ravisankar
Member level 1
HELLO,ALL
WHAT IS THE RELATION BETWEEN dB AND dBm,GIVE THE RELATION EQUATION.
THANKYOU,ALL.
WHAT IS THE RELATION BETWEEN dB AND dBm,GIVE THE RELATION EQUATION.
THANKYOU,ALL.
balaguru thavamani said:0dB=30dBm
Power in dB=10log(power in watt)
Power in dBm=10log(Power in milliwatt).
Of course it is ..balaguru thavamani said:But 0dBW=30dBm not 1dBW=30dBm
First of all there are a series of mistakes in the various posts above so be careful with all of the comments (this one too).
dB is a relative measurement and dBm is a specific value referenced to milliwatts so therre is no equation to relate the two terms. One often sees a variety of letters after dB indication various reference values.
Again, beware of the comments in this thread. Much of it is in error and will just add to the confusion.