NSC1 Stereo Coder
and 2 Band Audio Processor
This is a high performance Stereo Generator and 2 band automatic Audio Processor built into a one- rack space unit. Its stereo separation performance is higher than 60 dB with S/N higher than 85 dB. A high sensitivity VU meter allows accurate measurement of audio input levels. The two balanced audio inputs (XLR Connectors) are filtered from RF interference. The very low distortion (typical 0.05 dB) makes this low cost generator comparable in performance to the more expensive digital equipment. In addition we have built in a 2 band Automatic Audio processor so that the sound will always be at the optimum level without the need of any regulation.
Features
L & R Input connectors: XLR female balanced
L & R Input impedance: 600 Ω or 10KΩ internal selectable
L & R Input level: 0dBm ± 3dB
Audio filter response: ± 0.25dB 20Hz to 15KHz
Audio filter attenuation: >48dB @ 19KHz,>39dB to 60KHz
Pre-emphasis: Flat /50 uS /75uS internally selectable
Pre- emphasis deviation from ideal curves: ± 0.2
Harmonic distortion on encoded channels: < 0.1% (0.05% typ.)20Hz to 15KHz
S/N: > 85dB rms
Stereo separation: > 60 dB ( 65dB type)
Pilot frequency: 19KHz ±1Hz
Subcarrier frequency: 38KHz ±2Hz
Subcarrier generation: 4.864KHz Crystal oscillator
Pilot level: 8 to 12% internal adjustable
Phase difference 19/38KHz: 0° ± 2° internal adjustable
38KHz suppression: > 60dB
CMRR: > 60dB
Powering: 115 - 230 VAC rear panel selectable
Power consumption: 30 VA
Rack dimension: 19” 1 standard unit
Weight: 6 Lbs ( 2.7 Kg.)
NSC1 Audio Processor Specifications
Audio Processing: 2 Bands
AGC Control : Fully Automatic
Maximum attenuation: 40dB
Maximum Gain : 40dB
Noise level (unweighted): 80dB
Distortion at no limiting: 0,1%
Distortion at max limiting: 1%
Attack time: < 5mS
Release time: 800mS (typ.)
Low audio frequency range: 30Hz - 500Hz
High audio frequency range: 400Hz - 15KHz
Jupiter Digital 3
Band Audio Processor with Stereo Generator
- All in a 1-Unit 19" Chassis
Full Digital Processing
Digital 3 Band Audio Processing
Digital Stereo Generator
Digital RDS (Optional)
Digital Input AES/EBU-SPDIF (Optional)
- Instantaneous preset recall
- 2 Serial RS232 Ports
- PC Control software
The Jupiter is a 3 band digital processor with 30 pre-programmed equalization curves. It is extremely user-friendly, allowing even inexperienced technicians to make sound changes. The Jupiter is directly controllable through the front panel settings or by PC using the serial ports and control software that is supplied as standard. The Jupiter features two independent serial ports uncoupled by opto-isolators. This assures maximum immunity from other equipment noise. Standard is a digital stereo generator MPX. Digital input and digital RDS encoding are optional.
Jupiter’s digital input (optional) can be connected in two ways: through a balanced XLR connector or a standard fiber optic connector. This input supports AES3/EBU, S/PDIF, IEC60958, EIAJCP1201 protocols with 32KHz, 44.1KHz, 48KHz, 96KHz sample rate. The digital input does not require any special setting since the Jupiter can recognize the injected digital signal and configure it automatically.
The MPX (composite) stereo generator inside the Jupiter is completely digital, so the MPX signal is obtained through DSP technology. Nicom offers radio stations a top digital technology solution by integrating a digital stereo generator into the audio processor instead of the widely used analog ones. The stereo generator inside the unit increases its performance by directly processing the digital signal and ensuring perfect modulation control, while an external analog stereo generator, inserted in the chain, would adversely affect the original sound signal. The top performance of the stereo generator inside the Jupiter makes it one of the best on the market at this time.
The Jupiter features a digital RDS modulator, as an option, which ensures very high performance--especially compared to analog RDS generators now available on the market. The available services are listed in the technical specifications. Nicom offers the Jupiter, presenting to radio stations an all digital audio chain and the purity of digital sound.
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