Orban OPTIMOD-FM 8700i

• Dual Power Supplies The 8700i has dual power supplies with independent AC line inputs provide redundant operation to ensure maximum uptime.
• Safety Bypass Relays Analog and AES3 digital inputs and outputs are provided with hard-wire safety bypass relays in case of hardware or power failures.
• Dante™ Audio-Over-IP Connectivity 100% AES67 compliant, Dante uses a dedicated Ethernet connection for two stereo audio inputs and two stereo outputs, each with a dedicated level control. Sample rate conversion is provided for both the inputs and the outputs.
• Digital MPX A 384/192 kHz AES3 digital composite output that is compatible and interoperable with the 192 kHz standard being implemented by several transmitter manufacturers.
• 10 MHz Reference Input A 10 MHz reference input allows the stereo pilot tone frequency and digital composite output sample rate to be locked to a 10 MHz reference signal (like GPS), facilitating single-frequency-network (SFN) and near single-frequency-network (N-SFN) operation.
• Low-Delay DJ Monitor Output It is impractical for talent to monitor all of the processing structures off-air with headphones. A new separate processing structure (of about 5ms) with full 5 band “FM-like Sound” low-latency DJ monitor output is provided for this purpose.
• Streaming Monitor OutputIn cooperation with Optimod PC Remote software, the streaming monitor output allows you to check or improve your station’s signature sound where off-air monitoring is unavailable. The steaming feature allows you to monitor several points within 8700i. Choose either Opus and MP3 codecs for streaming directly to the client PC.
• Subharmonic Synthesizer The Subharmonic Synthesizer creates energy one octave below program energy in the range of 50-90 Hz when such energy is not present at the input and when music is detected.
• Xponential Loudness™ Algorithm The Xponential Loudness™ algorithm reduces listening fatigue and actually improves listeners' hearing using adaptive psychoacoustics.
• “Multipath Mitigator” Left/Right Phase Skew Correction The phase skew corrector maximizes both FM and Digital Radio processing paths for the quality of a mono mixdown or blend that might occur in a receiver or player device. By removing phase shifts between the left and right channels, it minimizes the energy in the stereo subchannel without compromising separation.
• ITU BS-412 Multiplex Power Control The new BS-412 Multiplex Power Controller is improved with a new program adaptive algorithm and has several user flavors.

Analog Audio Input

• Configuration: Stereo.
• Impedance:> 10kΩ load impedance, electronically balanced1.
• Nominal Input Level: Software adjustable from –4.0 to +13.0 dBu (VU).
• Maximum Input Level: +27 dBu.
• Connectors: Two XLR-type, female, EMI-suppressed. Pin 1 chassis ground, Pins 2 (+) and 3 electronically balanced, floating and symmetrical.
• A/D Conversion: 24 bit 128x oversampled delta sigma converter with linear-phase anti- aliasing filter.
• Filtering: RFI filtered, with high-pass filter at 0.15 Hz.

Analog Audio Output

• Configuration: Stereo. The analog output can emit the analog FM processed signal, the digital radio processed signal, or the low-delay monitor signal. The FM processed signal can be flat or pre-emphasized (at 50µs or 75µs), software-selectable.
• Source Impedance: 50Ω, electronically balanced and floating.
• Load Impedance: 600Ω or greater, balanced or unbalanced. Termination not required or recommended.
• Output Level (100% peak modulation):Adjustable from –6 dBu to +24 dBu peak, into 600Ω or greater load, software-adjustable.
• Signal-to-Noise: > = 90 dB unweighted (Bypass mode, de-emphasized, 20 Hz - 15 kHz bandwidth, referenced to 100% modulation).
• Crosstalk: <= –70 dB, 20 Hz - 15 kHz.
• Distortion: <= 0.01% THD (Bypass mode, de-emphasized) 20 Hz - 15 kHz bandwidth.
• Connectors: Two XLR-type, male, EMI-suppressed. Pin 1 chassis ground, Pins 2 (+) and 3 electronically balanced, floating and symmetrical.
• D/A Conversion: 24 bit 128x oversampled.
• Filtering: RFI filtered.
• Hardwire Bypass:Removing power from the Optimod will connect the left and right audio inputs to the left and right audio outputs via a relay.

