{"id":2214,"date":"2020-11-04T19:00:13","date_gmt":"2020-11-04T19:00:13","guid":{"rendered":"https:\/\/www.emcfastpass.com\/test-equipment\/?post_type=product&#038;p=2214"},"modified":"2026-03-19T19:50:47","modified_gmt":"2026-03-19T19:50:47","slug":"biconical-antenna-2","status":"publish","type":"product","link":"https:\/\/www.emcfastpass.com\/test-equipment\/shop\/antennas\/biconical-antenna-2\/","title":{"rendered":"Biconical Antenna &#8211; TBMA2"},"content":{"rendered":"<p>The TBMA2 is a biconical measurement antenna for EMC radiated emission testing and generating defined field strength. With its affordable price it is an excellent choice for any lab carrying out in house pre-compliance testing.<\/p>\n<p>It is characterized from 30 MHz to 300 MHz and has a directional pattern similar to a dipole antenna.<\/p>\n<p>The TBMA2 comes with a POM bracket with a \u00bc &#8221; thread insert for mounting the antenna on standard tripods.<\/p>\n<p>The TBMA2 radiating elements are made of stainless steel parts to avoid the disadvantages of contact degeneration over time, which are associated with non-welded designs using aluminum. The radiating elements are not welded but fastened with grub screws, which makes assembly \/ disassembly simple and makes the antenna easily storable and transportable.<\/p>\n<p>The antenna elements are fed via a 1:4 balun with 100 W power handling capability.<\/p>\n<h3>SPECIFICATION<\/h3>\n<ul>\n<li>Type: passive biconical<\/li>\n<li>Frequency range: 30 MHz\u2013 300 MHz<\/li>\n<li>Nominal impedance: 50 \u03a9<\/li>\n<li>Balun: 1:4<\/li>\n<li>Maximum continuous input RF power: 100 W<\/li>\n<li>Connector: N type female<\/li>\n<li>Isotropic Gain: -12.51 to 0.55, see Figure 2 and Table 1<\/li>\n<li>Antenna Factor: 10.8 to 26.3, see Figure 3 and Table 1<\/li>\n<li>Voltage Standing Wave Ratio (VSWR): 1.05 to 38.05, see Figure 4 and Figure 5<\/li>\n<li>Test standards: FCC, CISPR, SAE, RTCA-DO-160, Mil STD-461, etc.<\/li>\n<li>Length: 138.7 cm (54.6 &#8220;) tip<\/li>\n<li>Diameter: 54.2 cm (21.3 &#8220;)<\/li>\n<li>Depth: 80.3 cm (31.6 &#8220;) including balun<\/li>\n<li>Weight of one radiating element: 1.28 kg (2.82 lbs)<\/li>\n<li>Weight of holder\/balun: 0.96 kg (2.12 lbs)<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The TBMA2 is a biconical measurement antenna for EMC radiated emission testing and generating defined field strength. With its affordable price it is an excellent choice for any lab carrying<\/p>\n","protected":false},"featured_media":2215,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[129],"product_cat":[216],"product_tag":[],"class_list":{"0":"post-2214","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-tekbox","7":"product_cat-antennas","9":"first","10":"outofstock","11":"taxable","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Biconical Antenna - TBMA2 - EMC Chambers &amp; Test Equipment<\/title>\n<meta name=\"description\" content=\"Low cost biconical antenna for in-house EMC\/EMI radiated emissions and immunity pre-compliance testing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.emcfastpass.com\/test-equipment\/shop\/antennas\/biconical-antenna-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Biconical Antenna - TBMA2 - EMC Chambers &amp; 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