[BC] Re: AM Stereo On A Mono Radio
R A Meuser
rameuser at ieee.org
Thu Oct 4 15:45:41 CDT 2007
Jim
You are correct. The 25 HZ tone was just in the L-R channel which is
sort of the phase modulated channel but since the system was quasi EER,
it is actually the quadrature AM channel which could be decoded in a bad
mono receiver.
Jim Tonne wrote:
>
>> (only problem I ever noticed was that pesky 25 Hz. "pilot" under quiet
>> passages.)
>
>
> I thought the 25 Hz signal was only in the phase-modulated
> channel. If that was the case, then shouldn't it be not
> audible on the sum (AM) channel?
>
> Maybe it shows up not on the sum channel but it might
> show up in the left and right channels.
> - JimT
>
>
>
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