Pioneer F-505
¥ 29,800 (around 1987)
Commentary
FM/AM digital synthesizer tuner adopting CCTS.
It is equipped with newly developed 8-bit microcomputer CCTS (Computer Controlled Tuning System).
By controlling the FM front-end (antenna stage, RF stage) and AM antenna stage with a computer, tracking error is theoretically eliminated and accurate tuning is achieved. This technology prevents degradation of sensitivity and frequency characteristics caused by tracking error.
Equipped with FM/AM random 24 station preset function.
Adjust the frequency of the broadcasting station you want to preset with the tuning button, press the memory button, and the display will flash. In this state, set it to the tuning button of your choice and store it. and it is completed.
Aiming for even lower distortion, it uses components such as audio capacitors, copper-plated screws to prevent magnetic distortion, and large polycarbonate insulators to efficiently absorb vibration.
It is equipped with an auto high blend circuit that monitors the electric field strength of the broadcasting station and can be enjoyed in an easy-to-listen condition at all times.
Equipped with 3-speed accelerator tuning that is easy to select channels.
Digital signal meter display is adopted.
Model Rating
| Type | FM/AM Digital Synthesizer Tuner |
| FM Tuner Section | |
| SN ratio 50 dB sensitivity | Mono : 1.8 μ V new IHF16.2 dBf Stereo : 19.7 μ V new IHF37.1 dBf |
| Practical Sensitivity (75 Ω) | Mono : 0.95 μ V new IHF10.8 dBf |
| SN ratio at 80 dBf input | mono:80dB stereo:76dB |
| Effective selectivity | 65dB(400kHz) |
| Stereo separation | 40dB(1kHz) |
| Frequency characteristic | 30 Hz to 15 kHz ± 1 dB |
| Image interference ratio | 55dB |
| IF interference ratio | 110dB |
| AM suppression ratio | 55dB |
| Antenna input impedance | 300 Ω Balanced Type 75 Ω Unbalanced Type |
| <AM Tuner Section> | |
| Practical sensitivity | 300 μ V/m (built-in antenna) |
| Selectivity | 20dB |
| <General> | |
| Output Level / Impedance | FM (100% modulation) : 650 mV AM (30% modulation) : 150 mV |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Power consumption (Electrical Appliance and Material Control Law) | 10W |
| External dimensions | Width 420x Height 64x Depth 216 mm |
| Weight | 2.4kg |