AIWA S-R22

Commentary

FM/AM tuner of mini component my Pace5 series.

It uses a digital tuning system and displays the reception frequency accurately in numbers.
It is a method to check the actually received frequency based on the crystal oscillation with excellent frequency accuracy, and prevents the shift between the dial face and the received frequency.

The front-end high-frequency amplifier uses a dual-gate MOS-FET with excellent noise characteristics to improve sensitivity, eliminate interference, and improve selectivity.

PLL-IC is used for the MPX circuit.

Equipped with a 5-point LED bar display signal meter using red LED.

Equipped with a high-blend circuit that cuts out high-frequency noise.

It is equipped with a muting circuit that cuts out pop noise during detuning and unpleasant inter-station noise during tuning.

Equipped with an AFC circuit to prevent reception error.

A 12 VDC power supply can be used.

Model Rating

Type	FM/AM Tuner
FM Tuner Section
Receiving frequency	76 MHz to 90 MHz
Practical sensitivity	Mono : 1.9 μ V
Capture ratio	1.5dB
Effective selectivity	70dB
Signal-to-noise ratio	mono:75dB stereo:70dB
Image interference ratio	55dB
Subcarrier suppression ratio	65dB
AM suppression ratio	55dB
Harmonic distortion factor	mono:0.1%(1kHz) stereo:0.25%(1kHz)
Frequency characteristic	50 Hz to 10 kHz ± 0.5 dB 30 Hz ~ 15 kHz + 0.5 -1.5 dB
Stereo separation	45dB(1kHz)
Harmonics spurious	80dB
<AM Tuner Section>
Receiving frequency	525 kHz to 1605 kHz
Sensitivity	20 μ V (IHF) Bar antenna : 250 μ V/m
Distortion factor	0.9%
Selectivity	30dB
Signal-to-noise ratio	50 dB (30% input, 1 mV)
Image interference ratio	45dB
Power Supply Unit and Others
Pwer	100 VAC, 50Hz/60Hz 12 VDC (Operating Range 11 ~ 14 V)
Power consumption	6w
External dimensions	Width 240x Height 71x Depth 226 mm (With Handle)
Weight	2.1kg
Attachment	Stereo pin code AC cord FM feeder antenna Handle