Aye! --- Attempting to 'wade through' the 'traditional' analog signal construction technique precipitates migraines to this day!HAPPY BIRTHDAY FM STEREO!!!
That's not really related to it being an AM subcarrier since all the AM subcarrier information is encoded in FM before transmission...................
Massive amounts of under-the-table money over 5 years, RCA won. Their AM subcarrier is subject to all of the problems that led to the development of FM in the first place, including fading away into noise. That's why the STEREO light flickers out at the fringes while the mono signal still is strong.
The sad story about the inventor of FM (and a lot more):Massive amounts of under-the-table money over 5 years, RCA won.
ak
Don't think so. The baseband mono channel in stereo has almost the same bandwidth as the original mono channel, 15 kHz vs. less-than-20 kHz. Original mono FM had many more possible subcarriers for commercial and public services. These were rearranged to make room the the difference channel and its subcarrier. Bandwidth is the same as the baseband channel. The two channels are functionally independent within the 75 kHz modulation bandwidth.That's not really related to it being an AM subcarrier since all the AM subcarrier information is encoded in FM before transmission.
The reason for the Stereo signal having more noise is that the audio bandwidth has to twice as high for the stereo audio information meaning the S/N is reduced by 3dB.
Think so. The bandwidth I'm referring to is the audio bandwidth after the detector, not the FM bandwidth.Don't think so. The baseband mono channel in stereo has almost the same bandwidth as the original mono channel, 15 kHz vs. less-than-20 kHz. Original mono FM had many more possible subcarriers for commercial and public services. These were rearranged to make room the the difference channel and its subcarrier. Bandwidth is the same as the baseband channel. The two channels are functionally independent within the 75 kHz modulation bandwidth.
by Duane Benson
by Jake Hertz
by Jake Hertz
by Duane Benson