[geocentrism] radiated power.
- From: "Philip" <joyphil@xxxxxxxxxxx>
- To: <geocentrism@xxxxxxxxxxxxx>
- Date: Fri, 15 Apr 2005 15:11:09 +1000
I hope this helps... Phil
30dBW is a thousand Watts.
Q: What is a dBW?
A: The decibel is a way of expressing the relative power of something compared
to a standard, usually electrical power, current or voltage, or sound levels.
In this case it is electrical power relative to one Watt. The decibel is a
logarithmic unit, so 10dBW is ten Watts, 20dBW is a hundred Watts and
30dBW is a thousand Watts.
In the European union, the power output of radio transmitters are expressed in
dBW's by the licensing authority. In the U.K. this has replaced the old system
of quoting transmitter power in Watts. Aerial gain is expressed in dB's, so
assuming no feeder loss a 10dBW transmitter connected to an aerial with a 9dB
gain would radiate an effective power of 10+9 = 19dBW (80 Watts).
Other related posts:
