[BC] Arbitron

[Jim Tonne]

Dana, Blaine and all:

I am going to reveal a  *gross*  level of ignorance
on a subject here but please bear with me!

I have been following the PPM thread for quite a
while now.

Just how does this PPM "encoding" work?

I cannot believe that little "beeps" or something
that is easily heard would be transmitted.  Surely
that would drive listeners bonkers.

I can see perhaps looking at the envelope of the
audio in the home and comparing it with the
envelope of the transmitted signal.  Look at a
transceiver for 30 seconds and compare.

Perhaps I am not alone in my ignorance of the
subject . . .

- JimT