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The symbol dBrn or dB(rn) is an abbreviation for decibels above reference noise.. Weighted noise power in dB is referred to 1.0 picowatt.Thus, 0 dBrn = -90 dBm.Use of 144 line, 144-receiver, or C-message weighting, or flat weighting, can be indicated in parentheses.
In telecommunications, reference noise is the magnitude of circuit noise chosen as a reference for measurement.. Many different levels with a number of different weightings are in current use, and care must be taken to ensure that the proper parameters are stated.
Abbrev. [1]Meaning [1] Latin (or Neo-Latin) origin [1]; a.c. before meals: ante cibum a.d., ad, AD right ear auris dextra a.m., am, AM morning: ante meridiem: nocte ...
This is a list of abbreviations used in medical prescriptions, including hospital orders (the patient-directed part of which is referred to as sig codes).This list does not include abbreviations for pharmaceuticals or drug name suffixes such as CD, CR, ER, XT (See Time release technology § List of abbreviations for those).
Hospital Cornea Retrieval Programme HCTZ: hydrochlorothiazide: HCV: hepatitis C virus: HD: Hodgkin disease Hemodialysis Huntington's disease: HDL: high-density lipoprotein: HDL-C: high-density lipoprotein-cholesterol HDN: hemolytic disease of the newborn: HDS: hemodynamically stable (i.e., not bleeding) HDU: high dependency unit: HDV: hepatitis ...
This Wikipedia page provides a comprehensive list of medical abbreviations starting with the letter F.
In telecommunications, the term channel noise level has the following meanings: . The ratio of the noise in the communication channel at any point in a transmission system to an arbitrary level chosen as a reference.
Sortable table Abbreviation Meaning M: murmur (heart murmur or heart attack that can cause death) MACE: Major adverse cardiovascular events: MAC: Mycobacterium avium complex: MAE ...