Orban XPN-AM Optimod AM Audio Processor

The XPN-AM Audio Processor is based upon an AM-optimized version of Orban’s MX limiter technology that was first introduced in the Optimod-FM 8600. This revolutionary limiter technology provides an unprecedented combination of loudness, cleanliness, crispness, speech intelligibility, and coverage. Additionally, XPN-AM’s design incorporates everything Orban has learned in 42 years of AM processing experience, starting with the original Optimod-AM 9000 back in 1977.
Compared to other AM processors, the ability of Orban’s XPN-AM processor to generate greater density with lower distortion can significantly reduce power consumption with Modulation Dependent Carrier Level (MDCL) equipped transmitters. Early field tests show upwards of a 20% power savings is achievable. Depending on MDCL transmitter settings, broadcasters can maximize coverage, minimize power consumption while keeping existing coverage, or split the difference.

Features:
MX Limiter – Orban’s exclusive MX Limiter increases average modulation while reducing distortion and improving speech intelligibility, and increasing HF power handling capability.
20% Power Savings – Compared to other AM processors, provides up to 20% power savings when using MDCL AMC 3 dB dynamic carrier power control.
Processing for multiple broadcast types – Suitable for long wave, medium wave, and shortwave (HF) AM broadcasts.
Maximum coverage – Cuts through today’s high RF noise environments, maximizing coverage.
Diversity Delay – Mono/stereo analog AM processing and HD Radio/netcast processing with built-in diversity delay and delay ramping.
Dense positive peaks – XPN-AM can create dense positive peaks to 150% modulation.
Equalizer – Versatile transmitter equalizer can tune out tilt and ringing in transmission systems.
Variable bandwidth – Variable bandwidth from 2.5 KHz to 9.5 KHz (NRSC), with parametric input filter shapes to trade off brightness against ringing.
Complements the high frequency roll-off – Receiver equalizer shapes pre-emphasis can complement the high frequency roll-off of an “average” AM radio as determined by NRSC tests in 2006.