{"id":23346,"date":"2023-02-17T10:33:53","date_gmt":"2023-02-17T10:33:53","guid":{"rendered":"https:\/\/www.gear4music.com\/blog\/?p=23346"},"modified":"2023-02-17T10:37:00","modified_gmt":"2023-02-17T10:37:00","slug":"how-do-wireless-microphone-systems-work","status":"publish","type":"post","link":"https:\/\/www.gear4music.com\/blog\/how-do-wireless-microphone-systems-work\/","title":{"rendered":"How Do Wireless Microphone Systems Work?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gear4music.com\/blog\/how-do-wireless-microphone-systems-work\/#In_a_nutshell_how_do_wireless_systems_work\" >In a nutshell, how do wireless systems work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gear4music.com\/blog\/how-do-wireless-microphone-systems-work\/#How_do_analogue_transmitters_work\" >How do analogue transmitters work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gear4music.com\/blog\/how-do-wireless-microphone-systems-work\/#What_is_frequency_coordination\" >What is frequency coordination?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gear4music.com\/blog\/how-do-wireless-microphone-systems-work\/#How_does_digital_compare\" >How does digital compare?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.gear4music.com\/blog\/how-do-wireless-microphone-systems-work\/#Wireless_licensing\" >Wireless licensing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.gear4music.com\/blog\/how-do-wireless-microphone-systems-work\/#Top_tips\" >Top tips<\/a><\/li><\/ul><\/nav><\/div>\n<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.16&#8243; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.16&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text admin_label=&#8221;Intro&#8221; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>If you&#8217;re planning on taking your live show to the next level, you might want to invest in a <strong><a href=\"https:\/\/www.gear4music.com\/PA_Equipment\/Wireless_Systems\/mics\" target=\"_blank\" rel=\"noopener\">wireless microphone system<\/a><\/strong>.<\/p>\n<p>Performers can often feel restricted when using wired microphones. Wireless mics offer the freedom they need to perform how they want.<\/p>\n<p>But how do wireless microphone systems work? And how will knowing how they work help you pick the right system for you?<\/p>\n<p>[\/et_pb_text][et_pb_text admin_label=&#8221;In a nutshell, how do wireless systems work?&#8221; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"In_a_nutshell_how_do_wireless_systems_work\"><\/span>In a nutshell, how do wireless systems work?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Wireless microphone systems are great for upgrading your stage show. But to the novice, they might seem a bit daunting.<\/p>\n<p>UHF what? Transmitter and receivers? Mega hertz? What&#8217;s all that about?<\/p>\n<p>Let&#8217;s take a step back for a second &#8211; it&#8217;s really not that complicated when you strip it back to a basic level.<\/p>\n<p>A wireless microphone system consists of a\u00a0<strong>transmitter<\/strong> and a\u00a0<strong>receiver<\/strong>.<\/p>\n<p>The transmitter receives an audio signal and then processes it through air with ultra-high frequency modulation.<\/p>\n<p>The receiver then listens for this modulated signal and demodulates it. This gives you the original audio signal, which can then be played back in real-time.<\/p>\n<p>Simple right? Let&#8217;s dive a little deeper.<\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Cj3PP3fx-s8\" width=\"600\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><\/iframe><\/p>\n<p>[\/et_pb_text][et_pb_text admin_label=&#8221;How do analogue transmitters work?&#8221; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_do_analogue_transmitters_work\"><\/span>How do analogue transmitters work?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-23600 alignright\" src=\"https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-300x300.jpg\" alt=\"Shure Handheld Wireless Mic System\" width=\"300\" height=\"300\" srcset=\"https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-300x300.jpg 300w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-1024x1024.jpg 1024w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-600x600.jpg 600w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-768x768.jpg 768w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-1080x1080.jpg 1080w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-1280x1280.jpg 1280w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-980x980.jpg 980w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-480x480.jpg 480w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System.jpg 1500w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>I&#8217;ve mentioned that transmitters use modulation to send an audio signal over air &#8211; but what does this mean?<\/p>\n<p>Analogue transmitters use ultra-high frequencies (UHF) to transmit audio signals wirelessly to receivers. Since the UHF spectrum is so high, we can&#8217;t perceive it, making it great for sending wireless signals.<\/p>\n<p>In the UHF range, there&#8217;s a low level of frequency chatter called the noise floor, which comes from devices like televisions. The transmitter generates a powerful centre frequency at a specified megahertz level that punches above this noise floor.<\/p>\n<p>An incoming audio signal is taken by the transmitter and used to modulate this centre frequency &#8211; put more simply, it moves the signal left and right really quickly. This creates an image of the audio signal that can then be sent over air.