Technics ST-3100

Commentary

FM/AM tuner that uses a double motion tuning meter.

In addition to the conventional muting circuit that cancels out inter-station noise during channel selection, we have developed and installed a special muting circuit that catches only the FM stereo broadcast transmission.

The FM front-end uses a newly developed dual-gate MOS FET to obtain high sensitivity.

The FM MPX circuit is integrated into a single IC using a newly developed monolithic IC.
By adopting a switching circuit unique to the IC, separation characteristics in the high frequency range have been improved.

Frequency number line type dial is adopted for accurate channel selection.

There is a headphone out on the front panel, and you can enjoy FM stereo broadcast transmission with this one.

In order to support FM4ch broadcasting, a 4-ch conversion device connection terminal is mounted.

Equipped with two variable and fixed output terminals.

Model Rating

Type	FM/AM Tuner
FM Tuner Section
Receiving frequency	76 MHz to 90 MHz
Sensitivity (IHF)	2.3 μ V
Selectivity (IHF)	45 dB or more
Image ratio	50dB(83MHz)
IF interference ratio	93dB(83MHz)
Spurious interference ratio	70 dB or more
Capture ratio	2.5dB
AM suppression ratio	48dB
Stereo separation	42dB(1kHz)
SN ratio (IHF, 100% modulation)	mono:65dB stereo:60dB
Frequency characteristic	30 Hz to 15,000 Hz
Antenna	300 Ω equilibrium 75 Ω unbalance
<AM Tuner Section>
Receiving frequency	525 kHz to 1605 kHz
Sensitivity (IHF)	30 μ V, 150 μ V/m
Selectivity	30 dB or more
Image Ratio (1000 kHz)	40dB
IF Disturbance Ratio (1000 kHz)	30dB
SN ratio (30% modulation)	50 dB or more
Antenna	Ferrite bar antenna External antenna terminal
<General>
Functions	Program Selector : FM mono/FM Auto/AM MPX Noise Canceller Muting switch FM stereo eye Tuning meter Level adjustment knob Headphone port
Semiconductor used	IC : 1 FET : 1 Transistor : 20 Diode : 14 pcs
Pwer	100 VAC, 50Hz/60Hz
Power consumption	12W
External dimensions	Width 394x Height 119x Depth 282 mm
Weight	5.5kg