Audio Database

Image of T-443FX
Commentary

FM/AM tuner for multi-channel FM and high-quality broadcasting programs.

The front end uses a twin varactor diode and MOS FET to improve high sensitivity and stable reception performance. The IF circuit uses a ceramic filter with excellent delay characteristics to ensure low distortion and high selectivity.

Uses MPX-PLL and IC.

It has a built-in auto-tuning mechanism that scans automatically by pressing the UP/DOWN keys and stops automatically at the station receiving position.

Up to a total of 20 FM and AM broadcasting stations can be stored in memory at random. If you preset 1 ℃, you can easily call up and tune from 10 keys.
It also has a built-in backup function that does not erase the memory even in case of power failure.

The AM section uses a low-impedance AM loop antenna, and the IF stage is composed of a 3-terminal ceramic filter and coil.

Model Rating
Method FM/AM Tuner
FM Tuner Section
Receiving frequency 76.1 mhz to 89.9 mhz
Practical sensitivity 1.0 μ V (75 Ω)
11.2dBf(IHF)
S/N50dB sensitivity 2.4 μ V (75 Ω)
18.8dBf(IHF)
Image interference ratio 60dB(83MHz)
IF interference ratio 100dB(83MHz)
Spurious interference ratio 85dB
Two signal selectivity 60dB
Strain Rate (400 Hz) mono:0.1%
stereo:0.2%
Stereo separation 50dB(1kHz)
38 dB (100 Hz to 10 kHz)
AM suppression ratio 60dB
Capture ratio 1.0dB
Signal-to-noise ratio mono:82dB
stereo:76dB
Frequency characteristic 20 Hz to 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 200 μ V/m (attached loop antenna)
Image Interference Ratio (999 Hz) 35dB
IF interference ratio (999 Hz) 50dB
Selectivity (+ / - 10k) 35dB
SN ratio (100mV/m) 50dB
Strain Rate (400 Hz) 0.3%
Output Voltage (400 Hz) 0.3%
Output impedance 4k Ω
<General>
Pwer 100 VAC, 50/60Hz
Power consumption (Electrical Appliance and Material Control Law) 10W
External dimensions Width 435x Height 72x Depth 265 mm
Weight 2.6kg