Science Fair Project Encyclopedia
Signal strength
(Redirected from MV/m²)
In telecommunications, and particularly in radio, signal strength is the measure of how strong a signal is. Typically, this is measured as voltage per square area. Higher power uses such as broadcasting use units of millivolts per square metre (mV/m²). Very low-power uses are most often in microvolts per square metre (µV/m²).
Expressed in decibels, 1mV/m² is 0dBm (a shortened dB(mV/m²)), or 60dBµ (often written dBu).
- Some examples
- 100dBµ or 100mV/m²: blanketing interference occurs
- 60dBµ or 1mV/m²: the edge of a radio station's protected area
- 40dBµ or 100µV/m²: the minimum strength a station can be received
Last updated: 06-04-2005 14:41:16
03-10-2013 05:06:04
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details