
Originally Posted by
Pic_User
Hi Savnik,
If I read your problem correctly:
You have a RF amplifier that has an analog power meter. The power meter reads a voltage and displays the power on a Logarithmic scale. The input, to move the meter, is voltage. The scale painted on the meter face is logarithmical.
You need the PIC’s adc input to read the DC voltage running the meter and then using mathematics or a “look-up” table convert the voltage to the equivalent power in Watts. You have already calculated the table, posted in your previous post.
Is this close to the question? I am just trying to help with clarifying the question. Sorry I don’t have an answer for you.
-Adam-
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