Digital Audio Input

• Configuration: Stereo per AES3 standard, 24 bit resolution, software selection of stereo, mono from left, mono from right or mono from sum.
• Sampling Rate: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz automatically selected.
• Connector: XLR-type, female, EMI-suppressed. Pin 1 chassis ground, pins 2 and 3 transformer balanced and floating, 110Ω impedance.
• Input Reference Level:Variable within the range of –30 dBFS to –10 dBFS.
• J.17 De-emphasis: Software-selectable
• Filtering: RFI filtered.
• Hardwire Bypass:Removing power from the Optimod will connect the Digital Audio Input to Digital Output #1 via a relay.

Digital Audio Outputs

• Configuration: Two outputs, each stereo per the AES3 standard. The outputs can be set independently to emit the analog FM processed signal, the digital radio processed signal, or the low-delay monitor signal. The FM processed signal can be configured in software as flat or pre-emphasized to the chosen processing pre-emphasis (50µs or 75µs). The HD processing chain receives the output of the multiband limiter and processes it through a look-ahead peak limiter that operates in parallel with the main FM peak limiting system. The HD and FM signals are always simultaneously available. Each output can apply J.17 pre-emphasis if desired.
• Sample Rate: Internal free running at 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, or 96 kHz, selected in software. (Use 44.1 kHz or higher for best peak control.) Can also be synced to the AES3 SYNC input or the AES3 digital input at 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz, as configured in software.
• Word Length: Software selected for 24, 20, 18, 16 or 14-bit resolution. First-order highpass noise-shaped dither can be optionally added, dither level automatically adjusted appropriately for the word length.
• Connector: XLR-type, male, EMI-suppressed. Pin 1 chassis ground, pins 2 and 3 transformer balanced and floating, 110Ω impedance.
• Output Level (100% peak modulation):–20.0 to 0.0 dBFS software controlled.
• Filtering: RFI filtered.
• Frequency Response (Digital Audio Output driven by HD Processing Chain): For output sample rates of 44.1 kHz and above, the frequency response from input to HD-configured output is ±0.10 dB, 2.0 Hz - 20 kHz; flat or with J.17 pre-emphasis applied. The user may specify lowpass filtering to constrain the bandwidth to 15, 16, 17, 18, or 19 kHz.

Dante Audio-Over-IP I/O

• Compatibility: Fully supports Dante networks. Will be AES67-compliant after field-installable firmware upgrade for the Audinate Ultimo chip, expected Fall 2017 from Audinate. (May require third-party software to facilitate device discovery in non-Dante networks.)
• Configuration: Two L/R stereo inputs and two L/R stereo outputs. The outputs have the same configuration options as the AES3 outputs (above) except for the sample rate.
• Sample Rate: Inputs and outputs support 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz. Input locks automatically to the incoming sample rate; out sample rate is software-selectable.
• Connector: 2x RJ45, dedicated solely to the audio-over-IP connection. Supports redundant network operation.

Digital Sync Input

• Configuration: Used for synchronization of either or both AES3 signals to an external reference provided at this input.
• Sampling Rate: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz, automatically selected.
• Connector:XLR-type, female, EMI-suppressed. Pin 1 chassis ground, Pins 2 and 3 transformer balanced and floating, 110Ω impedance.
• Filtering: RFI filtered.
• Hardwire Bypass:Removing power from the Optimod will connect the Digital Sync Input to Digital Output #2 via a relay.

Wordclock/10 MHz Sync Reference Input

• Configuration: Accepts 1x wordclock or 10 MHz reference signals, automatically selected. The DSP master clock can be phase-locked to these signals, which in turn phase-locks the 19 kHz pilot tone frequency, facilitating single-frequency network operation. The digital output sample frequency can also be locked to these signals.
• Level: Unit will lock to 1x wordclock and 10 MHz squarewaves and sinewaves having a peak value of 0.5 V to 5.0 V.
• Connector: BNC female, grounded to chassis, non-terminating to allow reference signals to be looped through via an external BNC “tee” connector (not supplied).

