Technical Specifications - dB Mozart 30 User Manual

3 TECHNICAL SPECIFICATIONS

RF Output impedance
Frequency range
Frequency control
Off-lock attenuation
Type of modulation
Modulation mode
Frequency deviation
Reference
Constancy of freq. dev.
Variation of freq.
Short term stability
Instantaneous BW
RF harmonics
RF spurious
Pre-emphasis
Pre-emphasis precision
Stereo operation
1. Audio response
2. Audio filter attenuation
3. Common mode rejection
4. Stereo Separation
5. Crosstalk attenuation (M / S)
6. Spurious products
7. 38 kHz suppression
8. Subcarrier frequency
9. Subcarrier generation
10. Pilot frequency
11. THD+N on encoded channels
12. Nominal pilot deviation
Audio response
THD+N on encoded channels
RF FEATURES
50Ω unbalanced
87.5 to 108 MHz
Synthesizer µprocessor controlled
> 75 dBc (typical -80 dB)
F3E / F8E direct FM at the carrier frequency
Mono, Stereo, Multiplex, SCA, RDS, AUX (input selected by front
panel)
±75 kHz =100 %, ±150 kHz capability (others on request)
VCTCXO 10 MHz ± 1ppm or 10 MHz external (Optional)
±1 % over six months
± 1ppm/year
± 1 ppm from -5 to +45 °C
>20 MHz
Exceeds EBU/CCIR/FCC requirements > -75dBc
Exceeds EBU/CCIR/FCC requirements < -100 dBc @ ± 1 MHz min.
out of carrier (typical -110dB)
Flat/50/75µs selectable via front panel
Nominal 1% (typical 0.4% )
CCIR 450/S2 "pilot tone system"
STEREO OPERATION
±0.3 dB da 20 Hz to 15 kHz
> 55 dB @ 19 kHz, >45dB 19 to 100kHz
20 Hz to 15 kHz > 45 dB
30-80Hz >53dB (typ. 56), 80Hz-15kHz >60 dB (typ.70)
> 40 dB 30 Hz to 15 kHz (typ. 52dB / 400Hz to 5kHz)
> 53 kHz > 50 dB
> 70 dB (Typ -85dB)
38 kHz ± 2 Hz
Internal crystal
19 kHz ± 1 Hz
< 0.03 % 30 Hz TO 15 kHz ( typ -75dB)
±7 kHz
MONO OPERATION
±0.3 dB 20 Hz to 15 kHz (+0/-2%)
30 Hz to 15 kHz < 0.06% ( typ. 0.03 % ) typ. -78dB
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