1-8000MHz AD8318 RF Logarithmic Detector 70dB RSSI Measurement Power Meter

[Music] let's look up on 8080 3:18 a logarithmic detector and we're gonna use it as an RSS I power meter received signal strength indicator this is a unit right here and hook this up all we do is we take the output here this pin over here and we tie that into an analog input on the end then Nano and from the Nano I tied it into a LCD screen this small screen here now this is the purport I put it on and this happens to be the backside of the board I'd you just do that so I don't confuse when I'm wearing it up you could use an OLED display or just use the monitor on your computer to you know without an LCD display now what these units do is if they put out a logarithmic voltage from about 0.4 volts to 2 volts now we've got to convert that to DBM so in order to do that we have this graph here now we're going to use the slope intercept method in algebraic form and the you can find the slope