{"id":1888,"date":"2014-10-24T10:45:35","date_gmt":"2014-10-24T01:45:35","guid":{"rendered":"https:\/\/micronix-jp.com\/?p=1888"},"modified":"2024-09-04T11:20:06","modified_gmt":"2024-09-04T02:20:06","slug":"msa500technicalreport3e","status":"publish","type":"post","link":"https:\/\/micronix-jp.com\/english\/tech\/technology\/msa500technicalreport3e.html","title":{"rendered":"IQ data in Signal analyzer MSA500 series"},"content":{"rendered":"<div class=\"wp-block-vk-blocks-table-of-contents-new vk_tableOfContents vk_tableOfContents-style-default tabs\"><div class=\"tab\"><div class=\"vk_tableOfContents_title\">\u76ee\u6b21<\/div><input type=\"checkbox\" id=\"chck1\"\/><label class=\"tab-label vk_tableOfContents_openCloseBtn button_status button_status-close\" for=\"chck1\"><\/label><ul class=\"vk_tableOfContents_list tab_content-close\"><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\"><a href=\"#vk-htags-8fa6ae04-ec2a-4dbf-ad8a-12e632783f34\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">1. <\/span>About IQ data<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\"><a href=\"#vk-htags-be9ecffc-7e39-4e65-a415-d21c8728f79d\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">2. <\/span>Frequency conversion and generation of complex signal<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\"><a href=\"#vk-htags-b4a3330b-44e6-4ac1-9003-bac92b0a1d5e\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">3. <\/span>IQ orthogonal display<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\"><a href=\"#vk-htags-781d6a11-035e-4e10-9589-7ac68a1adca2\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">4. <\/span>Significance of IQ conversion<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-3\"><a href=\"#vk-htags-22ee89e1-c7dc-4a26-bef8-f0ee4e18e109\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">4.1. <\/span>Significance1:The bandwidth to be analyzed is doubled at the same sa mple frequency.<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-3\"><a href=\"#vk-htags-54d14d27-fa7c-4a40-b25e-8615212340b9\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">4.2. <\/span>Significance2:The center frequency can be shifted to 0 Hz without influence of an image.<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-3\"><a href=\"#vk-htags-9bed69e6-b33a-4988-b2b7-2d532bdff539\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">4.3. <\/span>Significance3:Instantaneous phase \u03c6 (t) can be measured.<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-3\"><a href=\"#vk-htags-33cda7e1-fbed-46ec-960f-08215d3d6141\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">4.4. <\/span>Significance4:Instantaneous frequency \uff46(t) can be measured.<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-3\"><a href=\"#vk-htags-9e41db51-73af-4e40-a54d-484e199227ea\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">4.5. <\/span>Significance5:Instantaneous power \uff30(t) can be measured.<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\"><a href=\"#vk-htags-deb71c95-f922-4aef-a9bc-a8d9cc12a05c\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">5. <\/span>Expressing modulation and demodulation of communicat ion by IQ<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\"><a href=\"#vk-htags-4e513bf2-0da0-4266-b591-1ebb9d3ad72a\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">6. <\/span>Products introduction<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-3\"><a href=\"#vk-htags-7ec8c2c9-d352-4855-a15d-f080498ca92e\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">6.1. <\/span>Handheld signal analyzer MSA500 series<\/a><\/li><\/ul><\/div><\/div><h2 class=\"wp-block-heading\" id=\"vk-htags-8fa6ae04-ec2a-4dbf-ad8a-12e632783f34\">About IQ data<\/h2><p>At Signal analyzer\/spectrum analyzer MSA500 series, after the input signal is converted into IQ signals, the digital signal processing is performed and the result is displayed on the screen.