{"id":41216,"date":"2021-03-05T17:58:07","date_gmt":"2021-03-05T16:58:07","guid":{"rendered":"https:\/\/axing.com\/service\/tables\/def\/"},"modified":"2021-03-09T14:15:06","modified_gmt":"2021-03-09T13:15:06","slug":"def","status":"publish","type":"page","link":"https:\/\/axing.com\/en\/service\/compendium\/def\/","title":{"rendered":"DEF"},"content":{"rendered":"

Definitions:<\/h3>\n\n\n\n\n\n\n
Level and power measures<\/td>\n<\/td>\n<\/tr>\n
dB\u00b5V<\/td>\nVoltage level in relation to 1 \u00b5V
\n(Interpretation:
\n\u201cby how many dB is a voltage higher than 1 \u00b5V\u201d)<\/td>\n<\/tr>\n
dBmV<\/td>\nVoltage level in relation to 1 mV
\n(Interpretation:
\n\u201cby how many dB is a voltage higher than 1 mV\u201d)<\/td>\n<\/tr>\n
dBm<\/td>\nPower level in relation to 1 mW
\n(Interpretation:
\n\u201cby how many dB is a power higher than 1 mW\u201d)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n
Converting formulas<\/td>\n<\/tr>\n
dB\u00b5V = dBmV + 60 dB<\/td>\n<\/tr>\n
dBmV = dB\u00b5V – 60 dB<\/td>\n<\/tr>\n
dB\u00b5V = dBm + 108.75 dB (with Z = 75 \u2126)<\/td>\n<\/tr>\n
dB\u00b5V = dBm + 107.00 dB (with Z = 50 \u2126)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n
Frequency bands<\/td>\n<\/td>\n<\/tr>\n
HF: High Frequency<\/td>\n3 MHz \u2026 30 MHz<\/td>\n<\/tr>\n
VHF: Very High Frequency<\/td>\n30 MHz \u2026 300 MHz<\/td>\n<\/tr>\n
UHF Ultra High Frequency<\/td>\n300 MHz \u2026 3 GHz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n
Level relations in a broadband cable network<\/td>\n<\/td>\n<\/tr>\n
System level (traditionally)<\/td>\nPAL image carrier level<\/td>\n<\/tr>\n
DVB-C \/ DOCSIS <= 3.0 @ 64 QAM<\/td>\nPAL – 10 dB<\/td>\n<\/tr>\n
DVB-C \/ DOCSIS <= 3.0 @ 256 QAM<\/td>\nPAL – 4 dB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Definitions: Level and power measures dB\u00b5V Voltage level in relation to 1 \u00b5V (Interpretation: \u201cby how many dB is a voltage higher than 1 \u00b5V\u201d) dBmV Voltage level in relation to 1 mV (Interpretation: \u201cby how many dB is a voltage higher than 1 mV\u201d) dBm Power level in relation to 1 mW (Interpretation: \u201cby […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":41131,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-41216","page","type-page","status-publish","hentry"],"yoast_head":"\nDEF - AXING AG<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/axing.com\/en\/service\/compendium\/def\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"DEF - AXING AG\" \/>\n<meta property=\"og:description\" content=\"Definitions: Level and power measures dB\u00b5V Voltage level in relation to 1 \u00b5V (Interpretation: \u201cby how many dB is a voltage higher than 1 \u00b5V\u201d) dBmV Voltage level in relation to 1 mV (Interpretation: \u201cby how many dB is a voltage higher than 1 mV\u201d) dBm Power level in relation to 1 mW (Interpretation: \u201cby […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/axing.com\/en\/service\/compendium\/def\/\" \/>\n<meta property=\"og:site_name\" content=\"AXING AG\" \/>\n<meta property=\"article:modified_time\" content=\"2021-03-09T13:15:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/axing.com\/wp-content\/uploads\/2016\/01\/Logo_HiDPI.png\" \/>\n\t<meta property=\"og:image:width\" content=\"604\" \/>\n\t<meta property=\"og:image:height\" content=\"100\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/axing.com\/en\/service\/compendium\/def\/\",\"url\":\"https:\/\/axing.com\/en\/service\/compendium\/def\/\",\"name\":\"DEF - 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