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This is useful in situations where a signal with wider RF bandwidth and a receiver
with a narrow front end “collide” and result in increased distortion and loss of part
of the signal.
When pushing hard for loudness, using the RF Bandwidth Controller can result in a
slight loudness loss (approximately 0.5dB) and some loss of stereo separation, so its
use and the resulting tradeoffs will be largely market-dependent.
The RF Bandwidth Controller is also useful for correcting anomalies such as single-
channel DC offset or for optimizing modulation performance per ITU
Recommendation 1268, details of which can be found here:
https://www.itu.int/dms_pubrec/itu-r/rec/sm/R-REC-SM.1268-3-201408-I!!PDF-
E.pdf
SSB (Single Sideband) Stereo Subcarrier Options
Some improvements in FM stereo reception are possible by reducing or eliminating
the upper sideband of the stereo subcarrier in the FM baseband signal. This mode is
called Single-Sideband Suppressed Carrier or SSBSC.
Background information on the concept is available in this white paper:
https://www.telosalliance.com/images/Omnia%20Products/White%20Papers/MP
X-SSB-White-Paper.pdf
Omnia.9sg offers three different SSBSC filtering modes, allowing users to choose
which is most appropriate in their market. Details of each are provided later in this
manual.
ITU-R BS.412 MPX Power Controller
The Power Controller provides the ultimate combination of loudness and
modulation while still ensuring compliance with applicable BS.412 regulations as
determined by country or region.
