{"id":1916,"date":"2014-10-03T13:39:15","date_gmt":"2014-10-03T04:39:15","guid":{"rendered":"https:\/\/micronix-jp.com\/?p=1916"},"modified":"2023-03-20T17:08:27","modified_gmt":"2023-03-20T08:08:27","slug":"ant_effect_eng","status":"publish","type":"post","link":"https:\/\/micronix-jp.com\/english\/tech\/technology\/ant_effect_eng.html","title":{"rendered":"Antenna Location Effect on Mobile Field Intensity Measurement"},"content":{"rendered":"<p>On the field intensity measurement in the car using the signal analyzer MSA538 or the application software MAS9501, the location of the antenna can effect to the result.<\/p>\n<p>We investigated to find the best antenna location to make the measurement in the car.<\/p>\n\n<h2>AM\/FM radio wave measurement<\/h2>\n<p>We used the system below to make the field intensity measurement in the car. The antenna location is  changed to find the best place.<\/p>\n\n<img loading=\"lazy\" decoding=\"async\" src=\"\/eng\/image\/technology\/ant_effect_eng-00.png\" alt=\"Loop Antenna, Biconical Antenna, Pre-Amp, Signal Analizer\" width=\"730\" height=\"324\" style=\"margin-bottom:2em\">\n\n<p>The frequency related parameters and the information of the radio station are shown in below.<\/p>\n<ul>\n <li>AM Measurement Center Frequency:594kHz<\/li>\n <li>AM Measurement Span:50kHz<\/li>\n <li>AM Radio Station:NHK 1st Station (Kuki-city in Saitama)<\/li>\n <li>F M Measurement Center Frequency:79.5MHz<\/li>\n <li>FM Measurement Span:10MHz<\/li>\n <li>FM Radio Station:NACK5 (Hiki - county in Saitama)<\/li>\n<\/ul>\n\n<h2>Antenna Location and the Waveform (AM)<\/h2>\n<img loading=\"lazy\" decoding=\"async\" src=\"\/eng\/image\/technology\/ant_effect_eng-01.png\" alt=\"Antenna Location and the Waveform (AM)\" width=\"680\" height=\"1131\">\n\n<h2>Antenna Location and the Waveform (FM)<\/h2>\n<img loading=\"lazy\" decoding=\"async\" src=\"\/eng\/image\/technology\/ant_effect_eng-02.png\" alt=\"Antenna Location and the Waveform (FM)\" width=\"680\" height=\"1131\">\n\n<h2>Conclusion<\/h2>\n<p>The test results are concluded as follows.<\/p>\n<table>\n  <tbody><tr>\n  <th>AntennaLocation<\/th>\n  <th>AM FieldIntensity<\/th>\n  <th>FM FieldIntensity<\/th>\n  <\/tr>\n  <tr>\n  <td>Luggage Space Window<br>\n(Photo1A, 1F)<\/td>\n  <td>46.8dB\u03bcV\/m <br>\n    (Fig.1A)<\/td>\n  <td>54.9dB\u03bcV\/m\uff08Fig.1F\uff09<\/td>\n  <\/tr>\n  <tr>\n  <td>Luggage Space\uff08Photo2A,2F\uff09<\/td>\n  <td>37.5dB\u03bcV\/m\uff08Fig.2A\uff09<\/td>\n  <td>49.0dB\u03bcV\/m\uff08Fig.2F\uff09<\/td>\n  <\/tr>\n  <tr>\n  <td>Rear Seat\uff08Photo3A,3F\uff09<\/td>\n  <td>52.4dB\u03bcV\/m\uff08Fig.3A\uff09<\/td>\n  <td>56.3dB\u03bcV\/m\uff08Fig.3F\uff09<\/td>\n  <\/tr>\n  <tr>\n  <td>Front Seat\uff08Photo4A,4F\uff09<\/td>\n  <td>56.5dB\u03bcV\/m\uff08Fig.4A\uff09<\/td>\n  <td>52.7dB\u03bcV\/m\uff08Fig.4F\uff09<\/td>\n  <\/tr>\n  <tr>\n  <td>Out of the car\uff08Photo5A,5F\uff09<\/td>\n  <td>67.5dB\u03bcV\/m\uff08Fig.5A\uff09<\/td>\n  <td>71.5dB\u03bcV\/m\uff08Fig.6F\uff09<\/td>\n  <\/tr>\n<\/tbody><\/table>\n\n<p style=\"margin-top:1em\">For the case of AM, the best place is the front seat. On the other hand, the best place for FM is the luggage space window with the consideration of the noise floor. Comparing the out of the car, AM degraded around 11dB and FM degraded around 15 dB or more. <\/p>\n<p style=\"margin-top:1em\">For the case of AM, the best place is the front seat. On the other hand, the best place for FM is the luggage space window with the consideration of the noise floor. Comparing the out of the car, AM degraded around 11dB and FM degraded around 15 dB or more. <\/p>\n<p>It is recommended to apply the software correction when the measurement should be calibrated for the value at outside of the car.<\/p>\n\n<h2>Appendix\u2013AM loop antenna is located on the dashboard in flat<\/h2>\n\n<p>The additional experiment was performed with AM antenna is located on the dashboard in flat as shown in Photo 6A.<\/p>\n<p>On this case measured field intensity is as strong as the one when the antenna is located out of the car. Since the loop antenna responds to the strength of the magnetic field, the iron components around the antenna should be minimum for the best location.<\/p>\n\n<img loading=\"lazy\" decoding=\"async\" src=\"\/eng\/image\/technology\/ant_effect_eng-03.png\" alt=\"AM loop antenna is located on the dashboard in flat\" width=\"680\" height=\"225\">\n\n\n\n<section>\n<h2>Products introduction<\/h2>\n<div class=\"woocommerce columns-3 \"><ul class=\"products columns-3\">\n<li class=\"product type-product post-5801 status-publish first instock product_cat-shop-category-handheld-spectrum-analyzer product_cat-shop-category-spectrum-analyzer-option product_cat-shop-category-test-accessories product_tag-tag-antenna product_tag-tag-handheld-spectrum-analyzer product_tag-tag-handheld-spectrum-analyzer-option product_tag-tag-test-accessories has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/micronix-jp.com\/english\/products\/test-accessories\/man120.html\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-300x300.