Technics ST-G5
¥ 49,800 (released in 1983)
Commentary
A quartz synthesizer tuner that further enhances the performance of a DC tuner and achieves excellent audio characteristics.
The DC peak sample-and-hold MPX circuit is integrated into a one chip IC. This circuit eliminates phase distortion by using a fast rising pulse wave for stereo demodulation.
DC amplification, DC detection DC detection, and DC demodulation, and has been polished to obtain more accurate waveform reproduction capability, resulting in excellent characteristics.
Equipped with an auto-IF circuit, the microcomputer automatically switches between a normal circuit that emphasizes sound quality and a super narrow circuit that has narrow bandwidth and high selectivity according to the receiving state.
FM/AM16 station random access memory is mounted.
In addition, if you press the button by the auto memory function, the station will be automatically searched and stored.
Equipped with an auto-scan tuning function, it finds out the nearest station and performs quartz lock.
Equipped with a 10 db step 3-step switching scanning level function, the receiving station is automatically selected according to the signal strength.
Equipped with a signal strength lead-out function, the signal strength of the receiving station can be displayed accurately up to 54 dB in 2 dB steps.
The quartz level check function outputs a 333 Hz reference signal as a square wave, enabling accurate recording level setting of the deck.
Equipped with an FM wing antenna terminal that can be tuned automatically.
Model Rating
| Type | Quartz synthesizer FM/AM tuner |
| FM Tuner Section | |
| Receiving frequency | 76.1 mhz to 89.9 mhz |
| Practical Sensitivity (75 Ω) | 10.3dBf/0.9 μ V (IHF' 58) |
| SN50dB Sensitivity (75 Ω) | Mono : 18.1dBf/2.2 μ V (IHF' 58) Stereo : 38.1dBf/22 μ V (IHF' 58) |
| Distortion factor | mono:0.009% stereo:0.015% |
| Dynamic range | 100 dB (1 kHz, 100% mod, 0 dB) |
| Frequency characteristic | 5 hz to 18 khz + 0. 2-0. 5 db |
| Effective selectivity | Normal : 55 dB (± 400 kHz) Super narrow : 25 dB (± 200 kHz) |
| Capture ratio | 1.0dB |
| Image interference ratio | 90dB(83MHz) |
| IF interference ratio | 105dB(83MHz) |
| Spurious interference ratio | 110dB(83MHz) |
| AM suppression ratio | 55dB |
| Stereo separation | 60dB(20Hz) 65dB(1kHz) 50dB(10kHz) |
| Leak Carrier (19 khz) | -70dB |
| <AM Tuner Section> | |
| Receiving frequency | 522 kHz to 1611 kHz |
| Practical sensitivity (S/N = 20 dB) | 290 μ V/m, 20 μ V |
| Selectivity | 55dB |
| Image interference ratio | 40dB |
| IF interference ratio | 60dB |
| <General> | |
| Power failure compensation | About 1 week |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 8W |
| External dimensions | Width 430x Height 54x Depth 245 mm |
| Weight | 2.4kg |