<\/p><p>On this page, the IQ data will be explained.<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/eng\/image\/technology\/MSA500TechnicalReport3e-00.gif\" alt=\"Circuit diagram\"\/><\/figure><p>Numerical Controlled Oscillator. The cos(\u03c9t) and sin(\u03c9t) are out put from ROM data or by being calculated by software.<\/p><p>The digital signal f (t) converted by ADC is a real signal.<br>\nThis real signal f (t) is Fourier-transformed. \u21d2 Frequency spectrum F(\u03c9) is symmetric with respect to \u03c9 axis\n. <\/p><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/eng\/image\/technology\/MSA500TechnicalReport3e-01.gif\" alt=\"Figure: Wavenumber spectrum F(\u03c9)\"\/><\/figure><p>That is, the symmetry means that one side of the spectrum contains all the information of the signal f(t). <br>\nIn other words, <span class=\"fontRed\">just half the information will be obtained if f(t) is a real signal<\/span>.<\/p><p><i class=\"fas fa-arrow-down fa-4x\" aria-hidden=\"true\" style=\"color:#999;margin:0 2em\"><\/i><\/p><p>Therefore, <span class=\"fontRed\">Fourier transform processes complex signal in which each of positive and negative output is valid data <\/span>.<\/p><h2 class=\"wp-block-heading\" id=\"vk-htags-be9ecffc-7e39-4e65-a415-d21c8728f79d\">Frequency conversion and generation of complex signal<\/h2><p> As a simple example of real signal, \"$f(t)\uff1dcos\u03c90t$\" is considered. <\/p><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/eng\/image\/technology\/MSA500TechnicalReport3e-02.gif\" alt=\"formula:f(t)=cos\u03c90t\"\/><\/figure><p>The <span class=\"fontRed\">analysis signal<\/span> taking out only the positive frequency components is a c\nomplex number in which the real part \n is original \"cos\" and the imaginary part is \"$sin$\".<\/p><p><i class=\"fas fa-arrow-down fa-4x\" aria-hidden=\"true\" style=\"color:#999;margin:0 2em\"><\/i><\/p><p>The analysis signal is a complex signal or orthogonal signal. <\/p><p>The figure below shows a circuit in which the real signal f(t) is c onverted into a complex signal at the same time as frequency conversion. <\/p><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/eng\/image\/technology\/MSA500TechnicalReport3e-03.gif\" alt=\"Circuit diagram:Circuit transformed to complex signal\"\/><\/figure><p>Normally, in case of multiplication of two complex signals\n\uff1b\n$$(a\uff0bjb)\u30fb(c\uff0bjd)\uff1d(ac\uff0dbd)\uff0bj(ad\uff0bbc)$$\n<\/p><p> As shown in the above equation, four multipliers of ac, bd, ad and bc are needed. However, because b is 0 if the input is a real signal, the multipliers are reduced to two of ac and ad. This is shown in above figure. <\/p><p> Meantime,$a=f(t)\u3001c=cos\u03c9t\u3001d=sin\u03c9t$. <\/p><p> According to above figure, the positive frequency and neg ative frequency components of the real signal are shifted upward. If negative frequency component is shifted to become pos itive frequency component, the output signal includes only positive frequency component. That is, it is an orthogonal signal.<\/p><p> Therefore, amplitude change and phase change can be dist inguished independently. <\/p><h2 class=\"wp-block-heading\" id=\"vk-htags-b4a3330b-44e6-4ac1-9003-bac92b0a1d5e\">IQ orthogonal display<\/h2><p>The complex signal is expressed by orthogonal coordinates of the real and imaginary parts.\n$$\n\\begin{cases}\n\n\\text{Real axis\uff1aexpressed by I. \u201cI\u201d means \u201cin-phase\u201d.