Joying tested android car stereo using Radio signal amplifier when just only 1-3 stations

After testing, we found we can use radio signal booster when only gets 1-3 stations, otherwise, it will have bad effect in radio reception.
It means, when the radio reception is poor and you can only get a few stations, the ANT208 FM booster will improve the radio reception. If you have good reception, and you connect ANT208, it will make radio quality down.
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