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    This car antenna amplifier can be used up to 70 MHz and is specially designed to boost the weak signals captured by the car antenna.
    It has a high input impedance and a low noise figure.

    The total gain of the car antenna amplifier is around 30 dB and the input impedance at 30 Mhz is around 10 KΩ. The amplifier must be mounted directly at the base of the antenna to avoid signal losses caused by the capacitive character of the coaxial cable.

    This antenna amp must be used for non-mobile recievers. If you intend to install this circuit in you outdoor mounted antenna, make sure that is housed in a water proof case. Use this car antenna amp circuit only for receiver antennas. Transmitting through it will damage the components.

    Car Antenna Amp Circuit Diagram

    car antenna amplifier circuit schematic

    Antenna Amplifier PCB Layout

    car antenna amp pcb layout

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    5 Responses to "Car Antenna Amplifier Circuit"

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    1. Great info.
      BTW, I want to make antenna for STB dvb-t receiver that can use on my car.. can you help me send the schematics to my email?

      Thanks a lot :)

    2. I’m commenting to make you be aware of what a brilliant experience my wife’s girl undergone viewing your web site. She noticed a good number of details, most notably how it is like to possess a wonderful coaching mood to let many more clearly gain knowledge of a number of tricky matters. You truly surpassed my expected results. Thank you for distributing the productive, safe, edifying and in addition unique guidance on this topic to Jane.

    3. How can U increase the frequecy range of a car radio from 90-109 MGHz. Coz my radio cassette receiver only range from 87.5-108 MGHz.

    4. EVERIST PM says: on October 27, 2013 at 12:05 am

      can i get the function of each component on a car antenna amplifier circuit?

    5. Does it work with a 9V battery?

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