}\n\\\\\n\n\\text{Imaginary axis\uff1aexpressed by Q. \u201cQ\u201d means \u201cquadrature\u201d.}\n\\end{cases}\n$$ <\/p><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/eng\/image\/technology\/MSA500TechnicalReport3e-04.gif\" alt=\"IQ orthogonal display\"\/><\/figure><h2 class=\"wp-block-heading\" id=\"vk-htags-781d6a11-035e-4e10-9589-7ac68a1adca2\">Significance of IQ conversion<\/h2><p>The IQ conversion extends or converts a real signal into a complex signal (orthogonal signal or analysis signal).<\/p><h3 class=\"wp-block-heading\" id=\"vk-htags-22ee89e1-c7dc-4a26-bef8-f0ee4e18e109\">Significance1:The bandwidth to be analyzed is doubled at the same sa mple frequency.<\/h3><p>In complex signal, since the positive and negative frequencies are valid data respectively, the bandwidth is doubled compared with real signal.<\/p><h3 class=\"wp-block-heading\" id=\"vk-htags-54d14d27-fa7c-4a40-b25e-8615212340b9\">Significance2:The center frequency can be shifted to 0 Hz without influence of an image.<\/h3><p>If LPF(low pass filter) is designed, it becomes BPF (band pass filter\n) automatically as shown figure below.<\/p><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/eng\/image\/technology\/MSA500TechnicalReport3e-05.gif\" alt=\"image:Significance2\"\/><\/figure><h3 class=\"wp-block-heading\" id=\"vk-htags-9bed69e6-b33a-4988-b2b7-2d532bdff539\">Significance3:Instantaneous phase \u03c6 (t) can be measured.<\/h3><p>$\u03c6(t)\uff1dtan^-1\u3014Q(t)\/I(t)\u3015\\text{\uff20Horizontal axis:time}$<\/p><h3 class=\"wp-block-heading\" id=\"vk-htags-33cda7e1-fbed-46ec-960f-08215d3d6141\">Significance4:Instantaneous frequency \uff46(t) can be measured.<\/h3><p>\n$$\n\\begin{align}\n\\text{Phase}\u03c6(t)&amp;=\u03c9t\n\\\\\\\\\n&amp;=2\u03c0f(t)t\n\\end{align}\n$$\nIf phase \u03c6(t) is differentiated with time,<br>\n$d\u03c6(t)\/dt=2\u03c0f(t)$ owever, it is assumed that there is little change of f (t) to the time t.<br>\n$\u2234 f(t)\uff1d(1\/2\u03c0)d\u03c6(t)\/dt$<br>\n$2\u03c0\uff1d360\u00b0$\u3001$d\u03c6(t)\uff1d\u03c6n\uff0d\u03c6n-1$\uff08\u03c6n:instantaneous phase,\u03c6n-1:previous phase\uff09\u3001dt\uff1d\uff34s\uff08sampling rate)\uff1b<br>\n$\u2234 f(t)\uff1d(\u03c6n\uff0d\u03c6n-1)\/360Ts$\uff20Horizontal axis: time<br><br>\n*Sampling rate \uff34s\uff081\/fs\uff09\n\n$$\n\\begin{align}\nfs:&amp;34MHz\\text{\uff20}20MHz~\\text{span}\n\\\\\n&amp;17MHz\\text{\uff20}10MHz~\\text{span}\n\\\\\n\u222b\n\\\\\n\\end{align}\n$$\n<\/p><h3 class=\"wp-block-heading\" id=\"vk-htags-9e41db51-73af-4e40-a54d-484e199227ea\">Significance5:Instantaneous power \uff30(t) can be measured.<\/h3><p>\n$$\nP(t)\uff1d[I(t)^2+Q(t)^2]\/50\\text{\uff20Horizontal axis: time}\n$$ <\/p><h2 class=\"wp-block-heading\" id=\"vk-htags-deb71c95-f922-4aef-a9bc-a8d9cc12a05c\">Expressing modulation and demodulation of communicat ion by IQ<\/h2><p>As mentioned in above description, if the real signal is conv erted into IQ, it became clear that a complex Fourier transform can be performed, and also that the time doma in analyses such as phase vs time, frequency vs time an d power vs time can be performed. Well, let's consider the signal modulation in communication.  