{"id":760,"date":"2021-09-21T11:00:57","date_gmt":"2021-09-21T11:00:57","guid":{"rendered":"https:\/\/www.practicallynetworked.com\/?page_id=760"},"modified":"2021-10-05T16:59:25","modified_gmt":"2021-10-05T16:59:25","slug":"router-hissing","status":"publish","type":"post","link":"https:\/\/www.practicallynetworked.com\/router-hissing\/","title":{"rendered":"Why Does My Router Hiss At Me?"},"content":{"rendered":"<p align=\"left\">[Thanks to NETGEAR for this explanation!]<\/p>\n<p align=\"left\">If you can hear a faint hissing or buzzing sound from your router, wireless Access Point or other piece of networking gear, there&#8217;s no cause for alarm!\u00a0 The noise is from a coil in the DC-to-DC converter in the product&#8217;s power supply.<\/p>\n<p align=\"left\">In the past, these circuits were designed to run at a fixed frequency outside the audio range (like 40 to 100 kHz) so that you wouldn&#8217;t hear them.\u00a0 But newer (and cheaper) designs let them free run, i.e, change oscillation frequency, occasionally generating noise that you can hear.<\/p>\n<p align=\"left\">Apparently, users&#8217; ears are sharper than the producers of networking gear thought!\u00a0 So they&#8217;re working on a way to make sure the power supply switching frequency stays up in the non-audible range for future designs.\u00a0 At any rate, it&#8217;s nothing to be concerned about in terms of product reliability or safety.<\/p>\n","protected":false},"excerpt":{"rendered":"<p> If you can hear a faint hissing or buzzing sound from your router, wireless Access Point or other piece of networking gear, there&#8217;s no cause for alarm!\u00a0 The noise is from a coil in the DC-to-DC converter in the product&#8217;s power supply. In the past, these circuits were designed to run at a fixed frequency outside the audio range (like 40 to 100 kHz) so that you wouldn&#8217;t hear them.\u00a0 But newer (and cheaper) designs let them free run, i.e, change oscillation frequency, occasionally generating noise that you can hear. Apparently, users&#8217; ears are <\/p>\n","protected":false},"author":2,"featured_media":5596,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"_links":{"self":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts\/760"}],"collection":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/comments?post=760"}],"version-history":[{"count":0,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/posts\/760\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/media\/5596"}],"wp:attachment":[{"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/media?parent=760"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/categories?post=760"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.practicallynetworked.com\/wp-json\/wp\/v2\/tags?post=760"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}