Orban 5750 FM & DAB+/HD Radio Audio Processor

OPTIMOD 5750 is the second of Orban’s new generation of audio processors and comes with all the features needed in a high-quality audio processor for FM and digital radio. It has a compact 1RU design, is equipped with a new high-resolution touch display and controllable via any HTML5 web browser.

OPTIMOD 5750 replaces its pre-decessor OPTIMOD 5700i and provides FM as well as HD processing for DAB+, HD Radio and streaming. The FM and HD settings can be coupled to make the blend between analog and HD1 as smooth as possible in HD Radio. Alternatively, the FM and the digital processing can be adjusted independently. This is valuable when the digital processing drives a channel that does not require blending, such as an Internet stream.

Features:
Four Processing Structures: Five-Band, Low-Latency Five- Band, Ultra-Low-Latency Five-Band and Two-Band.
Window-Gated AGC: Intelligent two-band window-gated AGC controls levels subtly and unobtrusively.
RDS/RBDS: Onboard generator supports dynamic PS scrolling and IP access.
Factory Presets: OPTIMOD 5750 has numerous factory presets included in delivery; Orban’s exclusive “Less-More” control simplifies creating your own signature sound.
AES67/SMPTE ST-2110: Two redundant network interfaces are available for Audio-over-IP connections supporting AES67, RAVENNATM and SMPTE ST-2110. AES67 provides Dante and Livewire+TM compatibility.
Remote Control/Monitoring: OPTIMOD 5750 can be configured and controlled via any HTML5 web browser. SNMP v2 and Ember+ are also supported.
Audience Measurement: Two internal Watermarking Encoders are optionally available, allowing the FM and the DAB+/HD Radio signals to be watermarked independently.
Streaming Monitor Output: The processed FM or DAB+/HD
Radio signals can be monitored remotely via IP, allowing processor adjustment in locations where a clean off-air signal is unavailable.
μMPX interface: The optional μMPX Interface allows you to transmit DMPX over IP.
Internal Storage for Audio Backup: A 2 GB Flash Memory provides two hours linear or twelve hours AAC, MP3 or OPUS encoded Audio.
Internet Streaming Decoder: This feature can be used as a backup audio source received via Audio-over-IP.
Diversity Delay: An adjustable delay can be inserted in the FM and/or digital path to ensure time-alignment of the FM and HD Radio/DAB+ signals at the receiver.
“True Peak” Limiter: The “True Peak” limiter in the digital processing path anticipates and controls peak levels following D/A conversion, a feature now required by many broadcasters.
ITU BS.412 Multiplex Power Control: For countries requiring the multiplex power to be constrained to a specified limit, this feature can be activated to ensure compliance while controlling MPX power smoothly and reliably.
ITU-R BS.1770-4 Loudness Control facilitates compliance with modern target loudness recommendations like EBU R 128.
Silence Detection: A programmable silence detector is available for the analog, digital and AoIP inputs. It can generate alarms and allows automatic switching to a backup input/input audio storage.
Dual Power Supplies: OPTIMOD 5750 is equipped with monitored dual-redundant power supplies to ensure 24/7 operation.
Safety Bypass Relays: The analog, digital AES3 and the composite audio inputs and outputs have defeatable safety bypass relays that operate in case of hardware or power failures.

Specifications:
Audio Input Channels:
1 x stereo analog
2 x stereo digital AES3
2 x stereo AoIP

Audio Output Channels:
1 x stereo analog
2 x analog MPX/composite
2 x stereo digital AES3 or 1 x stereo digital AES3 and 1 x DMPX (configurable)
4 x stereo AoIP
1 x headphone output (for monitoring)
Optional 1 x μMPX (DMPX over IP)

SCA Inputs: 2 x

Synchronisation:
10 MHz clock input
AES11 sync input
19 kHz pilot tone reference output

GPIOs: 8 x inputs, 2 x outputs

Latency: 4 – 22 msec (depending on the processing structure), Low-latency AES Output: 3 – 8 msec

IP Network: 1 x RJ45 Ethernet Management, 2 x RJ45 Dual-redundant AoIP