[BC] FM Stereo Question

Mike McCarthy towers at mre.com
Sun Feb 28 16:17:29 CST 2010


Maybe..maybe not.  Current processors don't have a "switch" per-say.  Our
Omnia's require a real change to the pilot injection inside the "ENCODE"
section.  And even then, make sure the unit is not encoding the stereo
subcarriers with no pilot. You WILL gain some loudness when the stero
subcarriers are off and then compensated for. A 2nd level adjustment
between stereo and mono.

In our case, we needed modify the DIGITS we use with TWO level pots and a
latching relay between then to switch between mono and stereo.  When the
mono goes off, the gain is set higher to sustain 100% modulation.

MM

> I'll probably experiment with the mono idea to see how it works out. It is
> easy enough to turn it back on.
>
> Chuck Conrad
> KZQX Radio
> www.kzqx.com



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