{"id":217,"date":"2017-12-28T10:06:00","date_gmt":"2017-12-28T10:06:00","guid":{"rendered":"http:\/\/tenettech.net\/SDR\/product\/import-placeholder-for-246\/"},"modified":"2025-06-25T06:25:27","modified_gmt":"2025-06-25T06:25:27","slug":"octoclock-cda-2990","status":"publish","type":"product","link":"http:\/\/tenettech.net\/SDR\/product\/octoclock-cda-2990\/","title":{"rendered":"OctoClock CDA-2990"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p><a href=\" http:\/\/tenettech.net\/SDR\/contact\/\" target=\"_blank\" rel=\"noopener\"><input type=\"submit\" value=\"Call for pricing\" \/><\/a><\/p>\n<h3>Datasheet<\/h3>\n<p><a class=\"pdf\" href=\"https:\/\/www.ettus.com\/content\/files\/Octoclock_Spec_Sheet.pdf\" target=\"_blank\" rel=\"noopener\">OctoClock Datasheet<\/a><\/p>\n<ul>\n<li><strong>Note: The OctoClock CDA-2990 model shown on this page does NOT include an internal 10 MHz\/1 PPS source.\u00a0 An external, source must be used to generate and distribute 10 MHz\/1 PPS signals with this product.\u00a0 See the\u00a0<a title=\"OctoClock-G CDA 2990\" href=\"https:\/\/www.ettus.com\/product\/details\/OctoClock-G\">OctoClock-G\u00a0CDA 2990<\/a>\u00a0for a fully integrated solution with an internal GPSDO.<br \/>\n<\/strong><\/li>\n<\/ul>\n<ul>\n<li>8-Way Time and Frequency Distribution (1 PPS and 10 MHz)<\/li>\n<li>Convenient Solution for Multi-Channel Synchronization<\/li>\n<li>Use with MIMO Capable N-Series Devices for Coherent System<\/li>\n<li>External 10 MHz\/1 PPS Source Required<\/li>\n<li>19&#8243; Rackmount \u2013 1U<\/li>\n<\/ul>\n<p>The OctoClock CDA-2990 is an affordable solution for high-accuracy time and frequency reference distribution.\u00a0 This is a useful accessory for users that would like to build multi-channel systems that are synchronized\u00a0 to a common timing source.\u00a0 For example, the OctoClock CDA-2990 can be used to synchronize a system of\u00a0<a href=\"https:\/\/www.ettus.com\/product\/details\/UN210-KIT\">USRP N210s\u00a0<\/a>\u00a0for coherent operation.\u00a0 This is useful for many applications such as beamforming, direction-finding, diversity combining, or MIMO transceiver design.<\/p>\n<p>The OctoClock CDA-2990 accepts 1 pulse-per-second (1 PPS) and 10 MHz reference inputs from an\u00a0external source\u00a0such as a Rubidium standard.\u00a0 Active components are used to amplify and distribute these signals with matched-length traces to 8 outputs.<\/p>\n<p>Users have the option to purchase the upgraded\u00a0<a href=\"https:\/\/www.ettus.com\/product\/details\/OctoClock-G\">OctoClock-G\u00a0CDA-2990<\/a>, which includes an internal GPS-disciplined, oven-controlled oscillator (GPSDO).\u00a0 The GPSDO serves as an accurate reference that can be synchronized to the GPS timing standard.\u00a0 This allows developers to time-align multi-channel systems across the globe within ~50 ns.\u00a0 When the GPSDO is not locked to the GPS constellation, it still provides 10 MHz\/1 PPS signals, with an accuracy better than 25 ppb.\u00a0 If this upgrade is interesting for current or future applications, please visit the\u00a0<a href=\"https:\/\/www.ettus.com\/product\/details\/OctoClock-G\">OctoClock-G CDA-2990 product page.<\/a><\/p>\n<p><strong>Helpful Resources<\/strong><\/p>\n<ul>\n<li><a title=\"OctoClock Knowledge Base\" href=\"https:\/\/kb.ettus.com\/OctoClock\">OctoClock CDA-2990 Knowledge Base<\/a><\/li>\n<li><a href=\"http:\/\/www.ettus.com\/content\/files\/kb\/mimo_and_sync_with_usrp_updated.pdf\">Application Note \u2013 Synchronization and MIMO Capability with USRP Devices<\/a><\/li>\n<li><a title=\"USRP Hardware and USRP Manual\" href=\"http:\/\/files.ettus.com\/manual\/page_sync.html\">UHD API Notes for Multi-USRP Configurations<\/a><\/li>\n<\/ul>\n<p><strong>Sample Applications<\/strong><\/p>\n<ul>\n<li><a title=\"SDR Direction Finding\" href=\"http:\/\/sine.ni.com\/cs\/app\/doc\/p\/id\/cs-15016\">National Instruments \u2013 Direction Finding with NI-USRP<\/a><\/li>\n<li><a href=\"http:\/\/www.ni.com\/white-paper\/14311\/en\">Building an Affordable 8&#215;8 MIMO Testbed with NI-USRP<\/a><\/li>\n<\/ul>\n","protected":false},"featured_media":244,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[32],"product_tag":[],"class_list":{"0":"post-217","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-accessories","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-grouped"},"_links":{"self":[{"href":"http:\/\/tenettech.net\/SDR\/wp-json\/wp\/v2\/product\/217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/tenettech.net\/SDR\/wp-json\/wp\/v2\/product"}],"about":[{"href":"http:\/\/tenettech.net\/SDR\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"http:\/\/tenettech.net\/SDR\/wp-json\/wp\/v2\/comments?post=217"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/tenettech.net\/SDR\/wp-json\/wp\/v2\/media\/244"}],"wp:attachment":[{"href":"http:\/\/tenettech.net\/SDR\/wp-json\/wp\/v2\/media?parent=217"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"http:\/\/tenettech.net\/SDR\/wp-json\/wp\/v2\/product_brand?post=217"},{"taxonomy":"product_cat","embeddable":true,"href":"http:\/\/tenettech.net\/SDR\/wp-json\/wp\/v2\/product_cat?post=217"},{"taxonomy":"product_tag","embeddable":true,"href":"http:\/\/tenettech.net\/SDR\/wp-json\/wp\/v2\/product_tag?post=217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}