So I have two 1:1 transformers with 30 turns at primary and secondary. I would like to couple an ac signal to Transformer 1 (by switching a 5V line) and have the secondary to add this signal to a 20VDC battery line. Then I want the second transformer to connect to this dc battery down the line to receive this signal and remove the dc and just accept the ac so I can demodulate and use as data. How do I do this? I need help