<\/p>\n<p>The receiver listens for the specified centre frequency, then demodulates it, ending up with the original audio signal that was transmitted.<\/p>\n<p>Because of the way frequency transmission works, you need different centre frequencies to transmit different audio signals. And this needs to be organised carefully to avoid interference between them.<\/p>\n<p>[\/et_pb_text][et_pb_text admin_label=&#8221;What is frequency coordination?&#8221; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_frequency_coordination\"><\/span>What is frequency coordination?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-23603 alignright\" src=\"https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-300x300.jpg\" alt=\"Channels and groups on the Shure BLX24 B58-K3E Handheld Wireless Microphone System\" width=\"300\" height=\"300\" srcset=\"https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-300x300.jpg 300w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-1024x1024.jpg 1024w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-600x600.jpg 600w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-768x768.jpg 768w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-1080x1080.jpg 1080w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-1280x1280.jpg 1280w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-980x980.jpg 980w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-480x480.jpg 480w, https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System.jpg 1500w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Coordinating wireless frequencies? That sounds like a nightmare!<\/p>\n<p>Luckily manufacturers of wireless microphone systems have made it easy to achieve this without you having to think too much.<\/p>\n<p>Most wireless systems offer a number of selectable <strong>groups\u00a0<\/strong>and each of these has a number of <strong>channels<\/strong>.<\/p>\n<p>The frequency of each channel within a group is precalculated by the manufacturer to avoid interference as much as possible.<\/p>\n<p>If you&#8217;re using multiple wireless transmitters, always make sure they&#8217;re within the same group. A common mistake from beginners is to use different groups.<\/p>\n<p>The more advanced a system, the more groups and channels it will give you. This is worth looking into, depending on the size of your venue.<\/p>\n<p>For more advanced frequency coordination, many manufacturers allow you to manually adjust the transmission frequency either via the system or software.<\/p>\n<p>This is useful if you have a much bigger and more complicated system.<\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/OV4HaH_5TwA\" width=\"600\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><\/iframe><\/p>\n<p>[\/et_pb_text][et_pb_text admin_label=&#8221;How does digital compare?&#8221; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_does_digital_compare\"><\/span>How does digital compare?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A lot of systems now use digital transmission.<\/p>\n<p>This generally provides better audio quality than analogue systems because the signal has to be compressed less. They might be more expensive, however, but they can be worth it.<\/p>\n<p>And because it uses a front-end signal, intermodulation is much less of a problem. You can have multiple systems running with less worry about interference in this case.<\/p>\n<p>You&#8217;ll also get much better-quality audio. So if you want nearly-perfect audio, you should go for a digital system.<\/p>\n<p>But analogue systems still have their advantages. They&#8217;re less likely to have latency issues and have the capability to be much more expandable.<\/p>\n<p>So really it&#8217;s up to you to decide what type of system is right for you. It&#8217;s worth taking a deep dive into the different specifications provided.<\/p>\n<p>[\/et_pb_text][et_pb_text admin_label=&#8221;Wireless licensing&#8221; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Wireless_licensing\"><\/span>Wireless licensing<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Wireless licencing is a big subject. But luckily, it&#8217;s not that complicated to understand.<\/p>\n<p>In the UK, there are a number of different frequency bands you&#8217;re allowed to operate in &#8211; designated as channels.<\/p>\n<p>The one specifically made for wireless microphones is Channel 38 but you can also choose to operate in a range of other different channels. However, you&#8217;ll have to buy licenses for these. So before you get a system, check it&#8217;s in an acceptable bandwidth.<\/p>\n<p>If you don&#8217;t want to have any licensing to deal with, you could use digital 2.4gHz systems. These avoid any licensing headaches but you might not have as much expandability\/reliability as the other frequency bandwidths. For example, you can buy a license for a specific channel, stopping other people from using it. You can&#8217;t do that with a WiFi transmitter.<\/p>\n<p>This differs across countries. So if you&#8217;re touring, make sure to check the system you&#8217;re buying will be acceptable. Our wireless system product pages have wireless maps, and these clearly show what&#8217;s acceptable in which country.