Composite Baseband Outputs

• Number of Outputs: 2 x analog; 1 x AES3
• Subcarrier Modulation Mode: Standard double sideband mode or compatible single sideband/vestigial sideband mode with SSB/VSB crossover at 150 Hz. SSB/VSB mode adds approximately 12 ms of delay to the composite output signal.
• Configuration: Two outputs, each with an independent software-controlled output level control, output amplifier and connector.
• Source Impedance: 0Ω voltage source or 75Ω, jumper-selectable. Single-ended, floating over chassis ground.
• Load Impedance: 37Ω or greater. Termination not required or recommended.
• Maximum Output Level: +12.0 dBu (8.72 Vp-p).
• Minimum Output Level: –12 dBu (0.55 Vp-p) for 0.5 dB adjustment resolution.
• Pilot Level: Adjustable from 6.0% to 12.0%, software controlled.
• Pilot Stability: 19 kHz, ±0.5 Hz (10 degrees to 40 degrees C).
• D/A Conversion: 24-bit
• Signal-to-Noise Ratio: <= 85 dB (Bypass mode, de-emphasized, 20 Hz - 15 kHz band- width, referenced to 100% modulation, unweighted).
• Distortion: <= 0.02% THD (Bypass mode, de-emphasized, 20 Hz - 15 kHz bandwidth, referenced to 100% modulation, unweighted).
• Stereo Separation (analog outputs): At 100% modulation = 3.5Vp-p, > 60 dB, 30 Hz - 15 kHz. At 100% modulation = 1.0 - 8.0 Vp-p, > 55 dB, 30 Hz - 15 kHz.
• Crosstalk-Linear: <= –80 dB, main channel to sub-channel or sub-channel to main channel (referenced to 100% modulation).
• Crosstalk-Non-Linear: <= –80 dB, main channel to sub-channel or sub-channel to main channel (referenced to 100% modulation).
• 38 kHz Suppression: > = 70 dB (referenced to 100% modulation).
• 76 kHz & Sideband Suppression: > = 80 dB (referenced to 100% modulation).
• Pilot Protection: 60 dB relative to 9% pilot injection, ±250 Hz (up to 2 dB composite processing drive).
• Subcarrier Protection (60-100 kHz):> = 70 dB (referenced to 100% modulation; with up to 2 dB composite limiting drive; measured with 800 line FFT analyzer using “maximum peak hold ” display).
• 57 kHz (RDS/RBDS) Protection: 50 dB relative to 4% subcarrier injection, ±2.0 kHz (up to 2 dB composite processing drive)

Analog composite outputs.

• Connectors: Two BNC, floating over chassis ground, EMI suppressed.
• Maximum Load Capacitance: 0.047µF (0Ω source impedance). Maximum cable length of 100 feet / 30 meters RG–58A/U.
• Filtering: RFI filtered.

AES3 Composite Output

• Connector: One XLR-type, appearing on breakout cable
• Sample Frequency: 192 kHz
• Extension to Interim Industry Standard: The composite baseband is internally sampled at 384 kHz and alternate samples are placed on the left and right audio channels. With compatible receiving hardware, this allows the entire baseband frequency range (0 to 99 kHz) to be accommodated without aliasing. If the frequency range of the SCAs applied to the digital output is limited to less than 96 kHz, this is fully compatible and interoperable with the existing system adopted by the industry, which uses only the left channel at 192 kHz.

Remote Control (GPI) Interface.

• Configuration: Eight (8) inputs, opto-isolated and floating.
• Voltage: 6 - 15V AC or DC, momentary or continuous. 9VDC provided to facilitate use with contact closure.
• Connector: DB-25 male, EMI-suppressed.
• Control: User-programmable for any eight of user presets, factory presets, bypass, test tone, stereo or mono modes, analog input, digital input.
• Filtering: RFI filtered.

Tally Outputs (x2)

• Configuration: NPN open-collector
• Maximum Voltage: 30 VDC positive. Protected against reverse polarity by a diode; do not exceed 50 mA through this protection diode.
• Maximum Current: 30 mA; current must be limited externally.

Power

• Voltage: 100–264 VAC, automatically selected, 50–60 Hz, 50 VA.
• Failover: Two supplies are included with automatic failover.
• Connector: IEC, EMI-suppressed x 2. Detachable 3-wire power cord supplied.
• Safety Standards: ETL listed to UL standards, CE marked.

Environmental

• Configuration: NPN open-collector
• Humidity: 0–95% RH, non-condensing.
• Dimensions (W x H x D): 19” x 5.25” x 15.5” / 48.3 cm x 8.9 cm x 39.4 cm. Depth shown indicates rack penetration; overall front-to-back depth is 17.75” / 45.1 cm. Three rack units high.
• Humidity: 0–95% RH, non-condensing.
• RFI / EMI: Tested according to Cenelec procedures.
• Shipping Weight & Dimensions: 30 lbs / 13.6 kg - 25" x 24" x 9"