{"id":1475,"date":"2019-04-11T01:07:13","date_gmt":"2019-04-11T01:07:13","guid":{"rendered":"https:\/\/www.emcfastpass.com\/test-equipment\/?post_type=product&#038;p=1475"},"modified":"2026-03-19T19:50:58","modified_gmt":"2026-03-19T19:50:58","slug":"modulated-wideband-driver-amplifier-tbmda4","status":"publish","type":"product","link":"https:\/\/www.emcfastpass.com\/test-equipment\/shop\/rf-amplifiers\/modulated-wideband-driver-amplifier-tbmda4\/","title":{"rendered":"TekBox Modulated Wideband Driver Amplifier (TBMDA4B)"},"content":{"rendered":"<p>The TBMDA4B modulated wideband power amplifier is designed in order to create an inexpensive signal source for immunity testing of electronic building blocks and products. It is designed to be driven by the tracking generator output of spectrum analyzers. With an input power range of -20 dBm\u2026-10 dBm, it can boost the output power of a tracking generator up to 5W. With a frequency range from 100 kHz to 75 MHz, it is an ideal complement to the TBMDA3, which covers 10 MHz to 1 GHz.<\/p>\n<p>The TBMDA4B is ideal to drive Tekbox near field probes in order to find the sensitive spot of an electronic circuit or to create electric fields up to 550V\/m when driving the Tekbox TEM Cell TBTC0, 300V\/m when driving the TBTC1, 150V\/m when driving the TBTC2 or 100V\/m when driving the TBTC3. Test signals for immunity testing can be CW, AM or PM modulated. Consequently, the TBMDA4B provides built in modulation capability to generate 1 kHz AM or PM signals. In PM mode, the TBMDA4B can also generate a 217 Hz Signal with 12.5% duty cycle in order to simulate mobile phone TDMA noise.<\/p>\n<h3>Features<\/h3>\n<ul>\n<li>CW amplifier (modulation off)<\/li>\n<li>1 kHz, 80% AM modulation<\/li>\n<li>1 kHz, 50% duty cycle pulse modulation<\/li>\n<li>217 Hz, 12.5% duty cycle pulse modulation<\/li>\n<\/ul>\n<h3>Specifications<\/h3>\n<p><strong>Input \/ Output:<\/strong>\u00a050 Ohm, N female<br \/>\n<strong>Supply Voltage range:<\/strong>\u00a0110 V\u2026240 V<br \/>\n<strong>Supply power consumption:<\/strong>\u00a020 W<br \/>\n<strong>Operating temperature range:<\/strong>\u00a0-20\u00b0C to 50\u00b0C<br \/>\n<strong>Frequency range:<\/strong>\u00a0100 kHz \u2013 75 MHz<br \/>\n<strong>Saturated output power @ 100 kHz \/ Pin<\/strong>\u00a0= -10 dBm: 36.6 dBm (4.6W) typ.<br \/>\n<strong>Saturated output power @ 1 MHz \/ Pin =<\/strong>\u00a0-10 dBm: 37.6 dBm (5.8W) typ.<br \/>\n<strong>Saturated output power @ 10 MHz \/ Pin<\/strong>\u00a0= -10 dBm: 37.6 dBm (5.8W) typ.<br \/>\n<strong>Saturated output power @ 35 MHz \/ Pin<\/strong>\u00a0= -10 dBm: 37.1 dBm (5.1W) typ.<br \/>\n<strong>Saturated output power @ 75 MHz \/ Pin<\/strong>\u00a0= -10 dBm: 36.6 dBm (4.6W) typ.<br \/>\n<strong>Saturated output power @ 100 MHz \/ Pin<\/strong>\u00a0= -10 dBm: 31.6 dBm (1.4W) typ.<br \/>\n<strong>1dB output compression point @ 1 MHz:<\/strong>\u00a0+35.7 dBm typ.<br \/>\n<strong>1dB output compression point @ 35 MHz:<\/strong>\u00a0+34.8 dBm typ.<br \/>\n<strong>1dB output compression point @ 75 MHz:<\/strong>\u00a0+34.1 dBm typ.<br \/>\n<strong>2<sup>nd\u00a0<\/sup>harmonic, 35 MHz, Pout=36dBm:<\/strong>\u00a0&lt; &#8211; 18 dBc typ.<br \/>\n<strong>2<sup>nd\u00a0<\/sup>harmonic, 35 MHz, Pout=30dBm:<\/strong>\u00a0&lt; &#8211; 21 dBc typ.<br \/>\n<strong>3<sup>rd\u00a0<\/sup>harmonic, 35 MHz, Pout=36dBm:<\/strong>\u00a0&lt; &#8211; 19 dBc typ.<br \/>\n<strong>3<sup>rd\u00a0<\/sup>harmonic, 35 MHz, Pout=30dBm:<\/strong>\u00a0&lt; &#8211; 35 dBc typ.<br \/>\n<strong>Total harmonic distortion:<\/strong><br \/>\n5.9% @35MHz, Pout=27dBm typ.<br \/>\n8.4% @35 MHz, Pout=30 dBm typ.<br \/>\n12.3% @35 MHz, Pout=33 dBm typ.<br \/>\n18.1% @35 MHz, Pout=36 dBm typ.<br \/>\n<strong>Third order intercept point:<\/strong><br \/>\n+53dBm, @25 MHz, \u2206 f = 200kHz typ.<br \/>\n<strong>Noise figure:<\/strong>\u00a0@35 MHz: 7.2 dB<br \/>\n<strong>Internal modulation frequency AM:<\/strong>\u00a01 kHz \u00b120%<br \/>\n<strong>Internal modulation frequencies PM:<\/strong>\u00a01 kHz \u00b110%, 217 Hz \u00b120%<br \/>\n<strong>Duty cycle, PM:<\/strong>\u00a050% \u00b110% @ 1 kHz; 12.5% \u00b120% @ 217 Hz<\/p>\n<p>Application:<\/p>\n<ul>\n<li>General-purpose\u00a0power amplifier<\/li>\n<li>Signal source for immunity testing, driving near field probes<\/li>\n<li>Signal source for immunity testing, driving TEM Cells<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The TBMDA4B modulated wideband power amplifier is designed in order to create an inexpensive signal source for immunity testing of electronic building blocks and products. It is designed to be<\/p>\n","protected":false},"featured_media":1477,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[129],"product_cat":[132],"product_tag":[],"class_list":{"0":"post-1475","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-tekbox","7":"product_cat-rf-amplifiers","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>TekBox Modulated Wideband Driver Amplifier (TBMDA4B) - EMC Chambers &amp; Test Equipment<\/title>\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\/rf-amplifiers\/modulated-wideband-driver-amplifier-tbmda4\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TekBox Modulated Wideband Driver Amplifier (TBMDA4B) - EMC Chambers &amp; Test Equipment\" \/>\n<meta property=\"og:description\" content=\"The TBMDA4B modulated wideband power amplifier is designed in order to create an inexpensive signal source for immunity testing of electronic building blocks and products. 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