Specifications
Performance
- Bypass mode: measured from analog input to analog output, as fully described below. See "test".
- Frequency Response: ±0.4dB within selected passband (high-pass 50-100Hz, low-pass 4.5-9.5kHz).
- Noise: <-75dB (referenced to 100% modulation, 50Hz-20kHz).
- Total System Distortion: <0.05% THD.
Analog Audio Input
- Configuration: One monophonic input.
- Impedance: Electronically balanced, 600 ohm or >3.6k ohm, jumper-selectable.
- Common mode rejection: >70dB, 50-60Hz. >45dB, 60Hz-15kHz.
- Sensitivity: -20dBu to +20dBu to produce 10dB AGC at 1kHz, software and jumper-adjustable.
- Maximum input level: +27dBu, software-adjustable.
- Connectors: XLR-type, female, EMI-suppressed. Pin 1 chassis ground, Pins 2 and 3 balanced, floating, and symmetrical.
- Filtering: RFI filtered, with high-pass filter at 0.15Hz.
Analog Audio Output
- Configuration: Two monaural outputs for use with two transmitters, with separate level control and output amplifiers.
- Source Impedance: 365 ohm, electronically balanced to ground.
- Load Impedance: 600 ohm or greater, balanced or unbalanced. Termination not required.
- Output Level (100% peak modulation): Adjustable 0dBu to +20dbu with front panel independent
multi-turn potentiometers. - Connector: XLR-type, male, EMI-suppressed. Pin 1 chassis ground, Pins 2 and 3 balanced. Positive voltage on Pin 2 correlates to positive modulation.
- D/A Conversion: 18-bit.
- Filtering: RFI filtered.
Digital Audio Input (Digital I/O option installed)
- Configuration: Two-channel AES/EBU standard. 20-bit resolution. Software selection of left, right, or sum as input source.
- Sample Rate: 32, 44.1 or 48kHz, automatically selected.
- Connector: XLR-type, female, EMI-suppressed. Pin 1 chassis ground, Pins 2 and 3 transformer balanced and floating.
- Input Reference Level: Software-adjustable from -30dBFS to -10dBFS.
- J.17 De-emphasis: Software-selectable.
Digital Audio Output (Digital I/O option installed)
- Configuration: Two-channel AES/EBU standard. 20-bit resolution. Both channels carry the same audio data. Status bits per AES3-1992 standard "single-channel mode."
- Sample Rate: 32, 44.1 or 48kHz, software-selectable.
- Sync: Software-selectable for internal or external. In external, digital output is synchronous with digital input.
- Connector: XLR-type, male, EMI-suppressed. Pin 1 chassis ground, Pins 2 and 3 transformer balanced and floating.
- Output Level (100% peak modulation): 0dBFS to -20dBFS, software-adjustable.
Remote Computer Interface
- Configuration: RS-232 interface to IBM PC-compatible computers, directly or via modem, for remote control and metering.
- Minimum PC Requirements: 386, hard disk drive, 4MB RAM, VGA grayscale or color display, DOS 3.3, Microsoft® Windows™ 3.1 or later, Hayes-compatible modem (9600bps, V.42 error correction protocol).
- Recommended PC: 486 or higher computer, hard disk drive, 8MB RAM, VGA color display, DOS 5.0 or later, Microsoft® Windows™ 3.1 or later, Hayes Accura 144 modem (9600bps, V.42 error correction protocol).
- Connector: RS-232, DB-9 male, EMI-suppressed.
- Control: All user-adjustable processing parameters, presets, system parameters. (Transmitter equalization and analog output level control are limited to 9200 front panel adjustment only.)
- Metering: Simultaneous dynamic metering of input level, gain reduction, output level.
- Archive: Copies all data from the 9200 to hard disk for archiving, backup, or transferring to other units.
Remote Control Interface
- Configuration: Eight (8) opto-isolated inputs.
- Voltage: 6-24V AC or DC, momentary or continuous, optically-isolated. 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, day, night, bypass, sine wave test, analog input, digital input (if Digital I/O option installed).
Power
- Voltage: 100-132VAC or 200-264VAC, switch-selectable on the rear panel, 50-60Hz, 25 VA.
