All feed lines exhibit some sort of line loss, some more than others. This means that when you send your radio signal through that cable or line, it may start out as 100 watts, but how much do you suspose is actually making it to the other end?

Enter the signal power and the line loss in the slots below and find the answer.

Enter the measured RF output of the transmitter (input end of the coax)
  Watts

Enter the feed line loss
  dB

Expected output power from the feed line is      Watts

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