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\" srcset=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-300x300.png 300w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-150x150.png 150w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-600x600.png 600w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-100x100.png 100w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620.png 620w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><h2 class=\"woocommerce-loop-product__title\">Loop Antenna MAN120<\/h2>\n<\/a><\/li>\n<li class=\"product type-product post-5802 status-publish instock product_cat-shop-category-emc-test-system product_cat-shop-category-handheld-spectrum-analyzer product_cat-shop-category-spectrum-analyzer-option product_tag-tag-handheld-spectrum-analyzer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/micronix-jp.com\/english\/products\/emc\/related-products\/map301.html\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/map301_620x620-300x300.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\" srcset=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/map301_620x620-300x300.png 300w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/map301_620x620-150x150.png 150w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/map301_620x620-600x600.png 600w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/map301_620x620-100x100.png 100w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/map301_620x620.png 620w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><h2 class=\"woocommerce-loop-product__title\">Low Noise Amplifier MAP301\/302<\/h2>\n<\/a><\/li>\n<li class=\"product type-product post-5785 status-publish last instock product_cat-shop-category-msa500 product_cat-shop-category-handheld-spectrum-analyzer product_tag-tag-handheld-spectrum-analyzer has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa500\/msa538e.html\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><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=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" 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\" \/><h2 class=\"woocommerce-loop-product__title\">Handheld Signal Analyzer MSA538E<\/h2>\n<\/a><\/li>\n<li class=\"product type-product post-5936 status-publish first instock product_cat-shop-category-shield-box product_cat-shop-category-shield-box-option product_cat-shop-category-spectrum-analyzer-option product_cat-shop-category-test-accessories product_tag-tag-antenna product_tag-tag-electromagnetic-anechoic-box-shield-box has-post-thumbnail shipping-taxable product-type-simple\">\n\t<a href=\"https:\/\/micronix-jp.com\/english\/products\/test-accessories\/man150.html\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/MAN150_620x620-300x300.png\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"\" srcset=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/MAN150_620x620-300x300.png 300w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/MAN150_620x620-150x150.png 150w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/MAN150_620x620-600x600.png 600w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/MAN150_620x620-100x100.png 100w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/MAN150_620x620.png 620w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><h2 class=\"woocommerce-loop-product__title\">Biconical Antenna MAN150\/MAN150B<\/h2>\n<\/a><\/li>\n<\/ul>\n<\/div>\n\n<\/section><div class=\"wp-block-vk-blocks-button vk_button vk_button-color-custom vk_button-align-block\"><a href=\"\/eng\/file-download\/technical\/pdf\/ant_effect_eng.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><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>On the field intensity measurement in the car using the signal analyzer MSA538 or the application software MAS9501, the location of the antenna can effect to the result. We investigated [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8279,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"vkexunit_cta_each_option":"","footnotes":""},"categories":[32],"tags":[81,87],"class_list":["post-1916","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-category-technology","tag-technology-measuring-system","tag-technology-test-accessories"],"_links":{"self":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts\/1916","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=1916"}],"version-history":[{"count":1,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts\/1916\/revisions"}],"predecessor-version":[{"id":6970,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts\/1916\/revisions\/6970"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/media\/8279"}],"wp:attachment":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/media?parent=1916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/categories?post=1916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/tags?post=1916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}