The cosine wave of a carrier changes as follows in order to encode information. <\/p><style>\n.borderBox{\n  display: inline-block;\n}\n\ntable.typeIQ {\n  border-collapse: collapse;\n}\n\ntable.typeIQ td {\n  vertical-align: middle;\n  text-align: center;\n  padding: 0;\n  line-height: 120%;\n}\n<\/style><div class=\"borderBox\">\n<table cellpadding=\"0\" cellspacing=\"0\" class=\"typeIQ NoHover\">\n<tbody><tr>\n<td>odulating signal \uff1d<\/td>\n<td><u>$Ac(t)$<\/u><\/td>\n<td>\u30fb<\/td>\n<td>$cos(2\u03c0$<\/td>\n<td><u>$fc(t)$<\/u><\/td>\n<td>$t$<\/td>\n<td>$+$<\/td>\n<td><u>$\u03c6(t)$<\/u><\/td>\n<td>$)$<\/td>\n<\/tr>\n<tr>\n<td>&nbsp;<\/td>\n<td>\u2191<\/td>\n<td>&nbsp;<\/td>\n<td>&nbsp;<\/td>\n<td>\u2191<\/td>\n<td>&nbsp;<\/td>\n<td>&nbsp;<\/td>\n<td>\u2191<\/td>\n<td>&nbsp;<\/td>\n<\/tr>\n<tr>\n<td>&nbsp;<\/td>\n<td colspan=\"2\">Amplitude<br>\nmodulation<\/td>\n<td>&nbsp;<\/td>\n<td colspan=\"2\">Frewuency<br>\nmodulation<\/td>\n<td>&nbsp;<\/td>\n<td colspan=\"2\">Phase<br>\nmodulation<\/td>\n<\/tr>\n<\/tbody><\/table>\n<\/div><p>When the above equation is converted into IQ\uff1b\n$$\n\\begin{cases}\n\nI&amp;\uff1dAc(t)\u30fbcos{2\u03c0fc(t)t\uff0b\u03c6(t)}\u30fbcos\u03c9t\n\\\\\n\n &amp;\uff1dAc(t)\/2\u30fb\u3014cos{(\u03c9\uff0b\u03c9c)t\uff0b\u03c6(t)}\uff0bcos{(\u03c9\uff0d\u03c9c)t\uff0d\u03c6(t)}\u3015\n \\\\\n &amp;\\text{however,}2\u03c0fc(t)\uff1d\u03c9c\n \n\\\\\n\\\\\n\n\nQ&amp;\uff1dAc(t)\u30fbcos{2\u03c0fc(t)t\uff0b\u03c6(t)}\u30fbsin\u03c9t\n\\\\\n\n&amp;\uff1dAc(t)\/2\u30fb\u3014sin{(\u03c9\uff0b\u03c9c)t\uff0b\u03c6(t)}\uff0bsin{(\u03c9\uff0d\u03c9c)t\uff0d\u03c6(t)}\u3015\n \\\\\n&amp;\\text{however,}2\u03c0fc(t)\uff1d\u03c9c\n\\end{cases}\n$$\n<\/p><div>\n<p class=\"left\"><i class=\"fas fa-arrow-down fa-2x\" aria-hidden=\"true\" style=\"color:#999;margin:0\"><\/i><\/p>\n<p>If the frequency of higher band is cut by LPF (low pass filter) lo cated at later stage,<\/p>\n<p class=\"clear\"><\/p>\n<\/div><p>\n$$\n\\begin{cases}\n\nI\uff1dAc(t)\/2\u30fbcos\uff5b(\u03c9\uff0d\u03c9c)t\uff0d\u03c6(t)\uff5d\n\\\\\n\nQ\uff1dAc(t)\/2\u30fbsin\uff5b(\u03c9\uff0d\u03c9c)t\uff0d\u03c6(t)\uff5d\n\\end{cases}\n$$\n<\/p><p> (1)Amplitude modulated wave(AM)<br>\n$\u03c9\uff1d\u03c9c\u3001\u03c6(t)\uff1d0$\uff1b\n$$\n\\begin{cases}\nI\uff1dAc(t)\/2\n\\\\\nQ\uff1d0\n\\end{cases}\n$$\n\n$$\n\u2234 AM\\text{signal}Ac(t)\uff1d2\u00d7I\n$$\n<\/p><p> (2)Frequency  modulated wave (FM)<br>\n$Ac(t)\uff1dA$\uff08constant\uff09\u3001$\u03c9c\uff1d\u03c9\uff0d\u0394\u03c9$\uff08\u0394\u03c9:signal wave\uff09\u3001\u03c6(t)\uff1d0\uff1b\n$$\n\\begin{cases}\n\nI\uff1dA\/2\u30fbcos\u0394\u03c9\n\\\\\n\nQ\uff1dA\/2\u30fbsin\u0394\u03c9\n\\end{cases}\n$$\n\n$$\n\\begin{align}\n\ntan^-1(Q\/I)&amp;\uff1dtan^{-1}(sin\u0394\u03c9\/cos\u0394\u03c9)\n\\\\\n\n&amp;\uff1dtan^{-1}(tan\u0394\u03c9)\n\\\\\n\n&amp;\uff1d\u0394\u03c9(\uff1d2\u03c0\u0394f)\n\\end{align}\n$$\n<\/p><p>\u2234FMsignal$\u0394f\uff1d(1\/2\u03c0)\u00d7tan^{-1}\uff08Q\/I\uff09$<\/p><p> (3)Phase  modulated wave (PM)\n$Ac(t)=A$(constant)\u3001$\u03c9=\u03c9c$\uff1b\n$$\n\\begin{cases}\nI&amp;\uff1dA\/2\u30fbcos\u03c6(t)\n\\\\\nQ&amp;\uff1d-A\/2\u30fbsin\u03c6(t)\n\\end{cases}\n$$\n\n$$\n\\begin{align}\n\ntan-1(Q\/I)&amp;\uff1dtan^{-1}(-sin\u03c6(t)\/cos\u03c6(t))\n\\\\\n&amp;\uff1dtan^{-1}(-tan\u03c6(t))\n\\\\\n&amp;\uff1d-\u03c6(t)\n\\end{align}\n$$\n<\/p><p>\u2234{PM signal}$\u03c6(t)=-tan^{-1}(Q\/I)$<\/p><h2 class=\"wp-block-heading\" id=\"vk-htags-4e513bf2-0da0-4266-b591-1ebb9d3ad72a\">Products introduction<\/h2><h3 class=\"wp-block-heading\" id=\"vk-htags-7ec8c2c9-d352-4855-a15d-f080498ca92e\">Handheld signal analyzer MSA500 series <\/h3><p>With Fast Fourier Transform (FFT) and conventional sweep systems, each strong point of both systems is usable.