Signal strength
From Biocrawler, the free encyclopedia.
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
 | This wireless-related article is a stub. You can help Biocrawler by expanding it (http://www.biocrawler.com/w/index.php?title=Signal_strength&action=edit). |
