Technics ST-G6T
¥ 49,800 (around 1986)
Commentary
FM/AM tuner equipped with timer function.
Twin quartz is introduced, and quartz control is introduced in two places of front end part and MPX circuit.
The front end section achieves stable tuning by obtaining an accurate tuning frequency through quartz oscillation, while the MPX circuit achieves high stereo separation and low distortion by introducing quartz control.
A double PLL configuration is adopted in which the second PLL based on the quartz oscillation signal is multiplied by the PLL in the stereo demodulation circuit. The free running frequency of the VCO (voltage controlled oscillator), which fluctuates due to environmental changes such as temperature and humidity, is always accurately locked at 19 kHz.
Equipped with linear switching MPX / IC, the switching section is greatly simplified, and the dynamic switching section without nonlinear elements is constructed, and linearity is remarkably improved.
Equipped with an auto-IF function, the microcomputer automatically switches between two circuits, a normal circuit that gives the highest priority to sound quality and a super narrow circuit that is resistant to adjacent station interference, according to disturbance and input signal level.
The program timer function is used, and daily operation and one operation can be set.
Equipped with a signal fidelity indicator that enables a high-quality air check when lit.
Equipped with a quartz level check function, it can output a 333 Hz reference signal with an accuracy of 99.999%, and can set the recording level of the deck.
A total of 16 FM/AM stations are equipped with random access memory.
Equipped with auto-scan tuning and auto-memory function.
Equipped with FM signal strength digital display function.
.JPG)
Model Rating
| Type | 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 | 106 dB (1 kHz, 100% mod, 0 dB) |
| Frequency characteristic | 4 hz to 18 khz + 0. 2-0. 5 db |
| Effective selectivity | Normal : 40 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) 70dB(1kHz) 57dB(10kHz) |
| Leak Carrier (19 khz) | -70dB |
| <AM Tuner Section> | |
| Receiving frequency | 522 kHz to 1629 kHz |
| Practical sensitivity (S/N = 20 dB) | 290 μ V/m, 20 μ V |
| Selectivity | 50dB |
| Image interference ratio | 40dB |
| IF interference ratio | 60dB |
| <General> | |
| Quartz timer | Daily action 1 set, once action 1 set |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 9.5W |
| External dimensions | Width 430x Height 64x Depth 241 mm |
| Weight | 2.3kg |