<\/p><div class=\"vk_posts vk_posts-postType-product vk_posts-layout-card-noborder vk_postList \"><div id=\"post-5782\" class=\"vk_post vk_post-postType-product card card-noborder vk_post-col-xs-12 vk_post-col-sm-6 vk_post-col-md-3 vk_post-col-lg-3 vk_post-col-xl-3 vk_post-col-xxl-3 post-5782 product type-product status-publish has-post-thumbnail product_cat-shop-category-msa500 product_cat-shop-category-handheld-spectrum-analyzer product_tag-tag-handheld-spectrum-analyzer first instock shipping-taxable product-type-simple\"><div class=\"vk_post_imgOuter\" style=\"background-image:url(https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538_620x620.png)\"><a 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class=\"vk_post_body card-body\"><h5 class=\"vk_post_title card-title\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa538.html\">Handheld Signal Analyzer MSA538<\/a><\/h5><p class=\"vk_post_excerpt card-text\">The most popular model of the MSA500 series.<br \/>\r\nMeasurement frequency : 20kHz to 3.3GHz <\/p><\/div><!-- [ \/.card-body ] --><\/div><!-- [ \/.card ] --><div id=\"post-5785\" class=\"vk_post vk_post-postType-product card card-noborder vk_post-col-xs-12 vk_post-col-sm-6 vk_post-col-md-3 vk_post-col-lg-3 vk_post-col-xl-3 vk_post-col-xxl-3 post-5785 product type-product status-publish has-post-thumbnail product_cat-shop-category-msa500 product_cat-shop-category-handheld-spectrum-analyzer product_tag-tag-handheld-spectrum-analyzer  instock shipping-taxable product-type-simple\"><div class=\"vk_post_imgOuter\" style=\"background-image:url(https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538e_620x620.png)\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa538e.html\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538e_620x620-300x300.png\" class=\"vk_post_imgOuter_img card-img-top wp-post-image\" alt=\"\" srcset=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538e_620x620-300x300.png 300w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538e_620x620-150x150.png 150w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538e_620x620-600x600.png 600w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538e_620x620-100x100.png 100w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538e_620x620.png 620w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/div><!-- [ \/.vk_post_imgOuter ] --><div class=\"vk_post_body card-body\"><h5 class=\"vk_post_title card-title\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa538e.html\">Handheld Signal Analyzer MSA538E<\/a><\/h5><p class=\"vk_post_excerpt card-text\">This is a model in which EMI measurement function is added to MSA538.<br \/>\r\nMeasurement frequency : 20kHz to 3.3GHz <\/p><\/div><!-- [ \/.card-body ] --><\/div><!-- [ \/.card ] --><div id=\"post-5784\" class=\"vk_post vk_post-postType-product card card-noborder vk_post-col-xs-12 vk_post-col-sm-6 vk_post-col-md-3 vk_post-col-lg-3 vk_post-col-xl-3 vk_post-col-xxl-3 post-5784 product type-product status-publish has-post-thumbnail product_cat-shop-category-msa500 product_cat-shop-category-handheld-spectrum-analyzer product_tag-tag-handheld-spectrum-analyzer  instock shipping-taxable product-type-simple\"><div class=\"vk_post_imgOuter\" style=\"background-image:url(https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538tg_620x620.png)\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa538tg.html\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538tg_620x620-300x300.png\" class=\"vk_post_imgOuter_img card-img-top wp-post-image\" alt=\"\" srcset=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538tg_620x620-300x300.png 300w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538tg_620x620-150x150.png 150w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538tg_620x620-600x600.png 600w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538tg_620x620-100x100.png 100w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa538tg_620x620.png 620w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/div><!