Optonica
ST-5200
FM/LW/MW
Stereo Synthesizer Tuner with
Microprocessor Tuning System
The
synthesizer tuning system employed in this 3-band stereo tuner minimizes error
and drift by breaking down a reference frequency and using it to synthesize the
tuning frequency. As aresult, extremely stable, highly accurate reception is
ensured. An easy-to-read digital frequency tuning display indicates the tuned
frequency to enable pinpoint tuning accuracy. The auto search tuning system
allows the synthesizer to be set to stop automatically at the nearest station
in the chosen direction for effortless tuning. 10 presettable station memories
can be set for one-touch tuning of favourite station. LED tuning meters
facilitate pinpoint tuning accuracy and, when used with the FM air check
calibrator, allow simplified setting of deck input levels for FM recordings.
Soft-touch controls assure smooth operation.
Specifications
FM Section
Frequency
Range: 87,5 - 108 MHz
Antenna
Input: 75 Ω unbalanced; 300 Ω balanced
Synthesizer
Tuner: yes
Span
Frequency: 0,05 MHz
Automatic
Tuning: yes
Pre-Setting
Station; FM/AM total 10
Sensitivity
:
Mono (DIN 40
kHz dev. Signal-to-Noise 26 dB): 1,3 µV
(75 Ω); 1,6 µV (300 Ω)
Stereo (DIN
40 kHz dev. Signal-to-Noise 46 dB): 39
µV (75 Ω); 45 µV (300 Ω)
Total
Harmonic Distortion (1 kHz, 40 kHz dev.):
Mono : 0,2%
Stereo
: 0,3%
Signal-to-Noise
Ratio (1mV, 40 kHz dev. 1 kHz):
Mono : 66 dB
Stereo : 61
dB
Frequency
Response: 30 Hz - 15 kHz (±3 dB)
Image
Rejection (at 98 MHz): 75 dB
IF
Rejection(at 98 MHz): 75 dB
AM
Suppression (modulated 30%, AM by 1 kHz and 100% FM by 400 Hz): 50 dB
Selectivity
(±300 kHz, 40 kHz dev.): 40 dB (normal)
Capture
Ratio: 2,5 dB (normal)
Subcarrier
Suppression: 45 dB
Stereo
Separation:
At 1 kHz
: 40 dB
At 10 kHz
: 30 dB
AM Section
Frequency
Range:
MW : 522 - 1610 kHz
LW : 150 - 372 kHz
Antenna: Built-in ferrite bar antenna; External
Antenna terminal
Synthesizer
Tuner: yes
Span
Frequency: 9 kHz
Automatic
Tuning: yes
Pre-Setting
Station: FM/AM total 10
Sensitivity
MW : 350 µV/m (Signal-to-Noise 20 dB, 1000 kHz)
LW : 350 µV/m (Signal-to-Noise 10 dB, 220 kHz)
Audio
Section
FM Output
(40 kHz dev.): 350 mV (fixed)
AM Output
(30% mod.): 200 mV (fixed)
General
Power
Sourece: 110/220/240 V 50/60 Hz AC
Power
Consumption: 18 W (220 V)
Dimensions
(W x H x D): 430 x 75 x 393 mm
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