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Untitled Document

FM Audio Processor Solidyne 362

Technical Specifications

Haga click aqui para ver un artículo técnico ( paper) acerca de la Teoría de los modernos
procesadores de audio y su relación con el aumento del alcance de una emisora de FM Estéreo.
En castellano, PDF (700 KB)

NOTA:Un paper más completo basado en esta teoría está publicada en inglés en el
Journal of the Audio Engineering Society,
O.Bonello, March 2007 (www.aes.org)

 

Specifications

Measured from balanced XLR inputs to XLR outputs

    
 

Analog Input

XLR3 conector, level self-adjusted -6 dBu to + 15 dBu
Z= 600 / 10 Kohms, balanced

    
 

Analog Output

Balanced, + 4 dBu Z= 600 / 10 Kohms, with de-emphasis (flat response)

   
 

MPX Output

600/10 Kohms, factory set level to standard 4 Vpp
Differential output, BNC connector, floating ground 50 ohms Allows 45 dB canceling buzz & noise due to ground loops

    
 

Frequency
Response

20 - 16.000 Hz +/- 0,5 dB
measured below compression & limiter threshold		    
 

Harmonic
Distortion

Below 0,02 % @ 30-15.000 Hz

    
 

Noise

 Below - 90 dBA ref 100 % modulation
    
 

Stereo
Separation

> 75 dBA    
 

Subsonic Filter

 Chebyshev 2nd order, 15 Hz    
 

Asymmetry
Cancelling

5 : 1 cancelling effect, using Khann-Bonello system

   
 

Expander

10:1 slope, 0,1 msec attack time, 200 msec release

    
 

AGC (wideband)

VCA controlled, 30 dB range, 3 sec attack/release

    
 

Multiband
Compressors

3 bands, 18 dB/octave,
Linear Phase crossover
Compressors: 30 dB range, 5:1 slope,VCA controlled
Automatic attack time
Release time user controlled by 3 x ENERGY controls		    
 

IM Cancelled
Clipper

IM clipper cancellation > 30 dB below 250 hz    
 

Dynamic EQ

0 - 12 dB dynamic boost at Low, Mid and High Frecuency
Front panel user controlled

    
 

Processing

7 stages of processing devices    
 

Power

115 V / 230 V (rear switch selected) 50/60 Hz, 20 W    
 

Dimensions

19" rack mount. Module one (44,4 mm)    

 

 

Digital Stereo Coder 16x Oversampling

Specs are measured from internal Stereo coder
to MPX out with Belar FM1

 
 
Audio input
 2 Vpp for 100 % MPX output (4 Vpp)    
 

MPX output

Differential output, BNC connector, floating ground 50 ohms Allows 45 dB canceling buzz & noise due to ground loops
4 V pp max 600/10 kohms
    
 

Frequency Response

20-15.000 +/- 0,2 dB,
plus 15 Khz/5 order eliptic, Active FDNR, L.P. filter
Attenuation at 19 Khz > 50 dB

    
 

Harmonic
Distortion

From 30-15.000 Hz, below 0,005 %
Measured Belar FM1 and Tektronix 5L4 N		    
 

Signal to Noise
Ratio

Better than 90 dBA with reference to 100% modulation    
 

Stereo
Separation

Typical > 65 dB at 1 Khz
Better than 45 dB @ 20-12.000 Hz

    
 

38 Khz suppression

 Below - 70 dB    
 

57, 76 & 95 Khz
suppression

 Below - 75 dB    
 

Pilot tone
stability

+/- 0,002 % (+/- 0,5 Hz)