• Main principle
• PLL, Phase-locked loop

• Wave bands
• Broadcast (BC) and FM or UHF.

• Details
• Hi-Fi equipment

• Power type and voltage
• Alternating Current supply (AC) / 110; 120-127; 220; 240 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: FM/AM Digital Synthesizer Tuner F-223 / F-223-S - Pioneer Corporation; Tokyo

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 420 x 60 x 215 mm / 16.5 x 2.4 x 8.5 inch

• Notes

• A hi-fi AM/FM digital synthesizer stereo tuner with a digital frequency display housed in a black case (F-223) or a silver case (F-223-S). With Memory for 24 radio station presets, switches for Power, Station recall, Memory, Band selection, Tuning Up and Down, FM Mono and Auto/Manual Tuning, Stereo and Tuned indicators. On the back, RCA phono sockets for Line Output, terminals for FM antennae (75ohm), AM antenna and Ground. Supplied with a Loop antenna.

  Specification
  FM Tuner Section	87.5MHz - 108MHz
  Usable Sensitivity (IHF)	12.7dBf (1.2µV/75Ω)
  50dB Quieting Sensitivity	Mono: 18dBf (2.2µV/75Ω) Stereo: 38.3dBf (22.6µV/75Ω)
  Sensitivity (DIN)	Mono: 0.9µV/75Ω, Stereo: 31.5µV/75Ω
  S/N Ratio at 85dBf	Mono: 77dB, Stereo: 73dB
  S/N Ratio (DIN)	Mono: 62dB, Stereo: 60dB
  Distortion	0.5% (1kHz)
  Alt. Channel Selectivity	60dB (400kHz)
  Stereo Separation	40dB (1kHz)
  Frequency Response	30Hz-15kHz ±1dB
  Antenna Input	75Ω unbalanced
  Output	650mV (100% MOD.)
  AM (MW) Tuner Section	531kHz - 1,602kHz
  Sensitivity (IHF, Loop antenna)	350µV/m
  Selectivity	20dB
  S/N Ratio	45dB
  Antenna	Loop Antenna
  Output	150mV (30% MOD.)

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