ONKYO T-403
¥ 28,000 (around 1992)
Commentary
FM/AM tuner equipped with 6 Class memory that can assign your favorite broadcasting station to 6 groups.
A twin varactor diode and a MOS FET are used for the front end, enabling excellent reception even in weak electric field regions.
The IF circuit uses a ceramic filter with excellent group delay characteristics to ensure low distortion and high selectivity.
The AM tuner section uses a low-impedance AM loop antenna.
The IF stage consists of a 3-terminal ceramic filter and coil, ensuring low distortion and preventing beat failure.
It uses a classified memory that can divide the desired FM/AM station into 6 groups from A to F.
40 stations can be registered in each class, and overlapping stations are also possible.
Equipped with APR (Automatic Precision Reception) system, sensitivity and stereo mode can be switched automatically for optimum reception.
Remote control is possible by combining with A-913.
Equipped with an auto-tuning mechanism that scans automatically and stops automatically at the station receiving position.
In addition to the titanium gold model, there is also a black model.
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Model Rating
| Type | FM/AM Tuner |
| FM Tuner Section | |
| Receiving frequency | 76.1 mhz to 89.9 mhz |
| Practical Sensitivity (IHF 75 Ω) | 1.0 μ V/11.2 dBf |
| S/N50dB sensitivity (IHF, 75 Ω) | 2.4 μ v/18.8 dBf |
| Image interference ratio | 60dB(83MHz) |
| IF interference ratio | 120dB(83MHz) |
| Spurious interference ratio | 85dB |
| Two signal selectivity | 60dB |
| Strain Rate (400 Hz) | mono:0.1% stereo:0.2% |
| Stereo separation | 40dB(1kHz) 38 dB (100 Hz to 10 kHz) |
| AM suppression ratio | 60dB |
| Capture ratio | 1.0dB |
| Signal-to-noise ratio | mono:82dB stereo:74dB |
| Frequency characteristic | 20 Hz ~ 15 kHz + 0 -1dB |
| Carrier leak | -65dB |
| Antenna impedance | 75 Ω unbalance |
| Output Voltage (400 Hz) | 500mV(100%) |
| Output impedance | 4k Ω |
| <AM Tuner Section> | |
| Practical sensitivity | 20 μ V/m (attached loop antenna) |
| Image interference ratio (999 kHz) | 35dB |
| IF interference ratio (999 kHz) | 50dB |
| Selectivity (+ / - 10k) | 35dB |
| Signal-to-noise ratio | 50dB(100mV/m) |
| Strain Rate (400 Hz) | 0.3% |
| Output Voltage (400 Hz) | 150mV(30%) |
| Output impedance | 4k Ω |
| <General> | |
| Pwer | 100 VAC, 50/60Hz |
| Power consumption (Electrical Appliance and Material Control Law) | 12W |
| External dimensions | Width 455x Height 75.5x Depth 306 mm |
| Weight | 3.4kg |