{"id":13502,"date":"2024-08-24T15:03:19","date_gmt":"2024-08-24T13:03:19","guid":{"rendered":"https:\/\/nolle.engineering\/?post_type=product&#038;p=13502"},"modified":"2025-11-17T07:16:48","modified_gmt":"2025-11-17T06:16:48","slug":"l-band-antenna-h1","status":"publish","type":"product","link":"https:\/\/nolle.engineering\/en\/product\/l-band-antenna-h1\/","title":{"rendered":"L-Band Antenna H1 (1420MHz)"},"content":{"rendered":"<p>This version of the L-band antenna is designed to be used for radio astronomy in particular to observe the 21cm hyrogen line at 1420MHz, RHCP (<a href=\"https:\/\/nolle.engineering\/en\/2024\/08\/23\/setting-up-an-l-band-helix-antenna-for-radio-astronomy-a-practical-guide\/\">see related article here<\/a>)<\/p>\n<p>Dimensions:<\/p>\n<p><a href=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-12829\" src=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing.png\" alt=\"\" width=\"748\" height=\"312\" srcset=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing.png 3346w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing-700x292.png 700w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing-300x125.png 300w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing-1024x427.png 1024w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing-768x320.png 768w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing-1536x641.png 1536w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing-2048x854.png 2048w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing-18x8.png 18w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing-600x250.png 600w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/L-Band_v1.1_drawing-1320x551.png 1320w\" sizes=\"auto, (max-width: 748px) 100vw, 748px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>Example VSWR profile H1 version tuned to 1420MHz:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-13501 size-large\" src=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/20240808_192026.jpg_compressed-e1724504888817-1024x559.jpeg\" alt=\"\" width=\"1000\" height=\"546\" srcset=\"https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/20240808_192026.jpg_compressed-e1724504888817-1024x559.jpeg 1024w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/20240808_192026.jpg_compressed-e1724504888817-300x164.jpeg 300w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/20240808_192026.jpg_compressed-e1724504888817-768x419.jpeg 768w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/20240808_192026.jpg_compressed-e1724504888817-18x10.jpeg 18w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/20240808_192026.jpg_compressed-e1724504888817-700x382.jpeg 700w, https:\/\/nolle.engineering\/wp-content\/uploads\/2022\/08\/20240808_192026.jpg_compressed-e1724504888817.jpeg 1202w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li style=\"text-align: left;\">3D printed L-band antenna<\/li>\n<li style=\"text-align: left;\">Right hand circular polarized<\/li>\n<li style=\"text-align: left;\">7 or 10 turn helix element<\/li>\n<\/ul>\n<p style=\"text-align: left;\">","protected":false},"featured_media":12834,"template":"","meta":[],"product_brand":[],"product_cat":[52],"product_tag":[],"class_list":{"0":"post-13502","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-lband","8":"first","9":"instock","10":"taxable","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.0 - 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