One doubt:

Still referring to my tones via phone lines problem, will I get any benefit
by using Manchester encoding in my transmission ?

I understand the advantages of a synchronous approach when you are recording
the data on a cassette, but how about phone line transmission ?


Pedro.


>I remember some Manchester backup hardware for the ancient Sinclair
>(or Timex) ZX-81 which used 3 or 4 simple logic IC's to recover the
>data from a plain old audio cassette recorder (and 3 or for more to
>encode the data in the first place).