[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
> 
> 
> 
> _______________________________________________
> 
> The BROADCAST [BC] list is sponsored by SystemsStore On-Line Sales
> Cable-Connectors-Blocks-Racks-Test Gear-Tools-Lots More + Now Barix too!
> www.SystemsStore.com       Tel: 407-656-3719    Sales at SystemsStore.com
> 
> 




More information about the Broadcast mailing list