-- [ \/.vk_post_imgOuter ] --><div class=\"vk_post_body card-body\"><h5 class=\"vk_post_title card-title\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa538tg.html\">Handheld Signal Analyzer MSA538TG<\/a><\/h5><p class=\"vk_post_excerpt card-text\">Built-in TG from 5MHz to 3.3GHz<br \/>\r\nMeasurement frequency : 20kHz to 3.3GHz <\/p><\/div><!-- [ \/.card-body ] --><\/div><!-- [ \/.card ] --><div id=\"post-5783\" class=\"vk_post vk_post-postType-product card card-noborder vk_post-col-xs-12 vk_post-col-sm-6 vk_post-col-md-3 vk_post-col-lg-3 vk_post-col-xl-3 vk_post-col-xxl-3 post-5783 product type-product status-publish has-post-thumbnail product_cat-shop-category-msa500 product_cat-shop-category-handheld-spectrum-analyzer product_tag-tag-handheld-spectrum-analyzer last instock shipping-taxable product-type-simple\"><div class=\"vk_post_imgOuter\" style=\"background-image:url(https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2013\/03\/MSA558_620x620.png)\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa558.html\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2013\/03\/MSA558_620x620-300x300.png\" class=\"vk_post_imgOuter_img card-img-top wp-post-image\" alt=\"\" srcset=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2013\/03\/MSA558_620x620-300x300.png 300w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2013\/03\/MSA558_620x620-150x150.png 150w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2013\/03\/MSA558_620x620-600x600.png 600w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2013\/03\/MSA558_620x620-100x100.png 100w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2013\/03\/MSA558_620x620.png 620w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/div><!-- [ \/.vk_post_imgOuter ] --><div class=\"vk_post_body card-body\"><h5 class=\"vk_post_title card-title\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa558.html\">Handheld Signal Analyzer MSA558<\/a><\/h5><p class=\"vk_post_excerpt card-text\">Almost all of the applications of wireless communication systems are covered.<br \/>\r\nMeasurement frequency : 20kHz to 8.5GHz <\/p><\/div><!-- [ \/.card-body ] --><\/div><!-- [ \/.card ] --><div id=\"post-5786\" class=\"vk_post vk_post-postType-product card card-noborder vk_post-col-xs-12 vk_post-col-sm-6 vk_post-col-md-3 vk_post-col-lg-3 vk_post-col-xl-3 vk_post-col-xxl-3 post-5786 product type-product status-publish has-post-thumbnail product_cat-shop-category-msa500 product_cat-shop-category-handheld-spectrum-analyzer product_tag-tag-handheld-spectrum-analyzer first instock shipping-taxable product-type-simple\"><div class=\"vk_post_imgOuter\" style=\"background-image:url(https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa558e_640x640.png)\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa558e.html\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa558e_640x640-300x300.png\" class=\"vk_post_imgOuter_img card-img-top wp-post-image\" alt=\"\" srcset=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa558e_640x640-300x300.png 300w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa558e_640x640-150x150.png 150w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa558e_640x640-600x600.png 600w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa558e_640x640-100x100.png 100w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/msa558e_640x640.png 620w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/div><!-- [ \/.vk_post_imgOuter ] --><div class=\"vk_post_body card-body\"><h5 class=\"vk_post_title card-title\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa558e.html\">Handheld Signal Analyzer MSA558E<\/a><\/h5><p class=\"vk_post_excerpt card-text\">This is a model in which EMI measurement function is added to MSA558.