<\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/2PfxgGyLxnY\" width=\"600\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" data-mce-fragment=\"1\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\"><\/span><\/iframe><\/p>\n<p>[\/et_pb_text][et_pb_text admin_label=&#8221;Top tips&#8221; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;20px||||false|false&#8221; border_width_top=&#8221;2px&#8221; border_color_top=&#8221;gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f&#8221; global_colors_info=&#8221;{%22gcid-45928375-1fd3-4d7e-b1f0-0adee316b54f%22:%91%22border_color_top%22%93}&#8221;]<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Top_tips\"><\/span>Top tips<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When it comes to wireless mic systems, the best thing to do is to invest in a good system as you&#8217;re guaranteed a much better sound. Simple!<\/p>\n<p>It&#8217;s also worth getting a reliable set of antennae &#8211; the basic ones that come with your system might not do the job. If you&#8217;re in a bigger venue, it&#8217;s worth looking into omnidirectional antennae or powerful directional antennae.<\/p>\n<p>In addition, you should make sure to get the right number of groups and channels that you need for your particular system. I&#8217;d say this is the most important thing to consider when deciding between a cheaper and more expensive system.<\/p>\n<p>And finally &#8211; don&#8217;t overthink it! Wireless systems are easy to operate. And the more premium systems are specially designed so you can get going, straight out of the box.<\/p>\n<p>Want to find out more about wireless systems?<\/p>\n<ul>\n<li>Check out the <strong><a href=\"https:\/\/www.gear4music.com\/blog\/sennheiser-wireless\/\">differences between all of the Sennheiser wireless systems<\/a><\/strong><\/li>\n<li>Read our ultimate<strong><a href=\"https:\/\/www.gear4music.com\/blog\/the-ultimate-guide-to-shure-wireless-systems\/\"> Guide to Shure Wireless Systems<\/a><\/strong><\/li>\n<li>Have a look at the <strong><a href=\"https:\/\/www.gear4music.com\/blog\/the-best-wireless-microphone-systems-for-singers\/\">Best Wireless Microphone Systems for singers<\/a><\/strong><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_2,1_2&#8243; _builder_version=&#8221;4.17.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.17.4&#8243; 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But, to the novice, they might seem a bit daunting. UHF what? Transmitter and receivers? Mega hertz? What&#8217;s all that about? Let&#8217;s take a step back for a second &#8211; it&#8217;s really not that complicated when you strip it back to a basic level.<\/p>\n","protected":false},"author":12,"featured_media":23598,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"<p>If you're planning on taking your live show to the next level, you might want to invest in a <strong><a href=\"https:\/\/www.gear4music.com\/PA_Equipment\/Wireless_Systems\/mics\" target=\"_blank\" rel=\"noopener\">wireless microphone system<\/a><\/strong>.<\/p><p>Performers might often feel restricted when using wired microphones. Wireless mics give them the freedom they need to perform how they want.<\/p><p>But how do wireless microphone systems work? And how will knowing how they work help you pick the right system for you?<\/p><hr \/><h3>In a nutshell, how do wireless systems work?<\/h3><p>Wireless microphone systems are great for upgrading your stage show. But, to the novice, they might seem a bit daunting.<\/p><p>UHF what? Transmitter and receivers? Mega hertz? What's all that about?<\/p><p>Let's take a step back for a second - it's really not that complicated when you strip it back to a basic level.<\/p><p>A wireless microphone system consists of a\u00a0<strong>transmitter<\/strong> and a\u00a0<strong>receiver<\/strong>.<\/p><p>The transmitter receives an audio signal and then processes it through air with ultra-high frequency modulation.<\/p><p>The receiver then listens for this modulated signal and demodulates it. This gives you the original audio signal, which can then be played back in real-time.<\/p><p>Simple right? Let's dive a little deeper.<\/p><p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Cj3PP3fx-s8\" width=\"600\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p><hr \/><h3>How do analogue transmitters work?<\/h3><p><img class=\"size-medium wp-image-23600 alignright\" src=\"https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Shure-Handheld-Wireless-Mic-System-300x300.jpg\" alt=\"Shure Handheld Wireless Mic System\" width=\"300\" height=\"300\" \/>I've mentioned that transmitters use modulation to send an audio signal over air - but what does this mean?<\/p><p>Analogue transmitters use ultra-high frequencies (UHF) to transmit audio signals wirelessly to receivers. Since the UHF spectrum is so high, we can't perceive it, making it great for sending wireless signals.<\/p><p>In the UHF range, there's a low level of frequency chatter called the noise floor, which comes from devices like televisions. The transmitter generates a powerful centre frequency at a specified megahertz level that punches above this noise floor.<\/p><p>An incoming audio signal is taken by the transmitter and used to modulate this centre frequency - put more simply, it moves the signal left and right really quickly. This creates an image of the audio signal that can then be sent over air.<\/p><p>The receiver listens for the specified centre frequency, then demodulates it, ending up with the original audio signal that was transmitted.<\/p><p>Because of the way frequency transmission works, you need different centre frequencies to transmit different audio signals. And this needs to be organised carefully to avoid interference between them.<\/p><hr \/><h3>What is frequency coordination?