KENWOOD KT-3080
¥ 32,000 (around 1997)
Commentary
AM stereo compatible FM/AM tuner equipped with active reception circuit.
It is equipped with an active reception circuit to respond to all radio wave conditions.
When the receiving frequency is changed such as tuning up / down or calling up a preset while the active reception key is held down, the microcomputer judges the input sensitivity and radio wave condition such as adjacent interference, and automatically switches the IF band, RF attenuator and antenna A/B to maintain optimum reception quality.
The IF band can be switched to two levels. The optimum reception can be achieved by switching the IF band to the WIDE position when receiving normally, or to the Narrow position when hearing is difficult due to interference from a distant station or an adjacent station.
Equipped with an RF attenuator, turning the switch ON reduces RF modulation distortion and cross-modulation distortion that occur when a strong broadcast station is adjacent to the desired station.
Antenna A/B switching is adopted, and switching can be performed according to antenna direction and conditions.
Equipped with a 5-point signal meter.
Random access 40 preset memories are installed.
Model Rating
| Type | Stereo synthesizer FM/AM tuner |
| FM Tuner Section | |
| Receiving frequency range | 76 MHz to 90 MHz |
| Antenna impedance | 75 Ω unbalance |
| Practical sensitivity | Mono : 1.6 μ V (75 Ω) / 15.2 dBf (5 kHzdev, S/N30dB) |
| Harmonic distortion factor (1 kHz, 85 dBf input) | mono:0.05% stereo:0.09% |
| SN ratio (1 kHz, 75 kHz dev, 85 dBf input) | mono:80dB stereo:75dB |
| Stereo separation | 52dB(1kHz) |
| Capture ratio | Wide:2.0dB Narrow:3.0dB |
| Effective selectivity (± 400 kHz) | Wide:55dB |
| Image interference ratio | 65dB |
| IF interference ratio | 100dB |
| Spurious interference ratio | 100dB |
| AM suppression ratio | 68dB |
| Subcarrier suppression ratio | 55dB |
| Frequency characteristic | 30 Hz ~ 15 kHz + 0.5 -1.5 dB |
| <AM Tuner Section> | |
| Receiving frequency | 531 kHz to 1602 kHz |
| Practical sensitivity (30% modulation, S/N20dB) | 12 μ V (400 μ V/m) |
| Signal-to-noise ratio (30% modulation, 1 mv input) | mono:50dB stereo:41dB |
| Total harmonic distortion factor | mono:0.4% stereo:1% |
| Stereo separation | 30dB |
| Image interference ratio | 30dB |
| IF interference ratio | 45dB |
| Effective selectivity | 30dB |
| <General> | |
| Output Level / Impedance | FM : 0.6V/0.6k Ω (1 kHz, 75 kHzdev) AM : 0.18V/0.6k Ω (400 Hz, 30% modulation) |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Rated power consumption | 8W |
| Maximum external dimensions | Width 440x Height 93x Depth 379.5 mm |
| Weight | 3.3kg |