Sony ST-S 390

RDS Tuner SONY ST-S390

Technical data

  • Connections
    • Power supply cable fixed to it, Euro plug

2 FM-antenna inputs (very good if you live close to the border or if you want to use the offer of the cable provider besides the house antenna)

    • 2 special 4 pole sockets for cable remote control

Screw connection for AM antenna Screw connection for grounding audio output RCA stereo

    • no digital outputs or headphone connection


control units

    • on/off switch turns off the power supply completely
    • Rotary wheel, with weight for good tracking, without mechanical resistance
    • 7x small buttons for: RDS, AF, PTY, ANT, ANT-ATT, IF-Band, Stereo/Mute.
    • 3x round buttons for: Display, Display-Mode, Character

13x large buttons for: 10 number field, Memory, Tune Mode, Tuning/Preset, Direct


display Field strength display as bar Brightness of display switchable (light/dark)

    • Display of all info/details or only station name (switchable)
    • Display "Stereo" in red (everything else normal)


  • Internal values / other

3-band synthesizer (FM, MW, LW) Radio Data System (RDS)

    • Direct Comparator Technology
    • Reception and sound-improving Wave Optimizer technology

30 station memory (presets, 3 banks of 10 stations each) IF bandwidth switching (Narrow/Wide) Switchable antenna attenuator Hl-Blend Auto Tuning

    • Remote control via Control S-cable (not included)

Technical Details

  • General
    • Power supply 220-230V alternating voltage, 50/60 Hz
    • Power consumption 14 W
    • Dimensions (WxHxD): 430 x 85 x 295 millimetres
    • Weight: approx. 3.0 kg


FM tuner

    • Range 87.5 - 108 MHz

Antenna sockets 75 Ohm unbalanced

    • intermediate frequency 10,7 MHz
    • Sensitivity at 26dB signal to noise ratio: 10.3 dBf, 0.9µV/75 Ohm (mono)
    • Sensitivity at 46dB signal to noise ratio: 38.5dB, 23µV/75 Ohm (stereo)
    • Usable sensitivity 10.3dBf, 0.9µV/75ohm (IHF)
    • Signal-to-noise ratio (at 40 kHz deviation) 80 dB (mono) and 76 dB (stereo)

WIDE distortion 0.04% (mono), 0.05% (stereo) NARROW 0.06% (mono), 0.08% (stereo) Frequency response 30 Hz - 15 kHz (+0.2dB, -0.5dB) Channel separation 50 dB at 1 kHz Separation sharpness (at 400 kHz) Wide 80 kB, Narrow 90 dB Separation (at 300 kHz) Wide 45 kB, Narrow 70 dB

    • Output level (at 40 kHz deviation) 600 mV
  • MW/LW tuner
    • Reception range MW: 531 - 1,602 kHz (9 kHz grid)

LW reception range: 153 - 279 kHz (1 kHz grid) Intermediate frequency 450 kHz

    • Useable sensitivity (with MW/LW loop antenna)

MW: 300µV/m , LW: 1mV/m Signal-to-noise ratio 54 dB Clutter 0.3% Separation sharpness 32 dB

SONY ST-S390.jpg