Audio Database

The

Lo-D FT-30
33,000yen(1979 release)

Description
 
The FM/AM tuner of A4 size which the improvement in an operationality also planned while improving the basic performance.

Low noise FET (field-effect transistor) excellent in the cross modulation property is adopted as FM front end part, PLL IC is adopted as FM multi-circuitry, and three good two-element ceramics filters and quadrature detection customer specific ICs of a phase response are adopted as the FM IF section.

The tri-state tuning indicator by three light emitting diodes is carried, and a tuning point can be checked easily just.

The loop antenna is carried only in AM.

The mode/muting switch which summarized the mode switching and the muting functionality to one are carried.

The 9kHz traps coil which eliminates the beat interference by the adjoining office at the time of AM reception is carried.


Rating of a mode
Form FM/AM tuner
<FM tuner part>
Practical speed 1.9 microvolts (IHF)
10.8dBf (new IHF)
SN ratio a sensitivity of 50dB mono: 3 microvolts / 14.8dBf
stereo: 40 microvolts / 38dBf
SN ratio mono:75dB
stereo:68dB
Effective selectivity 70dB
Stereo separation (1kHz) 40dB
Image stonewalling ratio 54dB
<AM tuner part>
Practical speed 12 microvolts (IHF)
300 microvolt/m (loop antenna)
Selectivity 33dB (±9kHz)
SN ratio 53dB (input 50 mV/m)
<Others>
Supply voltage AC100V, 50Hz/60Hz
Power dissipation 8W
Dimensions Width 297x height 78x depth of 254mm
Weight 3kg