Safety - Cascade Amateur Radio Enthusiasts
The output of the first device is 6 dB more than what the second device can accept. You'll notice that in the first voltage to dB calculation you ended up with a minus dB number and in this one a plus or positive dB number. +dB AND -dB. In the last example, if you used the formula 20 x Log (7.75/15.5), your answer would be -6.02 dB. ................
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