Aurex ST-260
¥ 24,800 (year unknown)
Commentary
The front-end uses FET and 3-row varicon to obtain high sensitivity of 1.9 μ V.
The best tuning point can be easily selected by adopting the 2-meter method of signal and tuning.
The dial knob has a large knob and flywheel for improved operability.
Group delay characteristics have been improved by adopting a highly integrated IC in the IF stage.
In addition, PLL-IC is adopted in the MPX section, which is resistant to aging and realizes stable operation.
Muting is applied at the position of FM AUTO to eliminate inter-station noise.
Model Rating
Type | FM/AM Tuner |
Circuit system | FM3 series varicon, super heterodyne system MPX circuit of PLLIC specification |
Specification semiconductor | 1 FETx, 2 ICx, 8 Trx8, 8 Diox8, 1 LEDx |
FM Tuner Section | |
Receiving frequency | 76 MHz to 90 MHz |
Practical sensitivity | 1.9 μ V, 10.8 dBf (new IHF display) |
Harmonic distortion factor | Stereo : 0.4% Mono : 0.2% |
Signal-to-noise ratio (IHF) | Stereo : 68 dB Monaural : 73 dB |
Frequency characteristic | 20 Hz to 15000 Hz ± 1 dB |
Effective selectivity | 65dB |
Image interference ratio | 55dB |
IF interference ratio | 80dB |
Capture ratio | 1.0dB |
Spurious interference ratio | 80dB |
AM suppression ratio | 50dB |
Stereo Resolution (IHF) | 40dB(1kHz) 30 dB (50 to 10 kHz) |
Rated output | 500mV/5k Ω (400 Hz, 100% modulation) |
Antenna terminal | 300 Ω balanced, 75 Ω unbalanced |
<AM Tuner Section> | |
Receiving frequency | 525 kHz to 1605 kHz |
Practical sensitivity (IHF) | 300 μ V/m (bar antenna) 20 μ V (external antenna terminal) |
Image interference ratio | 40dB |
IF interference ratio | 40dB |
Selectivity | 25dB |
Signal-to-noise ratio | 45dB |
Antenna | With ferrite bar antenna and external antenna terminal |
<General> | |
Pwer | AC100V 50Hz/60Hz |
Power consumption | 6W |
External dimensions | Width 400x Height 146x Depth 305 mm |
Weight | 4.4kg |
Remarks | Dial Length 240 mm, with 2 Meters |