Olin Lathrop ha scritto: > That's not really what it said, as that would be ambiguous. The page you > linked to says "0+-1 dBm/600 Ohm". Note the extra "m" after "dB". That > defines 0dB as being 1mW into 600 ohms. Thank you very much Olin :) Actually, this part is clear enough to me, in the sense that I plan on having an adjustable level control either in SW on the PIC or in an OpAmp stage before the line itself. I mostly wanted to put down some points about the transformer, the line, and the power stage (power supply) -- Ciao, Dario -- Cyberdyne -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist