertical-align:top;padding:6px\">H142-One \/ H142-PRO<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align:left;vertical-align:top;padding:6px\">Calibration Measurements<\/th>\n<td style=\"text-align:left;vertical-align:top;padding:6px\">ON source, OFF source, CAL<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align:left;vertical-align:top;padding:6px\">Announced Items<\/th>\n<td style=\"text-align:left;vertical-align:top;padding:6px\">Generator, H142-Pro connection cable, metal mounting clamps<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><a href=\"https:\/\/www.primalucelab.com\/accessories-for-radio-telescopes\/nsgen-ii-noise-generator-for-absolute-calibration-for-spider300.html\" target=\"_blank\" rel=\"noopener\">PrimaLuceLab Official Fact Sheet<\/a><\/p>\n<p>Official production photo: The dimensional variation is not visible in the image.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>The NSGen-II noise generator is used for the absolute calibration of SPIDER radio telescopes. The NSGEN-II-3 model is designed for the SPIDER300 and is used to measure radio flux in janskys.<\/p>","protected":false},"featured_media":17633,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[594],"product_cat":[848],"product_tag":[],"class_list":["post-17634","product","type-product","status-publish","has-post-thumbnail","product_brand-primalucelab","product_cat-radio-telescopes","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/17634","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/comments?post=17634"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/17633"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=17634"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=17634"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=17634"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=17634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}