[BC] FM Stereo invention

[Robert Meuser]

It is better if you can properly filter it. That is the big gotcha with 
on air switching systems. The necessary filter to eliminate 38 kHz 
harmonics such as the third at 114 kHz can compromise high frequency 
separation and possibly cause some over shoot. More advanced methods of 
switching in smaller steps were developed which raised the frequencies 
to be filtered to 512 kHz or higher. THEY are the best way to go with an 
analog stereo generator.

R


WFIFeng at aol.com wrote:

>In a message dated 02/19/2007 01:07:16 PM Eastern Standard Time, 
>dcope4 at verizon.net writes:
>
>  
>
>>In the lab I got much better stereo separation with the TDM method over the
>> Matrix.  Especially in the receivers demux.  IMD and THD was also better.
>>    
>>
>
>You mean that the 38Khz chopped L/R alternate method is better?
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