The FM/HD digital audio processor provides universal transmitter protection and audio processing for FM broadcast. It can be configured to interface ideally with any commonly found transmission system in the world, analog or digital.<br>The broadcasters have trusted Optimod-FM 8500 to build audiences and ratings with its big, bold sound. Optimod-FM 8500S now offers the popular 8500 sound in a compact, cool-running 1U package. The 8500S provides stereo enhancement, equalization, AGC, multiband compression, low-IM peak limiting, stereo encoding and composite limiting-everything that you need to compete in your market.<br>The FM and digital media processing paths split after the 8500S's stereo enhancer and AGC. There are two equalizers, multiband compressors, and peak limiters, allowing the analog FM and digital media processing to be optimized separately.<br>The 8500S includes a ratings encoder loop-through connection. This allows a ratings encoder with an AES3 digital input and output to be inserted between the output of the left/right audio processing and the input of the stereo encoder. This keeps the audio level driving the ratings encoder as high as possible, minimizing the number of low audio level alarms that the ratings encoder generates.<br>The 8500S includes a full-featured RBS/RBDS generator at no additional charge. The generator supports dynamic PS. It can be controlled via 8500S presets and an ASCII terminal server that can be connected to automation to support displaying title and artist.<br>The SNMP (Simple Network Management Protocol) features allow you to monitor your Optimod’s status and to send Alarm notifications via your Optimod’s Ethernet connection to your network.<br>The 8500S prevents aliasing distortion in subsequent stereo encoders or transmission links by providing bandwidth limiting and overshoot compensated 15kHz low-pass filters ahead of the 8500S's audio outputs and stereo encoder.<br>The stereo encoder has two outputs with independent level controls, each capable of driving 75 ohm in parallel with 47000pF (100ft/30m of coaxial cable).