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Transmission Transmission

Audio Processors


AM Broadcast Processor w Int'l SW

From: Inovonics Broadcast
  • Weight:8 lb

  • Shipping Dimensions:23 x 16 x 2 in

-Meets US (NRSC-compliant) and overseas AM transmission specifications
-Separate pre-emphasis protection limiter
-Active multipole low-pass filtering
-Feedforward Pulse-Width-Modulation (PWM)
-Built-in asymmetrical peak controller

The 222 was originally developed as a "post-processor" to ensure US broadcasters' compliance with FCC-mandated occupied-bandwidth regulations. It incorporates a fast, asymmetrical peak limiter, independent pre-emphasis-protection limiting, and a very sharp-cutoff low-pass filter with proprietary overshoot control.

The 222 finds ready application in a wide variety of AM broadcast situations. In addition to the NRSC 10kHz cutoff for medium-wave AM broadcasting in the US, any high-frequency protection characteristic between 4.5kHz and 15kHz can readily be accommodated to meet other domestic and overseas needs. Though the 222 is intended to provide basic final limiting, a "floating platform" release characteristic yields sufficient program dynamics compression that often the unit can be run "barefoot" between the console and transmitter with good results. (PWM) control.