{"id":10428,"date":"2023-07-27T15:58:52","date_gmt":"2023-07-27T14:58:52","guid":{"rendered":"https:\/\/teleplanforsberg.com\/?p=10428"},"modified":"2023-07-27T16:26:42","modified_gmt":"2023-07-27T15:26:42","slug":"unit-dbm","status":"publish","type":"post","link":"https:\/\/teleplanforsberg.com\/index.php\/2023\/07\/27\/unit-dbm\/","title":{"rendered":"Unit dBm"},"content":{"rendered":"\n<p>dBm is a unit of power. The abbreviation dBm means power ratio in decibel (dB) with reference to the power 1 milliwatt (mW).<\/p>\n\n\n\n<p>Decibel (dB) is a dimensionless unit which quantifies the ratio or difference between two values. In other words, the increase or decrease in a signal. In the case of dBm, one value is our measured power and the other is 1 mW.<\/p>\n\n\n\n<p>Decibels are useful when working with signals as signal strengths vary logarithmically, not linearly. The dB scale is logarithmic which means it produces simple numbers for large-scale variations in signals.<\/p>\n\n\n\n<p>Doubling (or halving) the power level adds (or subtracts) 3 dB to the power level which corresponds to a 50% gain or reduction (Young, n.d.).<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Power in dBm<\/strong><\/td><td><strong>Power mW<\/strong><\/td><\/tr><tr><td>-30 dBm<\/td><td>0.001 mW<\/td><\/tr><tr><td>-50 dBm<\/td><td>0.00001<\/td><\/tr><tr><td>-70 dBm<\/td><td>0.0000001<\/td><\/tr><tr><td>-90 dBm<\/td><td>0.000000001<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>The formula to convert from power x in dBm to power P mW is <\/p>\n\n\n\n<h5 class=\"wp-block-heading\">P = 1mW * 10^(x\/10)<\/h5>\n\n\n\n<p>Reference: <em>Young, M. (n.d.). Understanding Decibels and Their Use in Radio Systems. [online] YDI wireless. [Accessed 28 Jun. 2023].<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>dBm is a unit of power. The abbreviation dBm means power ratio in decibel (dB) with reference to the power 1 milliwatt (mW).<\/p>\n","protected":false},"author":5,"featured_media":10455,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[48],"tags":[],"class_list":["post-10428","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-resources"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Unit dBm - Teleplan Forsberg Ltd.<\/title>\n<meta name=\"description\" content=\"dBm is a unit of power. 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