- Connector: IEC, EMI-suppressed. Detachable 3-wire power cord supplied.
- Ground: Circuit ground is independent of chassis ground; can be isolated or connected with a rear panel switch.
- Safety Standards: ETL listed to UL standards, CE.
Environmental
- Operating Temperature: 32° to 122°F / 0° to 50°C at nominal operating voltages.
- Humidity: 0-95% RH, non-condensing.
- Size (W x H x D): 19" x 3.5" x 14.25" / 48.3cm x 8.9cm x 36.2cm. Two rack units high.
- Weight: 14lb/6.4kg.
- Shipping Weight: 18.5lb/8.4kg.
Processing
- AGC: Gated AGC keeps a consistent level into the multi-band compressor and limiter. Can be defeated in software (defeat when AGC is applied at the studio).
- Receiver HF Equalizer: 21 selectable curve shapes, amount of ultimate boost adjustable 0-22dB, plus NRSC-standard modified 75µs pre-emphasis.
- Multi-band Compression and Limiting: Five bands.
- Absolute Peak Control: Controls peak output with less than 2% overshoot under all processing conditions.
- Presets: Stored settings of the audio processing parameters that can be recalled from the front panel, by remote control, or by remote computer. Eight factory presets (cannot be erased), eight user presets (stored in non-volatile memory).
- LESS-MORE Control: One knob to adjust the amount of processing without having to understand how the processing controls function.
- FULL Control: Permits individual adjustment of processing controls: AGC on/off, AGC DRIVE, AGC RELEASE, GATE THRESHOLD, BASS COUPLING, MULTIBAND DRIVE, MULTIBAND RELEASE, MULTIBAND CLIP, DOWNWARD EXPANDER THRESHOLD, HF CLIPPING.
- EXPERT Control: Permits fine-tuning adjustments of more advanced parameters that affect spectral balance: BAND 1-5 INPUT DRIVE, BAND 1-5 OUTPUT MIX, FINAL CLIP DRIVE.
- EQUALIZATION Control: "Basic EQ" allows adjustment of high frequency receiver equalization, and relative spectral balance by gain control of low and mid-bands. "Expert EQ" adds two bands of parametric EQ (low and mid-frequencies).
Transmission Control
- Positive Peak (Asymmetrical) Modulation: Adjustable, 100-150%.
- High-pass Filter: Adjustable 50Hz to 100Hz in 10Hz steps.
- Low-pass Filter: Adjustable from 4.5kHz to 9.0kHz in 0.5kHz steps, plus NRSC. Guaranteed to meet
ITU-R (Recommendation 328-5) and NRSC-1 power spectrum specifications without the need for further low-pass filtering prior to the transmitter. Typically set for 6.0kHz for ITU-R. - Transmitter Equalizer-LF: Low frequency tilt, to cancel negative-slope tilt typical of older technology transmitters. Independent control of very low frequency compensation to avoid saturation and non-linear effects in transmitters with limited low frequency power handling capacity.
- Transmitter and Antenna Equalizer-HF: High frequency shelving, creates controlled undershoots in high frequency transient waveforms to prevent RF envelope overshoot due to excessive Q in transmitters, phasors, and/or antenna systems. High frequency delay, introduces added time delay selectively to compensate for non-constant group delay in the transmitter/antenna system, thus optimizing transient response by creating constant time delay at all frequencies within the audio passband.
- Multiple transmitters and day/night: Separate equalization settings are provided for three outputs (two analog, one digital), and day/night settings. Day/night is used where stations change the directional antenna pattern at night.
Test
- Bypass: Front panel and remote switchable. No processing; audio is digitized, high-pass and low-pass filtered, and applied to safety clipper to protect transmitter. Gain adjustable -18dB to +15dB.
- Sine wave Tone: Programmable 30Hz-9.5kHz, 0-100% modulation.
- Square wave Tone: Programmable 62.5Hz-1kHz, 0-50% modulation. Used for transmitter equalization adjustment.
Warranty
- One year, parts and labor. Subject to limitations stated in our Standard Warranty.
Orban engineers are constantly working to improve the quality of our products. Specifications are, therefore, subject to change without notice.