<\/h3><p><img class=\"size-medium wp-image-23603 alignright\" src=\"https:\/\/storage.googleapis.com\/stateless-blog-g4m-co-uk\/2023\/02\/Channels-and-groups-on-the-Shure-BLX24-B58-K3E-Handheld-Wireless-Microphone-System-300x300.jpg\" alt=\"Channels and groups on the Shure BLX24 B58-K3E Handheld Wireless Microphone System\" width=\"300\" height=\"300\" \/>Coordinating wireless frequencies? That sounds like a nightmare!<\/p><p>Luckily manufacturers of wireless microphone systems have made it easy to achieve this without you having to think too much.<\/p><p>Most wireless systems offer a number of selectable <strong>groups\u00a0<\/strong>and each of these has a number of <strong>channels<\/strong>.<\/p><p>The frequency of each channel within a group is precalculated by the manufacturer to avoid interference as much as possible.<\/p><p>If you're using multiple wireless transmitters, always make sure they're within the same group. A common mistake from beginners is to use different groups.<\/p><p>The more advanced a system, the more groups and channels it will give you. This is worth looking into, depending on the size of your venue.<\/p><p>For more advanced frequency coordination, many manufacturers allow you to manually adjust the transmission frequency either via the system or software.<\/p><p>This is useful if you have a much bigger and more complicated system.<\/p><p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/OV4HaH_5TwA\" width=\"600\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p><hr \/><h3>How does digital compare?<\/h3><p>A lot of systems now use digital transmission.<\/p><p>This generally provides better audio quality than analogue systems because the signal has to be compressed less. They might be more expensive, however, but they can be worth it.<\/p><p>And because it uses a front-end signal, intermodulation is much less of a problem. You can have multiple systems running with less worry about interference in this case.<\/p><p>You'll also get much better-quality audio. So if you want nearly-perfect audio, you should go for a digital system.<\/p><p>But analogue systems still have their advantages. They're less likely to have latency issues and have the capability to be much more expandable.<\/p><p>So really it's up to you to decide what type of system is right for you. It's worth taking a deep dive into the different specifications provided.<\/p><hr \/><h3>Wireless licensing<\/h3><p>Wireless licencing is a big subject. But not that complicated to understand, luckily.<\/p><p>In the UK, there are a number of different frequency bands you're allowed to operate in - designated as channels. The one specifically made for wireless microphones is Channel 38 but you can also choose to operate in a range of other different channels too. However, you will have to buy licenses for these before using them. So before you get a system, check it's in an acceptable bandwidth.<\/p><p>If you don't want to have any licensing to deal with, you could use digital 2.4gHz systems. These avoid any licensing headaches but you might not have as much expandability\/reliability as the other frequency bandwidths. For example, you can buy a license for a specific channel, stopping other people from using it, You can't do that with a WiFi transmitter.<\/p><p>This differs across countries. So if you're touring, make sure to check the system you're buying will be acceptable. Our wireless system product pages have wireless maps, and these clearly show what's acceptable in which country.<\/p><p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/2PfxgGyLxnY\" width=\"600\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p><hr \/><h3>Top tips<\/h3><p>When it comes to wireless mic systems, the best thing to do is to invest in a good system as you're guaranteed a much better sound. Simple!<\/p><p>It's also worth getting a reliable set of antennae - the basic ones that come with your system might not do the job. If you're in a bigger venue, it's worth looking into omnidirectional antennae or powerful directional antennae.<\/p><p>In addition, you should make sure to get the right number of groups and channels that you need for your particular system. I'd say this is the most important thing to consider when deciding between a cheaper and more expensive system.<\/p><p>And finally - don't overthink it! Wireless systems are easy to operate. And the more premium systems are specially designed so you can get going, straight out of the box.<\/p><p>Want to find out more about wireless systems?<\/p><ul><li>Check out the <strong><a href=\"https:\/\/www.gear4music.com\/blog\/sennheiser-wireless\/\">differences between all of the Sennheiser wireless systems<\/a><\/strong><\/li><li>Read our ultimate<strong><a href=\"https:\/\/www.gear4music.com\/blog\/the-ultimate-guide-to-shure-wireless-systems\/\"> Guide to Shure Wireless Systems<\/a><\/strong><\/li><li>Have a look at the <strong><a href=\"https:\/\/www.gear4music.com\/blog\/the-best-wireless-microphone-systems-for-singers\/\">Best Wireless Microphone Systems for singers<\/a><\/strong><\/li><\/ul><p>\u00a0<\/p>","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[250,111],"tags":[478,169,161,519,597],"class_list":["post-23346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-live-sound-learn","category-live-sound","tag-learn","tag-live-sound","tag-shure","tag-wireless-microphone-systems","tag-wireless-systems"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Do Wireless Microphone Systems Work?<\/title>\n<meta name=\"description\" content=\"If you&#039;re planning on taking your live show to the next level, you might want a wireless microphone system. 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