{"id":12112,"date":"2024-06-06T18:07:51","date_gmt":"2024-06-06T18:07:51","guid":{"rendered":"https:\/\/calian.stage.tbkdev.com\/dev\/calian.com\/src\/advanced-technologies\/gnss_product\/tw3990xf-multi-constellation-full-band-antenna\/"},"modified":"2026-01-29T18:48:39","modified_gmt":"2026-01-29T18:48:39","slug":"tw3990xf-multi-constellation-full-band-antenna","status":"publish","type":"gnss_product","link":"https:\/\/calian.stage.tbkdev.com\/dev\/calian.com\/src\/advanced-technologies\/gnss_product\/tw3990xf-multi-constellation-full-band-antenna\/","title":{"rendered":"TW3990XF Multi-Constellation Full-Band Antenna"},"content":{"rendered":"\n<p>The TW3990XF is a precision-tuned full-band Accutenna\u00ae technology antenna providing coverage for full-band GPS\/QZSS-L1\/L2\/L5\/L6, GLONASS-G1\/G2\/G3, Galileo-E1\/E5a\/E5b\/E6, BeiDou-B1\/B2\/B2a\/B3, NavIC-L5, including the satellite- based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], plus L-band Corrections. It is especially designed for precision full-band positioning.<\/p>\n\n\n\n<p>The radio frequency spectrum has become more congested as new LTE bands are activated and their signals or harmonic frequencies [e.g. 800MHz x 2 = 1600MHz (GLONASS-G1)] can affect GNSS antennas and receivers. In North America, planned Ligado signals at 1525 &#8211; 1536 MHz can especially impact GNSS antennas that support space-based L-band Corrections (1539 &#8211; 1559 MHz). New LTE signals in Europe [Band 32 (1452 &#8211; 1496 MHz)] and Japan [Bands 11 and 21 (1476 \u2013 1511 MHz)] have also been observed to interfere with GNSS signals. In addition, Inmarsat satellite communication (uplink: 1626.5 &#8211; 1660.5 MHz) can also affect GNSS signals. The new Tallysman XF antennas have been designed to mitigate out-of- band signals and prevent GNSS antenna saturation. Calian&#8217;s custom XF filtering mitigates all existing signals and new Ligado and LTE signals, enabling the antennas and attached GNSS receivers to perform optimally.<\/p>\n\n\n\n<p>Ideal for train control sensors, autonomous vehicle tracking and guidance, precision agriculture, and other applications where precision matters, The TW3990XF provides superior multipath signal rejection, a linear phase response, and tight phase centre variation (PCV).<\/p>\n\n\n\n<p>The TW3990XF features a precision-tuned, twin circular dual-feed, stacked patch element. The signals from the two orthogonal feeds are combined in a hybrid combiner, amplified in a wideband LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output. The antenna also has a strong pre-filter to mitigate inter-modulated signal interference from Ligado, LTE and other cellular bands. The TW3990XF offers excellent axial ratio and a tightly grouped phase centre variation.<\/p>\n\n\n\n<p>The TW3990XF meets all requirements of the Association of American Railroads (AAR)\u2019s Electronics Environmental Requirements and System Management Standard (S-9401.V1.0). In addition, it is also compliant with the EN45545-2, EN50121, EN50155, and EN61373 standards.<\/p>\n\n\n\n<p>The TW3990XF is housed in a through-hole mount, weatherproof enclosure for permanent installations. L-bracket (PN 23-0040-0) or pipe mount (PN 23-0065-0) are available. A 100 mm ground plane is provided with the antenna, which ensures optimal performance. This antenna is also available in an OEM format: TW3997XF (28 dB) and TW3990EXF (37 dB).<\/p>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Features<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Very low noise preamp (2.5 dB typ.) <\/li>\n\n\n\n<li>Low axial ratio (< 2.0 dB typ.)<\/li>\n\n\n\n<li>Tight phase centre variation<\/li>\n\n\n\n<li>High-gain LNA (37 dB typ.)<\/li>\n\n\n\n<li>Low current (32 mA typ.)<\/li>\n\n\n\n<li>ESD circuit protection (15 kV)<\/li>\n\n\n\n<li>Invariant performance from 2.5 to 16 VDC <\/li>\n\n\n\n<li>IP69K, CE RED, REACH, RoHS, and S-9401.V1.0 compliant<\/li>\n\n\n\n<li>EN45545-2, EN50121, EN50155, and EN61373 compliant<\/li>\n\n\n\n<li>AAR Certified<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Benefits<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ideal for full-band RTK surveying systems <\/li>\n\n\n\n<li>Excellent interference mitigation<\/li>\n\n\n\n<li>Excellent multipath rejection<\/li>\n\n\n\n<li>Increased system accuracy<\/li>\n\n\n\n<li>Excellent signal-to-noise ratio<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p> The TW3990XF is a precision-tuned full-band Accutenna\u00ae technology antenna providing coverage for full-band GPS\/QZSS-L1\/L2\/L5\/L6, GLONASS-G1\/G2\/G3, Galileo-E1\/E5a\/E5b\/E6, BeiDou-B1\/B2\/B2a\/B3, NavIC-L5, including the satellite- based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], plus L-band Corrections. It is especially designed for precision full-band positioning. <\/p>\n<p> The radio frequency spectrum has &hellip;<\/p>\n","protected":false},"featured_media":11946,"menu_order":0,"template":"","meta":{"_acf_changed":true,"content-type":""},"post_tag":[103,68,102,104,71,69],"gnss_category":[299],"gnss_industry":[296,304,297,301,302],"product_technology":[347],"mount_type":[70],"class_list":["post-12112","gnss_product","type-gnss_product","status-publish","has-post-thumbnail","hentry","tag-autonomous-vehicle-tracking","tag-housed","tag-precision-agriculture","tag-precision-gnss-position","tag-rail","tag-tw3xxx","gnss_category-products","gnss_industry-autonomous-vehicles","gnss_industry-navigation-and-orientation","gnss_industry-precision-agriculture","gnss_industry-precision-gnss-positioning","gnss_industry-rail","product_technology-patch-accutenna","mount_type-through-hole"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>TW3990XF Multi-Constellation Full-Band Antenna - Advanced Technologies<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TW3990XF Multi-Constellation Full-Band Antenna - Advanced Technologies\" \/>\n<meta property=\"og:description\" content=\"The TW3990XF is a precision-tuned full-band Accutenna\u00ae technology antenna providing coverage for full-band GPS\/QZSS-L1\/L2\/L5\/L6, GLONASS-G1\/G2\/G3, Galileo-E1\/E5a\/E5b\/E6, BeiDou-B1\/B2\/B2a\/B3, NavIC-L5, including the satellite- based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], plus L-band Corrections. It is especially designed for precision full-band positioning.  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