{"id":56941,"date":"2026-03-23T10:41:31","date_gmt":"2026-03-23T10:41:31","guid":{"rendered":"https:\/\/bis-space.com\/shop\/?post_type=product&#038;p=56941"},"modified":"2026-03-23T16:49:35","modified_gmt":"2026-03-23T16:49:35","slug":"jbis-079-02-0038","status":"publish","type":"product","link":"https:\/\/bis-space.com\/shop\/product\/jbis-079-02-0038\/","title":{"rendered":"Ultra-Long Wave Civilization Filter: a Selective Approach to Interstellar Communication"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p class=\"p2\"><b>Victor Zames<\/b><b><\/b><\/p>\n<p>2026.079.0038<\/p>\n<p class=\"p1\"><b>DOI <a href=\"https:\/\/doi.org\/10.59332\/jbis-079-02-0038\">https:\/\/doi.org\/10.59332\/jbis-079-02-0038<\/a><\/b><\/p>\n<p class=\"p1\">For decades, SETI projects have searched for extraterrestrial signals primarily in the centimeter and decimeter wave ranges. These searches implicitly assume that technologically advanced civilizations would broadcast in easily detectable bands. This paper proposes an alternative: the use of ultra-long waves (ULW), with wavelengths from hundreds of thousands to millions of kilometers, as a civilization filter \u2014 a deliberate physical and socio-technological barrier ensuring that only unified, interplanetary civilizations can detect and decode the signal. Such a model not only introduces a technological threshold but also an ethical safeguard, reducing the risk of premature or destabilizing contact. The ULW approach offers a potential explanation for the absence of detected signals despite decades of observation, suggesting that our current SETI strategies may systematically overlook a possible primary contact channel.<\/p>\n<p class=\"p1\"><b>Keywords: <\/b>SETI, Ultra-long waves, Interstellar Communication, Civilization Filter, Astrobiology<\/p>\n","protected":false},"featured_media":56882,"template":"","meta":[],"pwb-brand":[],"product_brand":[],"product_cat":[3911],"product_tag":[],"class_list":["post-56941","product","type-product","status-publish","has-post-thumbnail","product_cat-2026-papers","first","instock","downloadable","virtual","purchasable","product-type-simple","czr-hentry"],"jetpack_sharing_enabled":true,"brands":[],"_links":{"self":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product\/56941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/media\/56882"}],"wp:attachment":[{"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/media?parent=56941"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/pwb-brand?post=56941"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_brand?post=56941"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_cat?post=56941"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/bis-space.com\/shop\/wp-json\/wp\/v2\/product_tag?post=56941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}