<br \/>\r\nMeasurement frequency : 20kHz to 8.5GHz<\/p><\/div><!-- [ \/.card-body ] --><\/div><!-- [ \/.card ] --><\/div><div class=\"wp-block-vk-blocks-button vk_button vk_button-color-custom vk_button-align-block\"><a href=\"\/eng\/file-download\/technical\/pdf\/MSA500TechnicalReport3e.pdf\" style=\"background-color:#726756;border:1px solid #726756;color:#fff;\" class=\"vk_button_link btn btn-md btn-block white\" role=\"button\" aria-pressed=\"true\" target=\"_blank\"  rel=\"noopener\"><i class=\"fas vk_button_link_before fa-file-pdf\"><\/i><span class=\"vk_button_link_txt\">Download This Technical Report (PDF) <\/span><\/a><\/div><!--\u6570\u5f0f\u8868\u793a\/MathJax-->\r\n<script>\r\nMathJax = { chtml: { displayAlign: \"left\", }\r\n};\r\n<\/script>\r\n<script src=\"https:\/\/polyfill.io\/v3\/polyfill.min.js?features=es6\"><\/script>\r\n<script id=\"MathJax-script\" async src=\"https:\/\/cdn.jsdelivr.net\/npm\/mathjax@3\/es5\/tex-mml-chtml.js\"><\/script><div class=\"wp-block-cover is-light vk_block-margin-xl--margin-top\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-white-background-color has-background-dim\"><\/span><img class=\"wp-block-cover__image-background wp-image-8105\" alt=\"\" src=\"https:\/\/micronix-jp.com\/wp-content\/uploads\/2022\/11\/contact_cta_cover.png\" data-object-fit=\"cover\"\/><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\"><p class=\"has-text-align-center has-huge-font-size\"><strong>Please feel free to contact us.<\/strong><\/p>\n\n<p>If you want to verify 5G, customize a radio wave shield box, or need product repair, please do not hesitate to contact us about any small matter.<\/p>\n\n<div class=\"wp-block-vk-blocks-grid-column vk_gridColumn\"><div class=\"row\"><div class=\"wp-block-vk-blocks-grid-column-item vk_gridColumn_item col-12 col-sm-12 col-md-12 col-lg-12 col-xl-12 col-xxl-12\"><div class=\"wp-block-vk-blocks-button vk_button vk_button-color-custom vk_button-align-block is-style-shine\"><a href=\"https:\/\/micronix-jp.com\/english\/contact\/\" class=\"vk_button_link btn has-background has-luminous-vivid-orange-background-color btn-lg btn-block\" role=\"button\" aria-pressed=\"true\" target=\"_blank\" rel=\"noopener\"><div class=\"vk_button_link_caption\"><i class=\"far fa-envelope vk_button_link_before\" aria-hidden=\"true\"><\/i><span class=\"vk_button_link_txt\"><strong>Contact Form<\/strong><\/span><\/div><\/a><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>About IQ dataAt Signal analyzer\/spectrum analyzer MSA500 series, after the input signal is converted into IQ signals, the digital signal processing is performed and the result is displayed on the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8270,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"vkexunit_cta_each_option":"","footnotes":""},"categories":[32],"tags":[86],"class_list":["post-1888","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-category-technology","tag-technology-spectrum-analyzer"],"_links":{"self":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts\/1888","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/comments?post=1888"}],"version-history":[{"count":3,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts\/1888\/revisions"}],"predecessor-version":[{"id":10340,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts\/1888\/revisions\/10340"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/media\/8270"}],"wp:attachment":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/media?parent=1888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/categories?post=1888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/tags?post=1888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}